Outputting a variable (1*1) struct in txt file

Hello everybody

I run the regression analysis and have got a varialble with reg [1*1 struct] I want to output this in a txt file but its giving me an error this is the out out

reg = 

           FitParameters: '-----------------'
             PowerMatrix: [28x6 double]
                  Scores: [14152x28 double]
    PolynomialExpression: [28x2 table]
            Coefficients: [28x1 double]
                    yhat: [14152x1 double]
               Residuals: [14152x1 double]
           GoodnessOfFit: '-----------------'
                 RSquare: 0.6721
                     MAE: 0.0693
                  MAESTD: 0.0593
           Normalization: '1-to-1 (Default)'
      LOOCVGoodnessOfFit: '-----------------'
               CVRSquare: 0.6684
                   CVMAE: 0.0696
                CVMAESTD: 0.0600
         CVNormalization: '1-to-1 (Default)'

Can anybody help me with this as save('X.txt...') is not working

[Walter Roberson]

What format do you want for the output, taking into account that part of the data involves a 14152 x 28 matrix ?

[amberly hadden]

I would like to get .txt or xlsx or any out put which can later be open without matlab

Answer 1

[Walter Roberson]

Xls might not make sense unless you use one Sheet per variable.

I suggest looping over the fields of the structure. For each write out the fieldname then the class() of the data then the array dimensions all on one line. Next line write the values out row by row, delimited, all columns on each line. For 2d arrays the number of rows in the file would match the number of rows in the matrix. You only use 2d in your sample output.

With this kind of arrangement, the heading for each variable tells you how many lines of data follow so you can gulp them all in in one textscan call or otherwise easily seek for the line you need.

[Walter Roberson]

Though the table() object will take a bit more effort.

[amberly hadden]

Thanks walter much appreciated. table() is again creating a 1*1 struct.

Also I think I can modify code in a way that it output table which can be then expoted

reg = struct('FitParameters','-----------------','PowerMatrix',A,'Scores',Scores, ...
        'PolynomialExpression',PolyExp,'Coefficients',b, 'yhat', yhat, 'Residuals', r, ...
        'GoodnessOfFit','-----------------', 'RSquare', r2, 'MAE', mae, 'MAESTD', maestd, ...
        'Normalization',NormalizationSwitch,'LOOCVGoodnessOfFit','-----------------', 'CVRSquare', ...
        CVr2, 'CVMAE', CVmae, 'CVMAESTD', CVmaestd,'CVNormalization',NormalizationSwitch);

so instead of struct I can just use {} but its not including variable values.. I will keep trying this and many thanks for your help