Re: [R] Puzzled by an error with apply()

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 withou

Re: [R] Puzzled by an error with apply()

On 7/04/2009, at 2:04 PM, 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 symbo

[R] Puzzled by an error with apply()

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