I am trying to get the means of each participants avg saccade amplitude as a function of the group they were in (designated by "shape_"), but there are missing values in the dataset....this is what i tried...
with(data055,tapply(AVERAGE_SACCADE_AMPLITUDE,shape_,mean)) i get an error saying the argument is not numerical or logical next i try... > 055 <- tapply(data055$AVERAGE_SACCADE_AMPLITUDE, + data055$shape_,mean, na.rm =TRUE) still nothing.... help? thanks! -- View this message in context: http://r.789695.n4.nabble.com/apply-with-missing-values-tp4653889.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.
