Dear Jim,

Thanks a lot! The size of the text file is 189,588,541 bytes.
It consists of 238305 rows (including the header) and
50 columns (the first column is for ID and the rest for 49 samples).

The first row looks like:

"ID"
AIRNS_p_Sty5_Mapping250K_Sty_A09_50156.cel
AIRNS_p_Sty5_Mapping250K_Sty_A11_50188.cel
AIRNS_p_Sty5_Mapping250K_Sty_A12_50204.cel
AIRNS_p_Sty5_Mapping250K_Sty_B09_50158.cel
AIRNS_p_Sty5_Mapping250K_Sty_C01_50032.cel
AIRNS_p_Sty5_Mapping250K_Sty_C12_50208.cel
AIRNS_p_Sty5_Mapping250K_Sty_D03_50066.cel
AIRNS_p_Sty5_Mapping250K_Sty_D08_50146.cel
AIRNS_p_Sty5_Mapping250K_Sty_F03_50070.cel
AIRNS_p_Sty5_Mapping250K_Sty_F12_50214.cel
AIRNS_p_Sty5_Mapping250K_Sty_G09_50168.cel
DOLCE_p_Sty7_Mapping250K_Sty_B04_53892.cel
DOLCE_p_Sty7_Mapping250K_Sty_B06_53924.cel
DOLCE_p_Sty7_Mapping250K_Sty_C05_53910.cel
DOLCE_p_Sty7_Mapping250K_Sty_C10_53990.cel
DOLCE_p_Sty7_Mapping250K_Sty_D05_53912.cel
DOLCE_p_Sty7_Mapping250K_Sty_E01_53850.cel
DOLCE_p_Sty7_Mapping250K_Sty_G12_54030.cel
DOLCE_p_Sty7_Mapping250K_Sty_H06_53936.cel
DOLCE_p_Sty7_Mapping250K_Sty_H08_53968.cel
DOLCE_p_Sty7_Mapping250K_Sty_H11_54016.cel
DOLCE_p_Sty7_Mapping250K_Sty_H12_54032.cel
GUSTO_p_Sty20_Mapping250K_Sty_C08_81736.cel
GUSTO_p_Sty20_Mapping250K_Sty_E03_81660.cel
GUSTO_p_Sty20_Mapping250K_Sty_H02_81650.cel
HEWED_p_250KSty_Plate_20060123_GOOD_B01_46246.cel
HEWED_p_250KSty_Plate_20060123_GOOD_C06_46328.cel
HEWED_p_250KSty_Plate_20060123_GOOD_F02_46270.cel
HEWED_p_250KSty_Plate_20060123_GOOD_G04_46304.cel
HOCUS_p_Sty4_Mapping250K_Sty_B05_55060.cel
HOCUS_p_Sty4_Mapping250K_Sty_B12_55172.cel
HOCUS_p_Sty4_Mapping250K_Sty_E05_55066.cel
SOARS_p_Sty23_Mapping250K_Sty_B07_89024.cel
SOARS_p_Sty23_Mapping250K_Sty_C01_88930.cel
SOARS_p_Sty23_Mapping250K_Sty_C11_89090.cel
SOARS_p_Sty23_Mapping250K_Sty_F07_89032.cel
SOARS_p_Sty23_Mapping250K_Sty_H08_89052.cel
SOARS_p_Sty23_Mapping250K_Sty_H10_89084.cel
VINOS_p_Sty8_Mapping250K_Sty_A04_54082.cel
VINOS_p_Sty8_Mapping250K_Sty_A07_54130.cel
VINOS_p_Sty8_Mapping250K_Sty_B08_54148.cel
VINOS_p_Sty8_Mapping250K_Sty_D01_54040.cel
VINOS_p_Sty8_Mapping250K_Sty_D05_54104.cel
VINOS_p_Sty8_Mapping250K_Sty_E04_54090.cel
VINOS_p_Sty8_Mapping250K_Sty_E12_54218.cel
VINOS_p_Sty8_Mapping250K_Sty_G01_54046.cel
VINOS_p_Sty8_Mapping250K_Sty_G12_54222.cel
VOLTS_p_Sty9_Mapping250K_Sty_G09_57916.cel
VOLTS_p_Sty9_Mapping250K_Sty_H12_57966.cel


and the second row looks like:

"SNP_A-1780271"    1.8564200401306    1.5095599889755    1.7315399646759
1.530769944191    1.6576000452042    1.474179983139    2.1564099788666
1.775720000267     1.5979499816895    2.1641499996185    1.980849981308
2.180370092392    1.8782299757004    2.1485500335693    1.5325000286102
1.7232999801636    2.2281200885773    1.9381999969482    1.8546999692917
2.1590900421143     2.1928400993347    2.0253200531006    2.6680200099945
2.7435901165009    2.0804998874664    3.2142300605774    2.1001501083374
2.147579908371    3.5244200229645    1.374480009079    1.6613099575043
3.1606800556183     2.0917000770569    1.8727999925613    1.8952000141144
1.813570022583    1.8180899620056    2.2553699016571    1.9273999929428
1.6766400337219    1.3424600362778    1.5666999816895    1.7180800437927
1.9548699855804     1.4444999694824    2.2242999076843    1.7591500282288
2.0480198860168    2.638689994812

Thanks a lot!

Sincerely,

Alex


On 6/6/07, jim holtman <jholtman@gmail.com> wrote:
>
> It would be useful if you could post the first couple of rows of the data
> so we can see what it looks like.
>
> On 6/6/07, ssls sddd <ssls.sddd@gmail.com > wrote:
> >
> > Dear list,
> >
> > I need to read a big txt file (around 130Mb; 23800 rows and 49 columns)
> > for downstream clustering analysis.
> >
> > I first used "Tumor <- read.table("Tumor.txt",header = TRUE,sep = "\t")"
> > but it took a long time and failed. However, it had no problem if I just
> > put
> > data of 3 columns.
> >
> > Is there any way which can load this big file?
> >
> > Thanks for any suggestions!
> >
> > Sincerely,
> >     Alex
> >
> >        [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > R-help@stat.math.ethz.ch 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.
> >
>
>
>
> --
> Jim Holtman
> Cincinnati, OH
> +1 513 646 9390
>
> What is the problem you are trying to solve?
>

	[[alternative HTML version deleted]]

