[BioC] doubt in HTqPCR

Heidi Dvinge heidi at ebi.ac.uk
Mon Sep 19 10:51:26 CEST 2011


Madam,

> Sir,
>
> Iam afraid that whether in R HTqPCR iam getting inconsistent results with
> same sets of data. I have analysed same data got two different results
> details of analysis and results that is given below. In both i have used
> same data only difference in file.txt, in analysis1 the all normal sample
> are cluster together  and analysis 2 are randomly arranged.
>
It looks like your problem is that you don't start with a clean workspace.
When you start R you should notice the line:

> [Previously saved workspace restored]

I.e. you ahve some old objects floating around. WHen you read in file.txt
you assign it to the object "exFiles", but when you run the analysis you
say "groups=files$Treatment[1:99]". The object "files" has nothing
whatsover to do with your file.txt, but seems to be something left over
from a previous analysis.

Try starting from a clean workspace, or start out with typing rm(list=ls()).

HTH
\Heidi
>
>
> Analysis 1
>
>
>
> R version 2.11.0 (2010-04-22)
>
> Copyright (C) 2010 The R Foundation for Statistical Computing
>
> ISBN 3-900051-07-0
>
> R is free software and comes with ABSOLUTELY NO WARRANTY.
>
> You are welcome to redistribute it under certain conditions.
>
> Type 'license()' or 'licence()' for distribution details.
>
>   Natural language support but running in an English locale
>
> R is a collaborative project with many contributors.
>
> Type 'contributors()' for more information and
>
> 'citation()' on how to cite R or R packages in publications.
>
> Type 'demo()' for some demos, 'help()' for on-line help, or
>
> 'help.start()' for an HTML browser interface to help.
>
> Type 'q()' to quit R.
>
> [Previously saved workspace restored]
>
>> library(HTqPCR)
>
> Loading required package: Biobase
>
> Welcome to Bioconductor
>
>   Vignettes contain introductory material. To view, type
>
>   'openVignette()'. To cite Bioconductor, see
>
>   'citation("Biobase")' and for packages 'citation(pkgname)'.
>
> Loading required package: RColorBrewer
>
> Loading required package: limma
>
>> library(limma)
>
>> library(RColorBrewer)
>
>> exPath <- "F:/HTqPCR/tlda_new_all"
>
>> exFiles <- read.delim(file.path(exPath, "files.txt"))
>
>> raw <- readCtData(files=exFiles$File[c(1:99)], path=exPath, n.features =
> 48, flag = 4, feature = 6, type = 7, position = 3, Ct = 8, header = FALSE,
> SDS = FALSE, n.data = 1, na.value = 40)
>
>> raw
>
> An object of class "qPCRset"
>
> Size:  48 features, 99 samples
>
> Feature types:           Endogenous Control, Target
>
> Feature names:           CCNF-Hs00171049_m1 RBL2-Hs00180562_m1
> CCND1-Hs00277039_m1 ...
>
> Feature classes:
>
> Feature categories:      OK, Undetermined
>
> Sample names:            N1 N2 N3 ...
>
>> path <- "F:/HTqPCR/tlda_new_all"
>
>> (read.delim(file.path(path, "files.txt")))
>
>       File Treatment
>
> 1   N1.txt    Normal
>
> 2   N2.txt    Normal
>
> 3   N3.txt    Normal
>
> 4   N4.txt    Normal
>
> 5   N5.txt    Normal
>
> 6   N6.txt    Normal
>
> 7   N7.txt    Normal
>
> 8   N8.txt    Normal
>
> 9   N9.txt    Normal
>
> 10 N10.txt    Normal
>
> 11 N11.txt    Normal
>
> 12 N12.txt    Normal
>
> 13 N13.txt    Normal
>
> 14 N14.txt    Normal
>
> 15 N15.txt    Normal
>
> 16 N16.txt    Normal
>
> 17 N17.txt    Normal
>
> 18 N18.txt    Normal
>
> 19 N19.txt    Normal
>
> 20 N20.txt    Normal
>
> 21 N21.txt    Normal
>
> 22 N22.txt    Normal
>
> 23 N23.txt    Normal
>
> 24 N24.txt    Normal
>
> 25  T1.txt     tumor
>
> 26  T2.txt     tumor
>
> 27  T3.txt     tumor
>
> 28  T4.txt     tumor
>
> 29  T5.txt     tumor
>
> 30  T6.txt    Normal
>
> 31  T7.txt    Normal
>
> 32  T8.txt     tumor
>
> 33  T9.txt     tumor
>
> 34 T10.txt     tumor
>
> 35 T11.txt     tumor
>
> 36 T12.txt     tumor
>
> 37 T13.txt     tumor
>
> 38 T14.txt     tumor
>
> 39 T15.txt     tumor
>
> 40 T16.txt     tumor
>
> 41 T17.txt     tumor
>
> 42 T18.txt     tumor
>
> 43 T19.txt     tumor
>
> 44 T20.txt     tumor
>
> 45 T21.txt     tumor
>
> 46 T22.txt     tumor
>
> 47 T23.txt     tumor
>
> 48 T24.txt     tumor
>
> 49 T25.txt     tumor
>
> 50 T26.txt     tumor
>
> 51 T27.txt     tumor
>
> 52 T28.txt     tumor
>
> 53 T29.txt     tumor
>
> 54 T30.txt     tumor
>
> 55 T31.txt     tumor
>
> 56 T32.txt     tumor
>
> 57 T33.txt     tumor
>
> 58 T34.txt     tumor
>
> 59 T35.txt     tumor
>
> 60 T36.txt     tumor
>
> 61 T37.txt     tumor
>
> 62 T38.txt     tumor
>
> 63 T39.txt     tumor
>
> 64 T40.txt     tumor
>
> 65 T41.txt     tumor
>
> 66 T42.txt     tumor
>
> 67 T43.txt     tumor
>
> 68 T44.txt     tumor
>
> 69 T45.txt     tumor
>
> 70 T46.txt     tumor
>
> 71 T47.txt     tumor
>
> 72 T48.txt     tumor
>
> 73 T49.txt     tumor
>
> 74 T50.txt     tumor
>
> 75 T51.txt     tumor
>
> 76 T52.txt     tumor
>
> 77 T53.txt     tumor
>
> 78 T54.txt     tumor
>
> 79 T55.txt     tumor
>
> 80 T56.txt     tumor
>
> 81 T57.txt     tumor
>
> 82 T58.txt     tumor
>
> 83 T59.txt     tumor
>
> 84 T60.txt     tumor
>
> 85 T61.txt     tumor
>
> 86 T62.txt     tumor
>
> 87 T63.txt     tumor
>
> 88 T64.txt     tumor
>
> 89 T65.txt     tumor
>
> 90 T66.txt     tumor
>
> 91 T67.txt     tumor
>
> 92 T68.txt     tumor
>
> 93 T69.txt     tumor
>
> 94 T70.txt     tumor
>
> 95 T71.txt     tumor
>
> 96 T72.txt     tumor
>
> 97 T73.txt     tumor
>
> 98 T74.txt     tumor
>
> 99 T75.txt     tumor
>
>> raw.cat <- setCategory(raw, Ct.max = 38, Ct.min = 5, replicates = TRUE,
> quantile = NULL, groups, flag = TRUE, flag.out = "Failed", verbose = TRUE,
> plot = FALSE)
>
> Categories after Ct.max and Ct.min filtering:
>
>              N1 N2 N3 N4 N5 N6 N7 N8 N9 N10 N11 N12 N13 N14 N15 N16 N17
> N18
> N19
>
> OK           48 48 47 46 48 48 48 48 48  48  48  47  48  48  48  48  43
> 48
> 48
>
> Undetermined  0  0  1  2  0  0  0  0  0   0   0   1   0   0   0   0   5
> 0
> 0
>
>              N20 N21 N22 N23 N24 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12
> T13
> T14
>
> OK            48  47  48   3  48 48 48 48 48 48 48 48 46 48  48  48  48
> 48
> 48
>
> Undetermined   0   1   0  45   0  0  0  0  0  0  0  0  2  0   0   0   0
> 0
> 0
>
>              T15 T16 T17 T18 T19 T20 T21 T22 T23 T24 T25 T26 T27 T28 T29
> T30
>
> OK            48  48  48  48  48  48  44  48  45  48  48  48  48  48  48
> 48
>
> Undetermined   0   0   0   0   0   0   4   0   3   0   0   0   0   0   0
> 0
>
>              T31 T32 T33 T34 T35 T36 T37 T38 T39 T40 T41 T42 T43 T44 T45
> T46
>
> OK            48  48  48  48  48  48  48  48  48  48  48  48  48  48  48
> 48
>
> Undetermined   0   0   0   0   0   0   0   0   0   0   0   0   0   0   0
> 0
>
>              T47 T48 T49 T50 T51 T52 T53 T54 T55 T56 T57 T58 T59 T60 T61
> T62
>
> OK            47  48  48  48  48  48  48  48  48  48  48  48  48  48  48
> 48
>
> Undetermined   1   0   0   0   0   0   0   0   0   0   0   0   0   0   0
> 0
>
>              T63 T64 T65 T66 T67 T68 T69 T70 T71 T72 T73 T74 T75
>
> OK            48  48  48  48  48  48  34  33  21  47  47  46  46
>
> Undetermined   0   0   0   0   0   0  14  15  27   1   1   2   2
>
>> q.norm <- normalizeCtData(raw.cat, norm="quantile")
>
>> qDE.ttest <- ttestCtData(q.norm[,1:99], groups=files$Treatment[1:99],
>
> + calibrator="Normal")
>
>> qDE.ttest[1:48,]
>
>                    genes feature.pos       t.test    p.value adj.p.value
>
> 47    TP53-Hs00153349_m1          M5  2.295891791 0.02812777   0.7125000
>
> 31  CDKN2A-Hs00233365_m1          N9 -2.082255233 0.04380924   0.7125000
>
> 2      ATM-Hs00175892_m1         N23  1.937805071 0.06000455   0.7125000
>
> 4     BCL2-Hs00608023_m1         N24  1.770657925 0.08396548   0.7125000
>
> 24    CDK5-Hs00358991_g1          N5 -1.666016360 0.10350732   0.7125000
>
> 20  CDC25C-Hs00156411_m1         M12  1.630183670 0.10933804   0.7125000
>
> 27    CDK8-Hs00176209_m1         M14 -1.546067079 0.12925207   0.7125000
>
> 46    TGFA-Hs00608187_m1         N22 -1.547216622 0.12962975   0.7125000
>
> 36    E2F1-Hs00153451_m1         N13  1.496405692 0.14153371   0.7125000
>
> 3      ATR-Hs00169878_m1         N16  1.424482218 0.16073293   0.7125000
>
> 33  CDKN2C-Hs00176227_m1         N15  1.329395172 0.19193228   0.7125000
>
> 1      18S-Hs99999901_s1         M11  1.330427353 0.19295059   0.7125000
>
> 14    CCNF-Hs00171049_m1          M1 -1.264650510 0.21288347   0.7125000
>
> 25    CDK6-Hs00608037_m1         M13 -1.260494621 0.21591150   0.7125000
>
> 29  CDKN1B-Hs00153277_m1         M20  1.197283433 0.23807788   0.7125000
>
> 9    CCND1-Hs00277039_m1          M3  1.186232786 0.24153101   0.7125000
>
> 16    CCNH-Hs00236923_m1         M18  1.159827899 0.25234377   0.7125000
>
> 42    PIN1-Hs00749260_s1          M7 -1.017033208 0.31677086   0.7312508
>
> 44    RBL1-Hs00765707_m1          N6 -0.990603791 0.32746372   0.7312508
>
> 35   CHEK1-Hs00176236_m1          M4 -0.984312292 0.32974562   0.7312508
>
> 22    CDK2-Hs00608082_m1          N7  0.921231845 0.36229801   0.7312508
>
> 19   CDC20-Hs00415851_g1         N20 -0.891251276 0.37816127   0.7312508
>
> 30  CDKN1C-Hs00175938_m1         N17  0.885721819 0.38133275   0.7312508
>
> 23    CDK4-Hs00364847_m1         M10  0.880593383 0.38332999   0.7312508
>
> 38    EGFR-Hs00193306_m1          M6 -0.861446299 0.39248804   0.7312508
>
> 48 TP53BP2-Hs00610488_m1         M17 -0.859232889 0.39609417   0.7312508
>
> 26    CDK7-Hs00757090_g1          N8 -0.793062156 0.43214696   0.7682613
>
> 8     CCNC-Hs00193177_m1          M8 -0.748176629 0.46024346   0.7780245
>
> 39 GADD45A-Hs00169255_m1          N4  0.730384641 0.47005649   0.7780245
>
> 12   CCNE1-Hs00233356_m1         N11 -0.661190280 0.51247743   0.8199639
>
> 40    MDM2-Hs00242813_m1         N14  0.523011580 0.60315433   0.9162412
>
> 32  CDKN2B-Hs00793225_m1         M16 -0.511063425 0.61082746   0.9162412
>
> 18    CDC2-Hs00364293_m1         N21  0.424545098 0.67372768   0.9398924
>
> 6    CCNB1-Hs00259126_m1         M23 -0.397648195 0.69294867   0.9398924
>
> 43     RB1-Hs00153108_m1         M24 -0.356106465 0.72438495   0.9398924
>
> 21   CDC34-Hs00362082_m1          M9 -0.347115072 0.73067318   0.9398924
>
> 7    CCNB2-Hs00270424_m1         N19  0.343158811 0.73340270   0.9398924
>
> 45    RBL2-Hs00180562_m1          M2  0.301231001 0.76499875   0.9398924
>
> 37    E2F2-Hs00231667_m1         N12  0.264437309 0.79257682   0.9398924
>
> 17    CCNK-Hs00395018_m1          N2  0.250846802 0.80298088   0.9398924
>
> 41   MKI67-Hs00606991_m1         M19 -0.221244374 0.82592897   0.9398924
>
> 13   CCNE2-Hs00180319_m1         N18  0.207823187 0.83649945   0.9398924
>
> 34  CDKN2D-Hs00176481_m1         N10 -0.200743474 0.84198691   0.9398924
>
> 11   CCND3-Hs00426901_m1         M15 -0.136550193 0.89195280   0.9511576
>
> 15   CCNG2-Hs00171119_m1         M21  0.124235792 0.90172251   0.9511576
>
> 28  CDKN1A-Hs00355782_m1          N3  0.111822460 0.91152601   0.9511576
>
> 5    CCNA1-Hs00171105_m1         M22 -0.051450616 0.95924075   0.9796501
>
> 10   CCND2-Hs00277041_m1          N1  0.001033206 0.99918012   0.9991801
>
>             ddCt        FC meanCalibrator meanTarget categoryTarget
>
> 47 -0.5771835615 1.4919338       28.29557   27.71839   Undetermined
>
> 31  1.2149986166 0.4307735       26.10425   27.31925   Undetermined
>
> 2  -0.4342070891 1.3511680       29.73063   29.29643   Undetermined
>
> 4  -0.7067142098 1.6320828       30.29411   29.58740   Undetermined
>
> 24  0.2932291238 0.8160734       27.90855   28.20178   Undetermined
>
> 20 -0.3931802780 1.3132852       32.55413   32.16095   Undetermined
>
> 27  0.2315856136 0.8516983       27.81600   28.04759   Undetermined
>
> 46  0.5136423509 0.7004518       26.83748   27.35112   Undetermined
>
> 36 -0.3443487024 1.2695777       29.15093   28.80658   Undetermined
>
> 3  -0.2234603706 1.1675306       28.68034   28.45687   Undetermined
>
> 33 -0.4275325781 1.3449314       30.19377   29.76624   Undetermined
>
> 1  -1.5299479008 2.8877541       11.84900   10.31905             OK
>
> 14            NA        NA             NA   27.57528   Undetermined
>
> 25  0.2203066750 0.8583829       26.65416   26.87446   Undetermined
>
> 29 -0.2577058577 1.1955760       26.47668   26.21897   Undetermined
>
> 9  -0.3473309551 1.2722048       26.85627   26.50894   Undetermined
>
> 16 -0.1645688561 1.1208311       28.09055   27.92598   Undetermined
>
> 42            NA        NA       22.82325         NA             OK
>
> 44  0.1898566073 0.8766929       28.86255   29.05241   Undetermined
>
> 35  0.1946000847 0.8738151       28.21858   28.41318   Undetermined
>
> 22 -0.1650715778 1.1212217       29.11399   28.94892   Undetermined
>
> 19  0.3223268749 0.7997789       26.74567   27.06800   Undetermined
>
> 30 -0.5765941675 1.4913245       28.00179   27.42520   Undetermined
>
> 23 -0.3528688765 1.2770977       25.44603   25.09316   Undetermined
>
> 38  0.1870928877 0.8783739       26.18928   26.37638   Undetermined
>
> 48  0.1326862796 0.9121315       27.71044   27.84313   Undetermined
>
> 26  0.1239877900 0.9176476       28.00722   28.13121   Undetermined
>
> 8   0.1290736586 0.9144184       26.98845   27.11752   Undetermined
>
> 39 -0.1728404506 1.1272757       28.36314   28.19030   Undetermined
>
> 12  0.1829117466 0.8809233       29.45615   29.63906   Undetermined
>
> 40 -0.1034057465 1.0743066       26.39775   26.29434   Undetermined
>
> 32            NA        NA       27.81330         NA   Undetermined
>
> 18 -0.0869243673 1.0621035       28.34943   28.26251   Undetermined
>
> 6   0.0906105280 0.9391252       28.06654   28.15715   Undetermined
>
> 43  0.0968366238 0.9350811       27.29783   27.39467   Undetermined
>
> 21  0.0659027358 0.9553473       26.67284   26.73874   Undetermined
>
> 7  -0.1037258208 1.0745449       27.63123   27.52750   Undetermined
>
> 45 -0.0574024676 1.0405905       27.51019   27.45279   Undetermined
>
> 37 -0.0947104615 1.0678511       28.89725   28.80254   Undetermined
>
> 17 -0.0259664431 1.0181615       26.96487   26.93890   Undetermined
>
> 41  0.0688651399 0.9533877       27.51280   27.58166   Undetermined
>
> 13 -0.0416421111 1.0292847       30.18775   30.14610   Undetermined
>
> 34  0.0403632814 0.9724101       28.51461   28.55498   Undetermined
>
> 11  0.0247566698 0.9829864       26.77960   26.80436   Undetermined
>
> 15 -0.0188040565 1.0131193       27.74717   27.72837   Undetermined
>
> 28 -0.0586069931 1.0414597       22.90229   22.84369   Undetermined
>
> 5             NA        NA             NA         NA   Undetermined
>
> 10 -0.0002114316 1.0001466       26.40150   26.40128   Undetermined
>
>    categoryCalibrator
>
> 47                 OK
>
> 31                 OK
>
> 2                  OK
>
> 4        Undetermined
>
> 24                 OK
>
> 20       Undetermined
>
> 27                 OK
>
> 46                 OK
>
> 36                 OK
>
> 3                  OK
>
> 33                 OK
>
> 1                  OK
>
> 14                 OK
>
> 25                 OK
>
> 29                 OK
>
> 9                  OK
>
> 16                 OK
>
> 42                 OK
>
> 44                 OK
>
> 35                 OK
>
> 22                 OK
>
> 19                 OK
>
> 30                 OK
>
> 23                 OK
>
> 38                 OK
>
> 48                 OK
>
> 26                 OK
>
> 8                  OK
>
> 39                 OK
>
> 12                 OK
>
> 40                 OK
>
> 32                 OK
>
> 18                 OK
>
> 6                  OK
>
> 43       Undetermined
>
> 21                 OK
>
> 7                  OK
>
> 45                 OK
>
> 37                 OK
>
> 17                 OK
>
> 41                 OK
>
> 13                 OK
>
> 34                 OK
>
> 11                 OK
>
> 15                 OK
>
> 28                 OK
>
> 5        Undetermined
>
> 10                 OK
>
>> write.table(qDE.ttest, file="test20.xls", sep="\t", quote=FALSE,
> row.names=FALSE)
>
>> sessionInfo()
>
> R version 2.11.0 (2010-04-22)
>
> x86_64-pc-mingw32
>
> locale:
>
> [1] LC_COLLATE=English_India.1252  LC_CTYPE=English_India.1252
>
> [3] LC_MONETARY=English_India.1252 LC_NUMERIC=C
>
> [5] LC_TIME=English_India.1252
>
> attached base packages:
>
> [1] stats     graphics  grDevices utils     datasets  methods   base
>
> other attached packages:
>
> [1] HTqPCR_1.2.0       limma_3.4.3        RColorBrewer_1.0-2 Biobase_2.8.0
>
>
> loaded via a namespace (and not attached):
>
> [1] affy_1.26.1           affyio_1.16.0         gdata_2.8.0
>
> [4] gplots_2.8.0          gtools_2.6.2          preprocessCore_1.10.0
>
>
>
>
>
>
>
>
>
> Analysis 2
>
>
>
> R version 2.11.0 (2010-04-22)
>
> Copyright (C) 2010 The R Foundation for Statistical Computing
>
> ISBN 3-900051-07-0
>
>
>
> R is free software and comes with ABSOLUTELY NO WARRANTY.
>
> You are welcome to redistribute it under certain conditions.
>
> Type 'license()' or 'licence()' for distribution details.
>
>
>
>   Natural language support but running in an English locale
>
>
>
> R is a collaborative project with many contributors.
>
> Type 'contributors()' for more information and
>
> 'citation()' on how to cite R or R packages in publications.
>
>
>
> Type 'demo()' for some demos, 'help()' for on-line help, or
>
> 'help.start()' for an HTML browser interface to help.
>
> Type 'q()' to quit R.
>
>
>
> [Previously saved workspace restored]
>
>
>
>> library(HTqPCR)
>
> Loading required package: Biobase
>
>
>
> Welcome to Bioconductor
>
>
>
>   Vignettes contain introductory material. To view, type
>
>   'openVignette()'. To cite Bioconductor, see
>
>   'citation("Biobase")' and for packages 'citation(pkgname)'.
>
>
>
> Loading required package: RColorBrewer
>
> Loading required package: limma
>
>> library(limma)
>
>> library(RColorBrewer)
>
>> exPath <- "F:/HTqPCR/tlda_new_all"
>
>> exFiles <- read.delim(file.path(exPath, "files.txt"))
>
>> raw <- readCtData(files=exFiles$File[c(1:99)], path=exPath, n.features =
> 48, flag = 4, feature = 6, type = 7, position = 3, Ct = 8, header = FALSE,
> SDS = FALSE, n.data = 1, na.value = 40)
>
>> raw
>
> An object of class "qPCRset"
>
> Size:  48 features, 99 samples
>
> Feature types:           Endogenous Control, Target
>
> Feature names:           CCNF-Hs00171049_m1 RBL2-Hs00180562_m1
> CCND1-Hs00277039_m1 ...
>
> Feature classes:
>
> Feature categories:      OK, Undetermined
>
> Sample names:            T1 T2 T3 ...
>
>> path <- "F:/HTqPCR/tlda_new_all"
>
>> (read.delim(file.path(path, "files.txt")))
>
>       File Treatment
>
> 1   T1.txt     Tumor
>
> 2   T2.txt     Tumor
>
> 3   T3.txt     Tumor
>
> 4   T4.txt     Tumor
>
> 5   T5.txt     Tumor
>
> 6   N1.txt    Normal
>
> 7   T6.txt    Normal
>
> 8   T7.txt    Normal
>
> 9   T8.txt     Tumor
>
> 10  T9.txt     Tumor
>
> 11 T10.txt     Tumor
>
> 12 T11.txt     Tumor
>
> 13  N2.txt    Normal
>
> 14 T12.txt     Tumor
>
> 15 T13.txt     Tumor
>
> 16  N3.txt    Normal
>
> 17 T14.txt     Tumor
>
> 18  N4.txt    Normal
>
> 19 T15.txt     Tumor
>
> 20 T16.txt     Tumor
>
> 21 T17.txt     Tumor
>
> 22  N5.txt    Normal
>
> 23 T18.txt     Tumor
>
> 24  N6.txt    Normal
>
> 25  N7.txt    Normal
>
> 26 T19.txt     Tumor
>
> 27 T20.txt     Tumor
>
> 28  N8.txt    Normal
>
> 29 T21.txt     Tumor
>
> 30 T22.txt     Tumor
>
> 31 T23.txt     Tumor
>
> 32  N9.txt    Normal
>
> 33 T24.txt     Tumor
>
> 34 T25.txt     Tumor
>
> 35 T26.txt     Tumor
>
> 36 T27.txt     Tumor
>
> 37 T28.txt     Tumor
>
> 38 T29.txt     Tumor
>
> 39 T30.txt     Tumor
>
> 40 T31.txt     Tumor
>
> 41 T32.txt     Tumor
>
> 42 T33.txt     Tumor
>
> 43 T34.txt     Tumor
>
> 44 T35.txt     Tumor
>
> 45 T36.txt     Tumor
>
> 46 T37.txt     Tumor
>
> 47 T38.txt     Tumor
>
> 48 N10.txt    Normal
>
> 49 T39.txt     Tumor
>
> 50 T40.txt     Tumor
>
> 51 T41.txt     Tumor
>
> 52 N11.txt    Normal
>
> 53 T42.txt     Tumor
>
> 54 T43.txt     Tumor
>
> 55 T44.txt     Tumor
>
> 56 T45.txt     Tumor
>
> 57 T46.txt     Tumor
>
> 58 T47.txt     Tumor
>
> 59 T48.txt     Tumor
>
> 60 T49.txt     Tumor
>
> 61 N12.txt    Normal
>
> 62 T50.txt     Tumor
>
> 63 T51.txt     Tumor
>
> 64 N13.txt    Normal
>
> 65 T52.txt     Tumor
>
> 66 T53.txt     Tumor
>
> 67 T54.txt     Tumor
>
> 68 N14.txt    Normal
>
> 69 T55.txt     Tumor
>
> 70 N15.txt    Normal
>
> 71 T56.txt     Tumor
>
> 72 N16.txt    Normal
>
> 73 T57.txt     Tumor
>
> 74 T58.txt     Tumor
>
> 75 T59.txt     Tumor
>
> 76 N17.txt    Normal
>
> 77 T60.txt     Tumor
>
> 78 N18.txt    Normal
>
> 79 T61.txt     Tumor
>
> 80 T62.txt     Tumor
>
> 81 T63.txt     Tumor
>
> 82 T64.txt     Tumor
>
> 83 T65.txt     Tumor
>
> 84 N19.txt    Normal
>
> 85 T66.txt     Tumor
>
> 86 N20.txt    Normal
>
> 87 T67.txt     Tumor
>
> 88 N21.txt    Normal
>
> 89 T68.txt     Tumor
>
> 90 N22.txt    Normal
>
> 91 T69.txt     Tumor
>
> 92 N23.txt    Normal
>
> 93 T70.txt     Tumor
>
> 94 T71.txt     Tumor
>
> 95 T72.txt     Tumor
>
> 96 T73.txt     Tumor
>
> 97 T74.txt     Tumor
>
> 98 T75.txt     Tumor
>
> 99 N24.txt    Normal
>
>> raw.cat <- setCategory(raw, Ct.max = 38, Ct.min = 5, replicates = TRUE,
> quantile = NULL, groups, flag = TRUE, flag.out = "Failed", verbose = TRUE,
> plot = FALSE)
>
> Categories after Ct.max and Ct.min filtering:
>
>              T1 T2 T3 T4 T5 N1 T6 T7 T8 T9 T10 T11 N2 T12 T13 N3 T14 N4
> T15
> T16
>
> OK           48 48 48 48 48 48 48 48 46 48  48  48 48  48  48 47  48 46
> 48
> 48
>
> Undetermined  0  0  0  0  0  0  0  0  2  0   0   0  0   0   0  1   0  2
> 0
> 0
>
>              T17 N5 T18 N6 N7 T19 T20 N8 T21 T22 T23 N9 T24 T25 T26 T27
> T28
> T29
>
> OK            48 48  48 48 48  48  48 48  44  48  45 48  48  48  48  48
> 48
> 48
>
> Undetermined   0  0   0  0  0   0   0  0   4   0   3  0   0   0   0   0
> 0
> 0
>
>              T30 T31 T32 T33 T34 T35 T36 T37 T38 N10 T39 T40 T41 N11 T42
> T43
>
> OK            48  48  48  48  48  48  48  48  48  48  48  48  48  48  48
> 48
>
> Undetermined   0   0   0   0   0   0   0   0   0   0   0   0   0   0   0
> 0
>
>              T44 T45 T46 T47 T48 T49 N12 T50 T51 N13 T52 T53 T54 N14 T55
> N15
>
> OK            48  48  48  47  48  48  47  48  48  48  48  48  48  48  48
> 48
>
> Undetermined   0   0   0   1   0   0   1   0   0   0   0   0   0   0   0
> 0
>
>              T56 N16 T57 T58 T59 N17 T60 N18 T61 T62 T63 T64 T65 N19 T66
> N20
>
> OK            48  48  48  48  48  43  48  48  48  48  48  48  48  48  48
> 48
>
> Undetermined   0   0   0   0   0   5   0   0   0   0   0   0   0   0   0
> 0
>
>              T67 N21 T68 N22 T69 N23 T70 T71 T72 T73 T74 T75 N24
>
> OK            48  47  48  48  34   3  33  21  47  47  46  46  48
>
> Undetermined   0   1   0   0  14  45  15  27   1   1   2   2   0
>
>> q.norm <- normalizeCtData(raw.cat, norm="quantile")
>
>> qDE.ttest <- ttestCtData(q.norm[,1:99], groups=files$Treatment[1:99],
>
> + calibrator="Normal")
>
>> qDE.ttest[1:48,]
>
>                    genes feature.pos      t.test      p.value  adj.p.value
>
> 6    CCNB1-Hs00259126_m1         I23  6.20160729 7.048712e-08 3.383382e-06
>
> 35   CHEK1-Hs00176236_m1          I4  5.48408184 2.514510e-06 6.034823e-05
>
> 46    TGFA-Hs00608187_m1         J22  5.21382975 4.743489e-06 7.589583e-05
>
> 4     BCL2-Hs00608023_m1         J24 -4.65741536 2.384561e-05 2.861473e-04
>
> 47    TP53-Hs00153349_m1          I5 -4.34020615 5.356469e-05 5.142210e-04
>
> 25    CDK6-Hs00608037_m1         I13  4.15810415 9.191490e-05 7.092438e-04
>
> 33  CDKN2C-Hs00176227_m1         J15 -4.24782850 1.034314e-04 7.092438e-04
>
> 16    CCNH-Hs00236923_m1         I18 -3.88720229 2.996959e-04 1.798176e-03
>
> 9    CCND1-Hs00277039_m1          I3 -3.90103610 3.929839e-04 2.095914e-03
>
> 18    CDC2-Hs00364293_m1         J21  3.68357070 6.744105e-04 3.237170e-03
>
> 12   CCNE1-Hs00233356_m1         J11  3.61548837 8.202665e-04 3.579345e-03
>
> 29  CDKN1B-Hs00153277_m1         I20 -3.58651890 9.334087e-04 3.733635e-03
>
> 30  CDKN1C-Hs00175938_m1         J17 -3.46267415 1.165720e-03 4.304198e-03
>
> 45    RBL2-Hs00180562_m1          I2 -3.33108991 1.570514e-03 5.384621e-03
>
> 39 GADD45A-Hs00169255_m1          J4 -3.27745675 2.135930e-03 6.834977e-03
>
> 41   MKI67-Hs00606991_m1         I19  3.17081035 2.819846e-03 8.459537e-03
>
> 7    CCNB2-Hs00270424_m1         J19  2.98768802 5.280899e-03 1.491077e-02
>
> 27    CDK8-Hs00176209_m1         I14 -2.78622102 8.490709e-03 2.264189e-02
>
> 10   CCND2-Hs00277041_m1          J1  2.52336007 1.446031e-02 3.653131e-02
>
> 2      ATM-Hs00175892_m1         J23 -2.49985908 1.640807e-02 3.937937e-02
>
> 19   CDC20-Hs00415851_g1         J20  2.42245447 2.076797e-02 4.591003e-02
>
> 14    CCNF-Hs00171049_m1          I1  2.42086969 2.104210e-02 4.591003e-02
>
> 3      ATR-Hs00169878_m1         J16 -2.32874362 2.407737e-02 5.024842e-02
>
> 34  CDKN2D-Hs00176481_m1         J10 -2.19062609 3.304834e-02 6.609668e-02
>
> 17    CCNK-Hs00395018_m1          J2 -2.18165397 3.542196e-02 6.801016e-02
>
> 48 TP53BP2-Hs00610488_m1         I17 -1.92606707 6.038405e-02 1.114783e-01
>
> 13   CCNE2-Hs00180319_m1         J18  1.85171704 7.355627e-02 1.307667e-01
>
> 5    CCNA1-Hs00171105_m1         I22  1.68689949 9.901674e-02 1.697430e-01
>
> 31  CDKN2A-Hs00233365_m1          J9  1.53778250 1.301844e-01 2.091751e-01
>
> 40    MDM2-Hs00242813_m1         J14 -1.54259099 1.307344e-01 2.091751e-01
>
> 21   CDC34-Hs00362082_m1          I9 -1.49644686 1.444121e-01 2.236059e-01
>
> 26    CDK7-Hs00757090_g1          J8 -1.46834115 1.491629e-01 2.237444e-01
>
> 37    E2F2-Hs00231667_m1         J12 -1.34939756 1.841182e-01 2.678083e-01
>
> 1      18S-Hs99999901_s1         I11 -1.22892059 2.246587e-01 3.171652e-01
>
> 11   CCND3-Hs00426901_m1         I15  1.19278926 2.393266e-01 3.282194e-01
>
> 44    RBL1-Hs00765707_m1          J6 -1.09090637 2.849470e-01 3.799293e-01
>
> 43     RB1-Hs00153108_m1         I24  0.94267649 3.498142e-01 4.538131e-01
>
> 32  CDKN2B-Hs00793225_m1         I16  0.92879772 3.593685e-01 4.539392e-01
>
> 42    PIN1-Hs00749260_s1          I7  0.82347162 4.139756e-01 5.095084e-01
>
> 36    E2F1-Hs00153451_m1         J13  0.49857447 6.211263e-01 7.349228e-01
>
> 22    CDK2-Hs00608082_m1          J7  0.48826165 6.277465e-01 7.349228e-01
>
> 23    CDK4-Hs00364847_m1         I10 -0.31376143 7.554674e-01 8.614452e-01
>
> 15   CCNG2-Hs00171119_m1         I21  0.29249852 7.717113e-01 8.614452e-01
>
> 28  CDKN1A-Hs00355782_m1          J3 -0.25546174 7.999394e-01 8.634675e-01
>
> 24    CDK5-Hs00358991_g1          J5  0.24250526 8.095008e-01 8.634675e-01
>
> 38    EGFR-Hs00193306_m1          I6 -0.20599698 8.373903e-01 8.737986e-01
>
> 8     CCNC-Hs00193177_m1          I8 -0.16344607 8.712155e-01 8.897520e-01
>
> 20  CDC25C-Hs00156411_m1         I12 -0.06573621 9.479508e-01 9.479508e-01
>
>           ddCt        FC meanCalibrator meanTarget categoryTarget
>
> 6  -1.07648601 2.1088932       28.95070   27.87422   Undetermined
>
> 35 -1.06811289 2.0966890       29.17518   28.10707   Undetermined
>
> 46 -1.49585130 2.8203052       28.35982   26.86397   Undetermined
>
> 4   1.58320841 0.3337389       28.55932   30.14253   Undetermined
>
> 47  0.76174256 0.5897835       27.28123   28.04298             OK
>
> 25 -0.49744752 1.4117137       27.19791   26.70046   Undetermined
>
> 33  1.12458260 0.4586347       29.01792   30.14251   Undetermined
>
> 16  0.49405366 0.7100273       27.59160   28.08565             OK
>
> 9   1.21875736 0.4296526       25.66984   26.88860             OK
>
> 18 -0.65334131 1.5728066       28.77853   28.12519   Undetermined
>
> 12 -0.90777004 1.8761433       30.28242   29.37465   Undetermined
>
> 29  0.75834453 0.5911743       25.70694   26.46529             OK
>
> 30  1.93646182 0.2612564       26.09796   28.03443             OK
>
> 45  0.48721017 0.7134033       27.09761   27.58482             OK
>
> 39  0.66461173 0.6308585       27.72870   28.39331   Undetermined
>
> 41 -0.96027455 1.9456801       28.29245   27.33217   Undetermined
>
> 7  -0.93770737 1.9154819       28.26303   27.32532   Undetermined
>
> 27  0.45887090 0.7275554       27.64381   28.10269   Undetermined
>
> 10 -0.45803273 1.3736674       26.74833   26.29030             OK
>
> 2   0.52684258 0.6940721       29.00257   29.52941   Undetermined
>
> 19 -0.92813803 1.9028186       27.69299   26.76485   Undetermined
>
> 14          NA        NA             NA   27.35398   Undetermined
>
> 3   0.35954577 0.7794099       28.23866   28.59821   Undetermined
>
> 34  0.36531112 0.7763014       28.26844   28.63375             OK
>
> 17  0.25381909 0.8386733       26.75291   27.00673   Undetermined
>
> 48  0.25068667 0.8404963       27.62105   27.87173   Undetermined
>
> 13 -0.41472318 1.3330429       30.47038   30.05566   Undetermined
>
> 5           NA        NA             NA         NA   Undetermined
>
> 31 -0.79234046 1.7318818       27.62496   26.83262   Undetermined
>
> 40  0.34543993 0.7870679       26.05771   26.40315   Undetermined
>
> 21  0.29287706 0.8162726       26.50089   26.79377             OK
>
> 26  0.22446161 0.8559144       27.93111   28.15557   Undetermined
>
> 37  0.50080229 0.7067137       28.44610   28.94690   Undetermined
>
> 1   1.04957648 0.4831100        9.89481   10.94439             OK
>
> 11 -0.22504377 1.1688127       26.96884   26.74380   Undetermined
>
> 44  0.29970271 0.8124198       28.77934   29.07904   Undetermined
>
> 43 -0.16428205 1.1206083       27.49565   27.33137   Undetermined
>
> 32          NA        NA       28.34727         NA   Undetermined
>
> 42          NA        NA       25.12208         NA             OK
>
> 36 -0.13237465 1.0960964       28.99034   28.85797   Undetermined
>
> 22 -0.08383105 1.0598287       29.05245   28.96862   Undetermined
>
> 23  0.13964048 0.9077453       25.07292   25.21256             OK
>
> 15 -0.05127164 1.0361778       27.77177   27.72050   Undetermined
>
> 28  0.15128081 0.9004507       22.74329   22.89457             OK
>
> 24 -0.04078961 1.0286767       28.16160   28.12081   Undetermined
>
> 38  0.04184529 0.9714117       26.29932   26.34117   Undetermined
>
> 8   0.02687468 0.9815443       27.06587   27.09275             OK
>
> 20  0.01922018 0.9867659       32.24171   32.26093   Undetermined
>
>    categoryCalibrator
>
> 6        Undetermined
>
> 35       Undetermined
>
> 46       Undetermined
>
> 4        Undetermined
>
> 47       Undetermined
>
> 25       Undetermined
>
> 33       Undetermined
>
> 16       Undetermined
>
> 9        Undetermined
>
> 18       Undetermined
>
> 12       Undetermined
>
> 29       Undetermined
>
> 30       Undetermined
>
> 45       Undetermined
>
> 39       Undetermined
>
> 41       Undetermined
>
> 7        Undetermined
>
> 27       Undetermined
>
> 10       Undetermined
>
> 2        Undetermined
>
> 19       Undetermined
>
> 14       Undetermined
>
> 3        Undetermined
>
> 34       Undetermined
>
> 17       Undetermined
>
> 48       Undetermined
>
> 13       Undetermined
>
> 5        Undetermined
>
> 31       Undetermined
>
> 40       Undetermined
>
> 21       Undetermined
>
> 26       Undetermined
>
> 37       Undetermined
>
> 1                  OK
>
> 11       Undetermined
>
> 44       Undetermined
>
> 43       Undetermined
>
> 32       Undetermined
>
> 42                 OK
>
> 36       Undetermined
>
> 22       Undetermined
>
> 23       Undetermined
>
> 15       Undetermined
>
> 28       Undetermined
>
> 24       Undetermined
>
> 38       Undetermined
>
> 8        Undetermined
>
> 20       Undetermined
>
>> sessionInfo()
>
> R version 2.11.0 (2010-04-22)
>
> x86_64-pc-mingw32
>
>
>
> locale:
>
> [1] LC_COLLATE=English_India.1252  LC_CTYPE=English_India.1252
>
> [3] LC_MONETARY=English_India.1252 LC_NUMERIC=C
>
> [5] LC_TIME=English_India.1252
>
>
>
> attached base packages:
>
> [1] stats     graphics  grDevices utils     datasets  methods   base
>
>
>
> other attached packages:
>
> [1] HTqPCR_1.2.0       limma_3.4.3        RColorBrewer_1.0-2 Biobase_2.8.0
>
>
>
>
> loaded via a namespace (and not attached):
>
> [1] affy_1.26.1           affyio_1.16.0         gdata_2.8.0
>
> [4] gplots_2.8.0          gtools_2.6.2          preprocessCore_1.10.0
>
>>
>
>
> --
> Deepak Roshan V G
> Laboratory Of Cell Cycle Regulation  &   Molecular Oncology
> Division of Cancer Research
> Regional Cancer Centre
> Thiruvananthapuram
> Kerala, India 695 011
>



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