can't read in files

[Christoph Ruehlemann]

Hey all,

Something's gone wrong all of a sudden: I can't read in files into RStudio anymore. Here's the error message:

> top<-read.table("/Users/chris/Documents/R/Txt/Turn-openers.txt", header=T, quote="", sep="\t", fill=F)
Error in if (!header) rlabp <- FALSE :
  missing value where TRUE/FALSE needed
In addition: Warning messages:
1: In Ops.factor(left) : ‘!’ not meaningful for factors
2: In Ops.factor(left) : ‘!’ not meaningful for factors
3: In Ops.factor(left) : ‘!’ not meaningful for factors
4: In Ops.factor(left) : ‘!’ not meaningful for factors
5: In if (!header) rlabp <- FALSE :
  the condition has length > 1 and only the first element will be used

Help appreciated

Cheers

Chris

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https://www.uni-marburg.de/fb10/iaa/institut/personal/ruehlemann

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[Stefan Th. Gries]

Hard to say without seeing the input file and when you say "can't read in files _into RStudio_ anymore", does that mean you CAN read that file _into R_ (R GUI)?

Best,
STG
--
Stefan Th. Gries
----------------------------------
Univ. of California, Santa Barbara
http://tinyurl.com/stgries
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[Susie Kim]

Perhaps you have a vector or any type of data previously set as "T" and therefore inducing the error with the header (i.e., "header = T")?

[Alex Perrone]

Yeah, it looks like it can't parse "header=T", and may be thinking that T is a factor ("! not meaningful for factors), or possibly also as Susie said, a vector (condition has length > 1 and only the first element will be used). No clue why. Try:

top<-read.table("/Users/chris/Documents/R/Txt/Turn-openers.txt", header=TRUE, quote="", sep="\t", fill=F)

Also, double-check that you actually have a header -- a row of column names -- in that file. If you don't, or if the column names are screwy but the data looks ok and you delete the first line of the text file, take out the header just to see if that works:

top<-read.table("/Users/chris/Documents/R/Txt/Turn-openers.txt", header=FALSE, quote="", sep="\t", fill=F)

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[Earl Brown]

Perhaps try a function from the readr package:
http://readr.tidyverse.org/reference/read_delim.html

[Christoph Ruehlemann]

Thanks a lot to everybody who got on in on this with good advice.

I've resolved the issue by now (guess how: by quitting R studio and signing on again!)

I guess the error was caused by me uninstalling some java (on which, perhaps, R studio is running) and replacing it with another java without having closed R Studio.

Many thanks again

Chris

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