How to add row and column labels to matrix?

75 vues (au cours des 30 derniers jours)
chocho
chocho le 24 Mai 2018
Modifié(e) : chocho le 24 Mai 2018
Hello guys, I have a matrix of size 135*135 and a cell array of type strings size 135*1
I want to add this cell array in the row and columns of this matrix.
Example_inputs
Expected_outputs

Réponse acceptée

Ameer Hamza
Ameer Hamza le 24 Mai 2018
Modifié(e) : Ameer Hamza le 24 Mai 2018
Duplicate row names and Variables are not supported in MATLAB, consider adding your labels as an extra column of the table. For example
x = rand(4);
label = compose('head%d', [1 1 2 3])';
cellArray = [[{' '}; label]'; label num2cell(x)];
T = cell2table(cellArray);
T =
5×5 table
cellArray1 cellArray2 cellArray3 cellArray4 cellArray5
__________ __________ __________ __________ __________
' ' 'head1' 'head1' 'head2' 'head3'
'head1' [0.6518] [0.7975] [0.3759] [0.4024]
'head1' [0.1314] [0.7482] [0.8932] [0.6812]
'head2' [0.7244] [0.0342] [0.1829] [0.7504]
'head3' [0.6333] [0.5028] [0.1158] [0.7177]
  13 commentaires
Ameer Hamza
Ameer Hamza le 24 Mai 2018
In that case, you don't need to make the table first according to the code in the answer. You can make it like this
x = rand(4);
x = x';
label = compose('head%d', 1:4)';
labelColumnsIndex = fliplr( combvec((1:length(label)), (1:length(label)))' );
labelColumns = label(labelColumnsIndex);
T = [array2table(labelColumns) array2table(x(:))];
chocho
chocho le 24 Mai 2018
Modifié(e) : chocho le 24 Mai 2018
@Ameer Hamza Thank you too too much, well done!

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Plus de réponses (2)

KSSV
KSSV le 24 Mai 2018
row = {'head1' ; 'head2' ; 'head3' } ;
head1 = rand(3,1) ;
head2 = rand(3,1) ;
head3 = rand(3,1) ;
T = table(row,head1,head2,head3)
  1 commentaire
chocho
chocho le 24 Mai 2018
Modifié(e) : chocho le 24 Mai 2018
@KSSV I have 135 heads How to generalize this code? and my matrix is of size 135*135 too

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Akira Agata
Akira Agata le 24 Mai 2018
OK. Then, how about the following? I believe it will be applicable to 135-by-135.
% Sample data
x = rand(4);
label = {'head1';'head2';'head3';'head4'};
% Store them in table
T = array2table(x,'RowNames',label,'VariableNames',label);
The result looks like:
>> T
T =
4×4 table
head1 head2 head3 head4
_______ ________ _______ ________
head1 0.42176 0.65574 0.67874 0.65548
head2 0.91574 0.035712 0.75774 0.17119
head3 0.79221 0.84913 0.74313 0.70605
head4 0.95949 0.93399 0.39223 0.031833
  4 commentaires
Akira Agata
Akira Agata le 24 Mai 2018
Modifié(e) : Akira Agata le 24 Mai 2018
Maybe you need not only to remove duplication, but also to remove/replace special characters from row name. Following would be one possible solution.
% Sample data (label contains duplication and special characters)
x = rand(4);
label = {...
'head1';...
'head2';...
'ptr04015:Rap1 signaling pathway';...
'ptr04015:Rap1 signaling pathway'};
% Replace special character to '_'
label = regexprep(label,'\W','_');
% To avoid duplication
suffix = arrayfun(@(k) {sprintf('Ver%03d_',k)},(1:N)');
label = strcat(suffix,label);
T = array2table(x,'RowNames',label,'VariableNames',label);
The output is:
>> T
T =
4×4 table
Ver001_head1 Ver002_head2 Ver003_ptr04015_Rap1_signaling_pathway Ver004_ptr04015_Rap1_signaling_pathway
____________ ____________ ______________________________________ ______________________________________
Ver001_head1 0.8909 0.14929 0.81428 0.1966
Ver002_head2 0.95929 0.25751 0.24352 0.25108
Ver003_ptr04015_Rap1_signaling_pathway 0.54722 0.84072 0.92926 0.61604
Ver004_ptr04015_Rap1_signaling_pathway 0.13862 0.25428 0.34998 0.47329
chocho
chocho le 24 Mai 2018
suffix = arrayfun(@(k) {sprintf('Ver%03d_',k)},(1:N)');
N is not defined ? i have change by k but still have problem
it says:
'Ver064_ptr04550_Signaling_pathways_regulating_pluripotency_of_stem_cells' is not a valid variable name.
I can share the data if you want?

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