How to change array format - change row number and column number, but have all the data as before

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SNT 2018-6-1

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https://ww2.mathworks.cn/matlabcentral/answers/403525-how-to-change-array-format-change-row-number-and-column-number-but-have-all-the-data-as-before

编辑： Stephen23 2018-6-1

采纳的回答： Stephen23

在 MATLAB Online 中打开

Hi everyone,

I am interested in following if I put as an example;

I have an array A;

Now I would like to change this to array B which would look like;

1 1 1 2 2 2 2 3 3 3 3
1 1 1 2 2 2 2 3 3 3 3
1 1 1 2 2 2 2 3 3 3 3

How can I do this type of thing on matlab? The array A can have much more sets of data, and the code must go through each row of A until there is no more data.

Thanks a lot in advance! Sara

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Answer 1

Stephen23 2018-6-1

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https://ww2.mathworks.cn/matlabcentral/answers/403525-how-to-change-array-format-change-row-number-and-column-number-but-have-all-the-data-as-before#answer_322767

编辑：Stephen23 2018-6-1

在 MATLAB Online 中打开

Depending on the required element order, (along 2nd dim first):

B = reshape(A.',3,[])

or (along 1st dim first):

B = reshape(permute(reshape(A,3,[],4),[1,3,2]),3,[])

or (along 1st dim first):

cell2mat(mat2cell(A,[3,3,3],4).')

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SNT 2018-6-1

编辑：SNT 2018-6-1

在 MATLAB Online 中打开

Hi Stephen,

The first one doesn't quite give me the format I am looking for

when I input A ;

547008892  0.744692807  0.686775433
296320806  0.188955015  0.183511156
368484596  0.780227435  0.929385971
625618561  0.081125769  0.775712679
486791632  0.446783749  0.508508655
435858589  0.306349472  0.510771564
817627708  0.64431813  0.811580458
794831417  0.378609383  0.532825589
350727104  0.875942811  0.622475086
939001562  0.550156343  0.587044705

I get B as;

547008892  0.296320806  0.368484596  0.625618561  0.486791632  0.435858589  0.817627708  0.794831417  0.350727104  0.939001562
744692807  0.188955015  0.780227435  0.081125769  0.446783749  0.306349472  0.64431813  0.378609383  0.875942811  0.550156343
686775433  0.183511156  0.929385971  0.775712679  0.508508655  0.510771564  0.811580458  0.532825589  0.622475086  0.587044705

when I should be getting;

0.547008892  0.744692807  0.686775433  0.368484596  0.780227435  0.929385971  0.486791632  0.446783749  0.508508655  0.817627708  0.64431813  0.811580458  0.350727104  0.875942811  0.622475086
0.296320806  0.188955015  0.183511156  0.625618561  0.081125769  0.775712679  0.435858589  0.306349472  0.510771564  0.794831417  0.378609383  0.532825589  0.939001562  0.550156343  0.587044705

How can I modify the code to get the desired output? The again the number of data in the A can vary, and I must be able to specify at which rows to break and start a new column.. In this example, I have taken every two rows and placed them as a set of new columns.

Would be great if you could help me out!

Thanks!

Stephen23 2018-6-1

编辑：Stephen23 2018-6-1

在 MATLAB Online 中打开

>> reshape(permute(reshape(A.',size(A,2),2,[]),[2,1,3]),2,[])
ans =
  0.547009   0.744693   0.686775   0.368485   0.780227   0.929386   0.486792   0.446784   0.508509   0.817628   0.644318   0.811580   0.350727   0.875943   0.622475
  0.296321   0.188955   0.183511   0.625619   0.081126   0.775713   0.435859   0.306349   0.510772   0.794831   0.378609   0.532826   0.939002   0.550156   0.587045