Hi R,
I have two columns of date in a CSV file in the below format
29-Dec-06 25-Jan-07
29-Dec-06 25-Jan-07
29-Dec-06 25-Jan-07
2-Jan-07 25-Jan-07
2-Jan-07 25-Jan-07
2-Jan-07 25-Jan-07
I read in R using dat<-read.csv("Z:\\data.csv").
> class(dat[,1])
[1] "factor"
So I use
dat[,1]=as.Date(as.character(dat[,1]),"%d-%b-%YY")
> class(dat[,1])
[1] "Date"
But when I do
> fix(dat)
Warning: class discarded from column 'Date'
Also
> dat[1,1]
[1] NA
My task is to compute the number of trading days between the two dates
in col A and Col B. Any help would be appreciated!
Thank you,
Ravi Shankar S
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