Multiplying Vector by Constant that Depends on Vector Elements

Given a vector containing values 1 through 1000, I would like to multiply the vector elements by constant C1 if they range from 1-100, by constant C2 if they range from 100-200, etc...
Is there a simpler way to do this than iterating through the vector?
for i = 1:size(vector,2);
if vector(i) < 100
C = C1;
else if vector(i) < 200
C = C2;
end
result(i) = vector(i) * C;
end

 Respuesta aceptada

Mult = ones(size(vector));
Mult(vector < 200) = C2; % The largest limit at first!
Mult(vector < 100) = C1;
result = vector .* Mult;

2 comentarios

There have been some other good solutions which perform the distribution to the different intervals automatically. Unfortunately they have been deleted.
The 2nd output of HISTC could be useful also.
vector=randi([1 100],38,1);
[~,b] = histc(vector,0:100:1000);
C = randi(125,10,1);
result = C(b).*vector;

Iniciar sesión para comentar.

Más respuestas (0)

Categorías

Más información sobre Mathematics en Centro de ayuda y File Exchange.

Preguntada:

el 2 de Nov. de 2011

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by