scale!(v, 1 .- 2t)
On Sat, Apr 19, 2014 at 5:11 AM, paul analyst <[email protected]> wrote: > I have a logical vector t > julia> t > 1x4 BitArray{2}: > true false false false > > and matrix v > julia> v > 4x4 Array {Float64, 2}: > -0.0018187 -0.18174 0.982684 0.0360478 > -0.018408 0.98314 0.1819 -0.00297265 > -0.995394 -0.0167994 -0.00839779 0.0940118 > 0.0940681 0.0111097 -0.0342677 0.994914 > > How quickly multiplied by -1 only the columns where vactor t = true ? > Paul >
