Dear R community,
I have a text file (test.txt) with different number of columns:
0610007P14Rik%%% Tcf19 Gtf2i 0610010O12Rik%%% Ivns1abp Etv6 1100001G20Rik%%%
Nmi 1500015O10Rik%%% Foxi1 Ascl3 Sirt3 1700003E16Rik%%% Ascl2 Ifnar2
1700028J19Rik%%% Musk Nfe2l3 1810011O10Rik%%% Ppp1r13b Bpnt1 Cdkn2c Foxc1 Sox10
Smarca2 1810019D21Rik%%% Asb8 1810037I17Rik%%% Zfp612 1810055G02Rik%%% Nkx2-3
Maged1 Runx1 Ugp2 Elk4 Spdef Tcf19 Isl2 Gtf2i Ctnnbl1 Tcea3 Ank2 Zfp612 Creb3l1
Nupr1 3632451O06Rik Creb3l4 Lass6
I wold like to read it into R using
> test=read.csv("test.txt",sep="\t",header=FALSE)
However, when I check the r object "test", I found that all the rows have 5
columns:
> test V1 V2 V3 V4 V51
> 0610007P14Rik%%% Tcf19 Gtf2i 2 0610010O12Rik%%%
> Ivns1abp Etv6 3 1100001G20Rik%%% Nmi
> 4 1500015O10Rik%%% Foxi1 Ascl3 Sirt3 5
> 1700003E16Rik%%% Ascl2 Ifnar2 6 1700028J19Rik%%%
> Musk Nfe2l3 7 1810011O10Rik%%% Ppp1r13b Bpnt1
> Cdkn2c Foxc18 Sox10 Smarca2 9
> 1810019D21Rik%%% Asb8 10 1810037I17Rik%%%
> Zfp612 11 1810055G02Rik%%% Nkx2-3 Maged1
> Runx1 Ugp212 Elk4 Spdef Tcf19 Isl2 Gtf2i13
> Ctnnbl1 Tcea3 Ank2 Zfp612 Creb3l114 Nupr1
> 3632451O06Rik Creb3l4 Lass6
Basically it breaks some rows into more than one rows. For example, row 7 in
the original record becomes two rows. Looks like the "test" always has 5
columns.
How does this happen? How should I fix it to make one record into one two in R
object?
Thank you very much!
Ace
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