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!
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