Create a new matrix from two

Riccardo Rossi

2018 12 14

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Hello everyone, i have 2 matrix A and B:

A (4X8):

0 0 0 0 0 1 0 0

0 0 1 1 1 0 1 0

0 1 0 0 0 1 0 1

1 0 1 0 0 1 0 0

B (4X3):

X1 Y1 Z1

X2 Y2 Z2

X3 Y3 Z3

X4 Y4 Z4

is it possible to create a new matrix like this?

X4 Y4 Z4 X3 Y3 Z3 X2 Y2 Z2 X2 Y2 Z2 X1 Y1 Z1 X2 Y2 Z2 X3 Y3 Z3

X4 Y4 Z4 X3 Y3 Z3

X4 Y4 Z4

i tried with this code but it creates a matrix with only 3 columns:

for k=1:8

C=B(A(:,k),:);

if ~(mod(k,1))

dlmwrite('file.txt',C,'-append');

READC=dlmread('file.txt') ;

end

Thanks!

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Jan 2018-12-14

The question is not clear. What are "X1", "X2" etc.? Are they strings, symbolic variables or anyting else? The object C is not clearly defined. It cannot be a "matrix", because matrices need to have the same number of elements per row and colum. It is not clear, why you use dlmwrite and dlmread - is te indirection over the hard disk useful?

Please post valid Matlab code, which creates the inputs, and explain, which type the output should have.

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