One simple explanation for the error message you received is that you have a typo: 'lapply' instead of 'apply':
x <- matrix(1:6, 2) apply(x, 1, sum)
[1] 9 12
lapply(x, 1, sum)
Error in match.fun(FUN) : '1' is not a function, character or symbol
However, it's difficult to diagnose without at least seeing some cut'n'pasted transcripts. The output of traceback() would also be useful. -- Tony Plate Gang Chen wrote:
I've written a function, myFunc, that works fine with myFunc(data, ...), but when I use apply() to run it with an array of data apply(myArray, 1, myFunc, ...) I get a strange error: Error in match.fun(FUN) : '1' is not a function, character or symbol which really puzzles me because '1' is meant to be the margin of the array I want to apply over, but how come does apply() treat it as a function? I have been successfully using apply() for a while, so I must have made a stupid mistake this time. Hopefully somebody can point out something obviously wrong without me providing any details of the function. TIA, Gang ______________________________________________ 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.
______________________________________________ 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.
