3 messages · Dimitri Liakhovitski, Jorge Ivan Velez
Hello! I have a data frame with some NAs. test<-data.frame(a=c(1,2,NA),b=c(10,NA,20)) I need to sum up values in 2 variables. However: test$a+test$b procudes NAs in rows that have NAs. How could I sum up columns while ignoring NAs (the way the function sum(..., na.rm=T) works? Thank you!
Dimitri Liakhovitski marketfusionanalytics.com
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Sorry, never mind - I have to use rowSums with na.rm=T Dimitri On Fri, Aug 5, 2011 at 2:01 PM, Dimitri Liakhovitski
Hello! I have a data frame with some NAs. test<-data.frame(a=c(1,2,NA),b=c(10,NA,20)) I need to sum up values in 2 variables. However: test$a+test$b procudes NAs in rows that have NAs. How could I sum up columns while ignoring NAs (the way the function sum(..., na.rm=T) works? Thank you! -- Dimitri Liakhovitski marketfusionanalytics.com
Dimitri Liakhovitski marketfusionanalytics.com