Hi,
I'm new to R and data.table and having some difficulties with a certain
function that I wrote.
the function code:
freq_per = function(data,byWhat,month){
for (i in 1:length(month)){
data = data.table(data)
data[,percent :=sum(freq),by = byWhat]
data[,percent := (freq/percent)*100]
data = data.frame(data)
data$percent = format(round(data$percent),nsmall = 2)
}
data
}
I have tried to call the function with freq_per(data,list(BlaBla),month)
and get the error message from the topic.
I have tried to create a global variable with byWhat = list(BlaBla), it
didn't work because the object 'BlaBla' not found.
I also tried to use keyby instead of by with c(colnames(data)[1]), but the
results that I got are not right.
anybody has an idea how to overcome the problem?
Thanks.
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