OK. It looks like I just have several NA values at the start of my array: > which (is.na(x_ema)) [1] 1 2 3 4 5 6 7 8 9
That make sense, because the moving average is not defined for those positions. I'll just have to set those values to zero: > x_ema = replace(x_ema, which(is.na(x_ema)), 0) > which (is.na(x_ema)) integer(0) The mean() call works now and I can get on with my work. I'll have to remember to condition the data like this in the future. Thanks for the help! Reuben Bellika ______________________________________________ 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.
