hi, Can someone please help me figure out where I am making a mistake in my for/if loop:
I have a data frame (112 rows) called pricedata with 3 columns: date, prices, return. Now, I want to add a 4th column, trend, which can have 2 values 0 or 1. if return>1%, trend=1 else trend=0. so, this is what I did: >trend<-numeric(nrow(pricedata)) >cbind(pricedata,trend) >for(i in 2:nrow(pricedata)){ +if (return[i]>0.01) trend[i]=1 else trend[i]=0 +} and it doesn't change the values in trend, despite the fact that the return column has several rows with values >0.01 -why? thx! [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.