search for: ifelse1

useR's, I want to apply this function to the columns of a data frame: u[u >= range(v)[1] & u <= range(v)[2]] where u is the n column data frame under consideration and v is a data frame of values with the same number of columns as u. For example, v1 <- c(1,2,3) v2 <- c(3,4,5) v3 <- c(2,3,4) v <- as.data.frame(cbind(v1,v2,v3)) uk1 <- seq(min(v1) - .5, max(v1) + .5,

...quot;mpfr"), function(x,i,value) .........) but that currently fails as the C-low-level dispatch for '[<-' does not look at the full signature ]] I vaguely remember having seen proposals for light weight substitutes for ifelse(), called ifelse1() or ifelse2() etc... and I wonder if we should not try to see if there was a version that could go into "base R" (maybe the 'utils' package, not 'base'; that's not so important). One difference to ifelse() would be that the type/mode/class of...

Below is a version of [.data.frame that is faster for subscripting rows of large data frames; it avoids calling duplicated(rows) if there is no need to check for duplicate row names, when: i is logical attr(x, "dup.row.names") is not NULL (S+ compatibility) i is numeric and negative i is strictly increasing "[.data.frame" <- function (x, i, j,

I find it slightly surprising, that ifelse(TRUE, character(0), "") returns NA instead of character(0). [WNT 2.6.2 Patched] -- Heikki Kaskelma

...function(x,i,value) .........) > > but that currently fails as the C-low-level dispatch for '[<-' > does not look at the full signature > ]] > > I vaguely remember having seen proposals for > light weight substitutes for ifelse(), called > ifelse1() or > ifelse2() etc... > > and I wonder if we should not try to see if there was a version > that could go into "base R" (maybe the 'utils' package, not > 'base'; that's not so important). > > One difference to ifelse() woul...

....) >> >> but that currently fails as the C-low-level dispatch for '[<-' >> does not look at the full signature >> ]] >> >> I vaguely remember having seen proposals for >> light weight substitutes for ifelse(), called >> ifelse1() or >> ifelse2() etc... >> >> and I wonder if we should not try to see if there was a version >> that could go into "base R" (maybe the 'utils' package, not >> 'base'; that's not so important). >> &gt...

...; >> but that currently fails as the C-low-level dispatch for '[<-' >> does not look at the full signature >> ]] >> >> I vaguely remember having seen proposals for >> light weight substitutes for ifelse(), called >> ifelse1() or >> ifelse2() etc... >> >> and I wonder if we should not try to see if there was a version >> that could go into "base R" (maybe the 'utils' package, not >> 'base'; that's not so important). >> >&...