Error in read.table

Maybe you should set parameter "as.is" in read.csv to be false.

2013/7/11 Jannetta Steyn <jannetta at henning.org>

Hi Folks

I can't see what I have done wrong in this piece of code.

# Read filenames from csv file
files <- read.csv(file="files.csv",head=FALSE,sep=",")

# for each filename read the file
for (i in 1:length(files)) {
 # f becomes the next row inthe file
 f<-files[i,]
 # the header to be used for the graph is in column 2 of f
 head=f[2]
 par(mfrow=c(4,2))
 # the filename to be used is in column 1 of f
 con<-read.csv(file=f[1], header=TRUE, sep=',')
 tmp<-con$value2
 data<-normalize_js(tmp,-1,1)
 time<-con$time
 # run the waveform analyser
 waveformanalyser(data,time,head)
}

I get an error:
Error in read.table(file = file, header = header, sep = sep, quote = quote,
:
 'file' must be a character string or connection

When the error occurs f equals:

f

                                    V1     V2
1 ANA110915004A_3PERIOD_TmAvg-rdata.csv Pre-DA

and f[1] equals:

f[1]

                                    V1
1 ANA110915004A_3PERIOD_TmAvg-rdata.csv


Why won't it use the value of f[1] as a string for the file parameter in
the read.csv line?

All help would be apprecitated.
Regards
Jannetta



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