I want to use for loop so I can get the result for i:i+1 columns at each iteration. E.g: when i= 1, I get 1st & 2nd cols, i= 2 , 3rd and 4th cols.
m= [2 -3;4 6]
al= [1 3;-2 -4]
l=[1 0; 2 4]
Random.seed!(1234)
d= [rand(2:20, 10) rand(-1:10, 10)]
Random.seed!(1234)
c= [rand(0:30, 10) rand(-1:20, 10)]
n,g=size(w)
mx=zeros(n,2*g)
for i =1:g
mx[ : ,i:i+1] = m[:,i]' .+ (d[:,i]' .* al[:,i])' .+ (l[:,i]' .* c[:,i])
end
return mx
I got the following which is wrong when I compared it with doing the process manually
julia> mx
10×4 Array{Float64,2}:
8.0 -6.0 10.0 0.0
22.0 3.0 18.0 0.0
40.0 18.0 38.0 0.0
9.0 9.0 22.0 0.0
51.0 3.0 18.0 0.0
10.0 18.0 34.0 0.0
52.0 12.0 30.0 0.0
36.0 21.0 42.0 0.0
44.0 24.0 42.0 0.0
33.0 24.0 42.0 0.0
The first 2 cols and last 2 cols in mx should be matched the results here with same order
mx1_2=m[:,1]' .+ (d[:,1]' .* al[:,1])' .+ (l[:,1]' .* c[:,1])
mx2_4=m[:,2]' .+ (d[:,2]' .* al[:,2])' .+ (l[:,2]' .* c[:,2])