Multiplying matrices by a number
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João
am 22 Dez. 2013
Kommentiert: João
am 24 Dez. 2013
Hi all,
I have a matrix in matlab that I already divide in 52 matrices, now I want to multiply each one of this matrices by the same number.
Each one of the 52 matrices have the size 7*24.
So the code I used to read and divide the matrix is;
[num, preco] = xlsread('preco_2008', 'Folha1' , 'C3:Z368');
[M,N] = size(preco); %# Matrix size
nSub = 52; %# Number of submatrices
semana = mat2cell(preco,diff(round(linspace(0,M,nSub+1))),N);
Now I want to multiply "semana" by Txsemanal
IPC_2008=-0.5;
IPC_2013=-0.2;
Txmensal=(IPC_2013-IPC_2008)/(IPC_2008);
Txsemanal=Txmensal/4;
I already tried A = mtimes(semana,Txsemanal) and cellfun(@mtimes, semana, Txsemanal, 'UniformOutput', false)
But I getting and error.
Could you please help me with multiplication?
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Akzeptierte Antwort
Image Analyst
am 23 Dez. 2013
preco is the text (strings) in your workbook. So you can't multiply words by numbers . Perhaps you meant to use num instead , which is an array of numerical types, most likely doubles.
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