[R] changing factor to numbers without getting NAs
murdoch.duncan at gmail.com
Fri May 13 14:09:26 CEST 2016
On 13/05/2016 7:56 AM, ch.elahe via R-help wrote:
> Hi all,
> I have a df which a part of this is:
> TSTMax :int 213 228 227 281
> TSTMin :int 149 167 158 176
> TSTMean :Factor w/94 levels "100,2" , "104,3" , ...
> I want to change the TSTMean into numeric but by using as.numeric(as.character(df$TSTMean)) I get too many NAs.
> Is there a way to change TSTMean into numeric without those NAs?
> I want TSTMean to be at the end like:
> TSTMean :int 100.2 104.3 .....
You appear to have a comma as the decimal marker, so you can use
type.convert(as.character(df$TSTMean), dec = ",", as.is = TRUE) instead
A simpler approach might be to avoid getting the factor in the first
place; if you read this data using read.table, there is the dec option
to recognize a comma as the decimal separator.
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