Why does this loops produce a matrix?

code

waves = [393.029, 414.386, 427.176, 516.748, 526.953, 640.000];
l = length(waves);
for i = 1:l
  L = waves(i)
  p = int32((L - minl)/.001) + 1    
end

output

L =
     3.930290000000000e+02
p =
      342030      338030      337030      347030      344030      340030      338030
L =
     4.143860000000000e+02
p =
      363387      359387      358387      368387      365387      361387      359387

etc.

The L's are right but where does the answer for p come from? Why is it not a single value?

[Matt J]

Because minl is not a scalar?

[Matt J]

Douglas' comment moved here:

Sorry, no

minl =
378.157
L =
     3.930290000000000e+02
p =
      342030      338030      337030      347030      344030      340030      338030
L =
     4.143860000000000e+02

Answer 1

[Matt J]

I suspect that minl is really a char array, like '378.157'. Try this instead

p(i)  = int32((L(i) - str2double(minl))/.001) + 1;

[Douglas Brenner]

Thank you.