[R] create dataframe using structure ()

arun smartpink111 at yahoo.com
Sat May 10 20:16:01 CEST 2014 


Hi,

-----------------------------------------------
2767.493803,4796.33016,12292.93705,3864.657567,9380.673835,14886.44683,8457.88646,26050.47191))),#####
  .Names = c("row", "stimulation", "positivity", "group", "copy"),
row.names = c(NA, -120L),  class = "data.frame")

 str(my.data)
'data.frame':    120 obs. of  5 variables:
 $ row        : int  1 2 3 4 5 6 7 8 9 10 ...
 $ stimulation: Factor w/ 8 levels "a","b","c","d",..: 1 2 3 4 5 6 7 8 1 2 ...
 $ positivity : num  0 0 0 0 0 0 0 0 0 0 ...
 $ group      : num  0 0 0 0 0 0 0 0 1 1 ...
 $ copy       : num  192.1 183.6 53.5 83.6 69.6 ...


A.K.


On Saturday, May 10, 2014 2:05 PM, Luigi Marongiu <marongiu.luigi at gmail.com> wrote:
Hello,
I have tried to apply this approach -- which worked for this example
-- to a larger dataset. Although I have not received error messages,
the variable I have set (my.data) is empty.
Do you have any tip about this?
Many thanks
Luigi

# code::
my.data<-structure(list(
  column_1 = 1:120,
  column_2 = structure(c(
    1,2,3,4,5,6,7,8,
    1,2,3,4,5,6,7,8,
    1,2,3,4,5,6,7,8,
    1,2,3,4,5,6,7,8,
    1,2,3,4,5,6,7,8,
    1,2,3,4,5,6,7,8,
    1,2,3,4,5,6,7,8,
    1,2,3,4,5,6,7,8,
    1,2,3,4,5,6,7,8,
    1,2,3,4,5,6,7,8,
    1,2,3,4,5,6,7,8,
    1,2,3,4,5,6,7,8,
    1,2,3,4,5,6,7,8,
    1,2,3,4,5,6,7,8,
    1,2,3,4,5,6,7,8),
    .Label = c("a", "b", "c", "d", "e", "f", "g", "h"), class = "factor"),
  column_3 = structure(c(
    0,0,0,0,0,0,0,0,
    0,0,0,0,0,0,0,0,
    0,0,0,0,0,0,0,0,
    0,0,0,0,0,0,0,0,
    0,0,0,0,0,0,0,0,
    0,0,0,0,0,0,0,0,
    0,0,0,0,0,0,0,0,
    1,1,1,1,1,1,1,1,
    1,1,1,1,1,1,1,1,
    1,1,1,1,1,1,1,1,
    1,1,1,1,1,1,1,1,
    1,1,1,1,1,1,1,1,
    1,1,1,1,1,1,1,1,
    1,1,1,1,1,1,1,1,
    0,0,0,0,0,0,0,0)),
  column_4 = structure(c(
    0,  0,  0,  0,    0,    0,    0,    0,
    1,    1,    1,    1,    1,    1,    1,    1,
    0,  0,    0,    0,    0,    0,    0,    0,
    0,  0,    0,    0,    0,    0,    0,    0,
    1,  1,    1,    1,    1,    1,    1,    1,
    1,  1,    1,    1,    1,    1,    1,    1,
    0,  0,    0,    0,    0,    0,    0,    0,
    0,  0,    0,    0,    0,    0,    0,    0,
    1,  1,    1,    1,    1,    1,    1,    1,
    1,  1,    1,    1,    1,    1,    1,    1,
    0,  0,    0,    0,    0,    0,    0,    0,
    1,  1,    1,    1,    1,    1,    1,    1,
    1,  1,    1,    1,    1,    1,    1,    1,
    0,  0,    0,    0,    0,    0,    0,    0,
    0,  0,    0,    0,    0,    0,    0,    0)),
  column_5 = structure(c(
    192.0519108,183.6403531,53.46798757,83.60638077,69.60749873,159.4706861,256.8765622,499.2899303,
    2170.799076,1411.349719,2759.472348,2098.973397,2164.739515,1288.676574,1611.486543,6205.229575,
    870.7424981,465.9967135,191.8962375,864.0937485,2962.693675,1289.259137,2418.651212,7345.712517,
    0,168.1198893,674.4342961,101.1575401,47.81596237,0,0,1420.793922,
    142.6871331,5.466468742,291.9564635,80.73914133,73.02239621,64.47806871,144.3543635,3167.959757,
    3164.748333,1092.634557,28733.20269,1207.87783,729.6090973,151.8706088,241.2466141,9600.963594,
    1411.718287,12569.96285,1143.254476,6317.378481,16542.27718,79.68025792,1958.495138,7224.503437,
    208.4382941,69.48609769,656.691151,0.499017582,7114.910926,187.6296174,41.73980805,8930.784541,
    4.276752185,0.432300363,60.89228665,1.103924786,0.490686366,1.812993239,7.264531581,1518.610307,
    2172.051528,595.8513744,17141.84336,589.6565971,1340.287628,117.350942,593.7034054,24043.61463,
    0,81.83292179,1539.864321,36.41722958,8.385131047,161.7647376,65.21615696,7265.573875,
    97.84753179,154.051827,0.613835842,10.06138851,45.04879285,176.8284258,18795.75462,30676.769,
    5780.34957,944.2200834,2398.235596,1083.393165,2541.714557,1251.670895,1547.178549,1792.679176,
    3067.988416,8117.210173,23676.02226,8251.937547,17360.80494,18563.61561,16941.865,31453.96708,
    2767.493803,4796.33016,12292.93705,3864.657567,9380.673835,14886.44683,8457.88646,26050.47191)),
  .Names = c("row", "stimulation", "positivity", "group", "copy"),
row.names = c(NA, -120L)),  class = "data.frame")

attach(my.data)

# results:
> my.data
[1] column_1  column_2  column_3  column_4  column_5  .Names    row.names
<0 rows> (or 0-length row.names)

On Thu, Mar 13, 2014 at 7:29 PM, Rui Barradas <ruipbarradas at sapo.pt> wrote:
> Hello,
>
> You're misplacing one close parenthesis. See the commented lines below.
>
>
>
> structure(list(
> column_1 = 1:32,
> column_2 = structure(c(1, 2, 3, 4, 5, 6, 7, 8,
> 1, 2, 3, 4, 5, 6, 7, 8,
> 1, 2, 3, 4, 5, 6, 7, 8,
> 1, 2, 3, 4, 5, 6, 7, 8),
> .Label =
> c("Unstimulated", "ESAT6", "CFP10", "Rv3615c", "Rv2654", "Rv3879",
> "Rv3873", "PHA"),
> class = "factor"),
> column_3 =
> structure(c(1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3,
> 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4), .Label = c("bd", "2m", "1m",
> "0.5m"), class = "factor"),
> column_4 =
> c(71.62097178, 2.892223468, 144.8618621, 40.90079262, 37.0516856,
> 32.78206822, 72.44424152, 1512.516293, 3164.748333, 1092.634557,
> 28733.20269, 1207.87783, 729.6090973, 151.8706088, 241.2466141,
> 9600.963594, 682.865522, 5869.375226, 554.8924896, 2982.759858,
> 7690.028092, 40.37298719, 942.3549279, 3403.679967, 103.9862389,
> 35.28562613, 321.5985377, 0.274424607, 3352.874906, 93.76421187,
> 21.3709382, 4193.183281)),  # close 2 )) here
> .Names = c("row", "stimulation", "type", "copy"), row.names = c(NA,
> -32L), class = "data.frame")  # and only one ) after df
>
>
> Hope this helps,
>
> Rui Barradas
>
> Em 13-03-2014 18:58, Luigi Marongiu escreveu:
>>
>> dear all,
>> I have tried to create a dataframe using the structure() function, but it
>> did not really work. In column 1 i have the row number, in column 2 and 3
>> factors (8 and 4 levels respectively) and in column 4 the actual data.
>> any clue on what went wrong?
>> best regards
>> luigi
>>
>> my.data<-structure(list(
>> column_1 = 1:32,
>> column_2 = structure(c(1, 2, 3, 4, 5, 6, 7, 8,
>> 1, 2, 3, 4, 5, 6, 7, 8,
>> 1, 2, 3, 4, 5, 6, 7, 8,
>> 1, 2, 3, 4, 5, 6, 7, 8),
>> .Label =
>> c("Unstimulated", "ESAT6", "CFP10", "Rv3615c", "Rv2654", "Rv3879",
>> "Rv3873", "PHA"),
>> class = "factor"),
>> column_3 =
>> structure(c(1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3,
>> 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4), .Label = c("bd", "2m", "1m",
>> "0.5m"), class = "factor"),
>> column_4 =
>> c(71.62097178, 2.892223468, 144.8618621, 40.90079262, 37.0516856,
>> 32.78206822, 72.44424152, 1512.516293, 3164.748333, 1092.634557,
>> 28733.20269, 1207.87783, 729.6090973, 151.8706088, 241.2466141,
>> 9600.963594, 682.865522, 5869.375226, 554.8924896, 2982.759858,
>> 7690.028092, 40.37298719, 942.3549279, 3403.679967, 103.9862389,
>> 35.28562613, 321.5985377, 0.274424607, 3352.874906, 93.76421187,
>> 21.3709382, 4193.183281),
>> .Names = c("row", "stimulation", "type", "copy"), class = "data.frame"))
>> attach(my.data)
>>
>>         [[alternative HTML version deleted]]
>>
>> ______________________________________________
>> R-help at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>

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