I may be doing this wrong! but I have a function which I have simplified a lot
below. I want to pass some 'field names' of a data-frame to the function for
it to then do some manipulation of.
Here's my code:
#build a simple dataset
mydataset = data.frame (
ages=c('40-49','40-49','40-49','30-39','50-59','50-59','60-69','50-59'), sex =
c("M","F","F","M","F","F","M","M"))
#build a simple function
myfunc <- function (categories) {
table (categories)
}
#call the function
myfunc (c(mydataset$ages, mydataset$sex))
===
My output I am getting is:
categories
1 2 3 4
5 7 3 1
But what I'm expecting is:
table (mydataset$ages, mydataset$sex)
F M
30-39 0 1
40-49 2 1
50-59 2 1
60-69 0 1
Calling the function as: myfunc ("mydataset$ages, mydataset$sex") doesn't work
either and nor does myfunc (c("mydataset$ages", "mydataset$sex"))
Now in the simple version above I could make the function (category1,
category2) and then call table (category1, category2) - but what if I might
have a category 3, category 4 etc... How can I pass the dataset name to the
function without it trying to actually pass the data to the function? I've
also tried paste - but perhaps I'm mis-using it?
Many thanks for help in advance
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