search for: tp4650390p4650482

Displaying 1 result from an estimated 1 matches for "tp4650390p4650482".

2012 Nov 21
2
ifelse + numeric
Hi, I have a data frame and I need to add another column. I am using: data[,4] <- ifelse(data[,3]<1,data[,1]/(1-data[,3]),"NA") This is returning values but are in quotation marks. The error I am getting is "non-numeric argument to binary operator" I need column four in data to be numeric. Tried as.numeric but it did not work well either. Would appreciate any help.