Ho can I Reshape a matrix?

I have a DE variable made up by 1xn. It is a row vector. After this I have a col_DE constant that is simply a number. I have to create from DE a matrix that is an made up by col_DE columns and n/col_DE rows. For example If I have a DE=1x56 double variable this new matrix will be made up by the same element of 1x56 (or 1xn in the general case). But if DE is a row vector I would like to obtain an array. I have to obtain a matrix where we need to go over again every col_DE elements. If you do this then we have a 8x7 array.How Can I do?

Answer 1

[Walter Roberson]

newDE = reshape(DE, 7, 8) .';

[Francesco]

The .' was my problem. If I write simply

newDE = reshape(DE, 7, 8)

it reshape wrong for my aim. With .' you said: Make transposed element by element, is it right?

[Walter Roberson]

Unlike the other dot-operations, .' does not mean "element by element". Instead .' means "plain transpose" and ' without the "." means "conjugate transpose".

' and .' are the same for real values, but I prefer to use .' to make my intentions clearer for anyone who might happen to want to adopt my code to use complex values.

[Francesco]

Walter, what's does plain mean? I've never heard this word!

[Walter Roberson]

"plain" is "ordinary", "unexceptional", "does nothing unusual", "unadorned". In French, ordinaire, pur, simple.

The .' operator only switches the orientation. The . operator switches the orientation and also does complex conjugate.