[R] problem in reading data
zengzhenxing at gmail.com
Fri May 1 04:32:46 CEST 2009
The problem is that in this case, it seems that the blank is not replaced by
NA according to the information I quote. It is replaced by blank. I have
try: which(is.na(a$V4)), but get NA.
I want to delete the rows that have different format from others.
> In some cases the missing values have been replaced by NAs so you can look
> for those.
> On Thu, Apr 30, 2009 at 9:28 AM, tedzzx <zengzhenxing at gmail.com> wrote:
>> Dear R users
>> I am runing into a problem in reading data in R
>> This is the error information
>> Error in scan(file, what, nmax, sep, dec, quote, skip, nlines,
>> line 1653997 did not have 5 elements
>> It seams that some lines don't have equal variables. I want to try
>> > a<-read.table("tt_mb_200409.txt",as.is=T,fill=T)
>> > a[1653997,]
>> V1 V2 V3 V4 V5
>> 1653997 00992 2777010
>> But, I want to delect the rows that do not have the same number of
>> with others, how can I do this?
>> Many thanks
>> View this message in context:
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>> PLEASE do read the posting guide
>> and provide commented, minimal, self-contained, reproducible code.
> Jim Holtman
> Cincinnati, OH
> +1 513 646 9390
> What is the problem that you are trying to solve?
> [[alternative HTML version deleted]]
> R-help at r-project.org mailing list
> PLEASE do read the posting guide
> and provide commented, minimal, self-contained, reproducible code.
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