Convert R-code to R-style

Question

Is there a way to write the following statement more efficiently? acceleration is a data frame.

accel[[2]]<- accel[[2]]-weighted.mean(accel[[2]])
accel[[3]]<- accel[[3]]-weighted.mean(accel[[3]])
accel[[4]]<- accel[[4]]-weighted.mean(accel[[4]])

Answer 1

Alternative

accel[2:4] <- lapply(accel[2:4], function(x) x-weighted.mean(x))

Answer 2

This is one way to do this.

accel[,2:4] = t(t(accel[,2:4]) - apply(accel[,2:4], 2, weighted.mean))

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The following Marek spot has been fixed - thanks.

Moral: Always check your R-code before publishing!