Greetings to all --
I am having a silly problem that I just can't solve. Someone has given me
an .RData file will hundreds of data frames. Each data frame has a column
named ResultValue, currently character when it should be numeric. I want to
loop through all of the data frames to change the variable to numeric, but I
cannot figure out how to do it. My best guess was along the lines of:
frames = ls()
for (frame in frames){
assign(frame, get(frame), .GlobalEnv)
frame[,"ResultValue"] = as.numeric(frame[,"ResultValue"])
}
It doesn't work. After the assign() the frame object remains the character
name of the dataframe I am trying to change. If I do the following, the
TEST object comes out just fine.
frames = ls()
for (frame in frames){
assign("TEST", get(frame), .GlobalEnv)
TEST[,"ResultValue"] = as.numeric(TEST[,"ResultValue"])
}
Seems like it should be simple, but I am misunderstanding something and not
following the logic. Any insight?
Thanks,
Sarah
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