How can I correctly store output from this For loop into a new variable?

Hi!

I have a simple for loop im trying to write, wherein within an array from 1:5:150, if a number is even it is multiplied by 4 and if odd it is cubed:

a=[1:5:150]
for a=1:5:150
    if rem(a,2)==0; i(a)= 4*a
    else i(a)= a.^3
    end
end

The output here is set to place all the modified values into a new variable ,i, however this produces a column list with intervals of 4 zeros between each value as such:

Columns 1 through 13

           1           0           0           0           0          24           0           0           0           0        1331

How can I produce a single row vector output instead so that the new variable represents the output in a much neater way?

Answer 1

[Image Analyst]

Lots of problems with that code. Just try it this way:

a=[1:5:150]
for k = 1 : length(a)
	if rem(a(k),2) == 0
		output(k) = 4 * a(k);
	else
		output(k) = a(k) .^ 3;
	end
end
output

Answer 2

[madhan ravi]

a=[1:5:150]
ctr=1;
for a=1:5:150
    if rem(a,2)==0
        
        i(ctr)= 4*a
    else
   
        i(ctr)= a.^3
    end
    ctr=ctr+1;
end