Unwhich

0th

Percentile

Inverse Which

The inverse function to which creates a logical vector/matrix from indices.

Keywords
attribute, logic
Usage
Unwhich(idx, n, useNames = TRUE)
Arguments
idx
the indices as returned by which.

n
integer, the length of the original vector.

useNames
logical, determining if the names of the indices should be preserved.

Value

TRUE on the positions i.

References

http://stackoverflow.com/questions/7659833/inverse-of-which

See Also

which

Aliases
  • Unwhich
Examples
ll <- c(TRUE, FALSE, TRUE, NA, FALSE, FALSE, TRUE)
names(ll) <- letters[seq(ll)]
i <- which(ll)
# back again (loosing the names of the FALSEs)
Unwhich(i, length(ll))
Documentation reproduced from package DescTools, version 0.99.19, License: GPL (>= 2)

Community examples

Looks like there are no examples yet.