Linear model function lm() error: NA/NaN/Inf in foreign function call (arg 1)

Question

Say I have data.frame a

I use

m.fit <- lm(col2 ~ col3 * col4, na.action = na.exclude)

col2 has some <

Answer 1

I know this thread is really old, but the answers don't seem complete, and I just ran into the same problem.

The problem I was having was because the NA columns also had NaN and Inf. Remove those and try it again. Specifically:

col2[which(is.nan(col2))] = NA
col2[which(col2==Inf)] = NA

Hope that helps your 18 month old question!