What is the fastest method to shift matrix?

General Usage
41

try if this is faster

Spshiftl(A,1) .+ B == hcat(A[:,2:end] .+ B[:1,1:end-1], B[:,end])
1 Like
42

Thanks for your explanation. It is clear now.
Actually, the case is A .= spshiftl(A,1).+B

43

try if this is faster

Spshiftl(A,1) .+ B = hcat(A[:,2:end] .+ B[:1,1:end-1], B[:,end])
44

I tried but Spshiftl(A,1) is faster than hcat(A[:,2:end] .+ B[:,1:end-1], B[:,end])