How to implement 10 fold cross validation?












2















I have a code to perform 10 fold cross-validation on a dataset. The code is created by dividing the data into k-1 parts for training and the remaining part for testing. I want to see if my code is correct or not
My code is:



 Dataset data = data1;
Dataset folds = data.folds((10), new Random(100));
Dataset training = new DefaultDataset();
Dataset testing = new DefaultDataset();
int tr = {0, 2, 3, 4,5, 6,7, 8, 9};
int te = {1};
for (int i = 0; i < tr.length; i++) {
training.addAll(folds[tr[i]]);
}
for (int i = 0; i < te.length; i++) {
testing.addAll(folds[te[i]]);
}









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    2















    I have a code to perform 10 fold cross-validation on a dataset. The code is created by dividing the data into k-1 parts for training and the remaining part for testing. I want to see if my code is correct or not
    My code is:



     Dataset data = data1;
    Dataset folds = data.folds((10), new Random(100));
    Dataset training = new DefaultDataset();
    Dataset testing = new DefaultDataset();
    int tr = {0, 2, 3, 4,5, 6,7, 8, 9};
    int te = {1};
    for (int i = 0; i < tr.length; i++) {
    training.addAll(folds[tr[i]]);
    }
    for (int i = 0; i < te.length; i++) {
    testing.addAll(folds[te[i]]);
    }









    share|improve this question



























      2












      2








      2








      I have a code to perform 10 fold cross-validation on a dataset. The code is created by dividing the data into k-1 parts for training and the remaining part for testing. I want to see if my code is correct or not
      My code is:



       Dataset data = data1;
      Dataset folds = data.folds((10), new Random(100));
      Dataset training = new DefaultDataset();
      Dataset testing = new DefaultDataset();
      int tr = {0, 2, 3, 4,5, 6,7, 8, 9};
      int te = {1};
      for (int i = 0; i < tr.length; i++) {
      training.addAll(folds[tr[i]]);
      }
      for (int i = 0; i < te.length; i++) {
      testing.addAll(folds[te[i]]);
      }









      share|improve this question
















      I have a code to perform 10 fold cross-validation on a dataset. The code is created by dividing the data into k-1 parts for training and the remaining part for testing. I want to see if my code is correct or not
      My code is:



       Dataset data = data1;
      Dataset folds = data.folds((10), new Random(100));
      Dataset training = new DefaultDataset();
      Dataset testing = new DefaultDataset();
      int tr = {0, 2, 3, 4,5, 6,7, 8, 9};
      int te = {1};
      for (int i = 0; i < tr.length; i++) {
      training.addAll(folds[tr[i]]);
      }
      for (int i = 0; i < te.length; i++) {
      testing.addAll(folds[te[i]]);
      }






      java machine-learning cross-validation






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      edited Nov 18 '18 at 8:26









      desertnaut

      17k63668




      17k63668










      asked Nov 18 '18 at 2:49









      Data MinerData Miner

      1116




      1116
























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          Assuming code in the line



          data.folds((10), new Random(100));


          is correctly sampling 10 percent of the data, and return all 10 folds to output variable, separating the dataset looks correct.



          However, you should remember to iterate k times for k-fold cross validation and average results.



          k iterations for k fold cross validation



          Source: https://en.wikipedia.org/wiki/Cross-validation_(statistics)#/media/File:K-fold_cross_validation_EN.jpg






          share|improve this answer























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            1 Answer
            1






            active

            oldest

            votes








            1 Answer
            1






            active

            oldest

            votes









            active

            oldest

            votes






            active

            oldest

            votes









            2














            Assuming code in the line



            data.folds((10), new Random(100));


            is correctly sampling 10 percent of the data, and return all 10 folds to output variable, separating the dataset looks correct.



            However, you should remember to iterate k times for k-fold cross validation and average results.



            k iterations for k fold cross validation



            Source: https://en.wikipedia.org/wiki/Cross-validation_(statistics)#/media/File:K-fold_cross_validation_EN.jpg






            share|improve this answer




























              2














              Assuming code in the line



              data.folds((10), new Random(100));


              is correctly sampling 10 percent of the data, and return all 10 folds to output variable, separating the dataset looks correct.



              However, you should remember to iterate k times for k-fold cross validation and average results.



              k iterations for k fold cross validation



              Source: https://en.wikipedia.org/wiki/Cross-validation_(statistics)#/media/File:K-fold_cross_validation_EN.jpg






              share|improve this answer


























                2












                2








                2







                Assuming code in the line



                data.folds((10), new Random(100));


                is correctly sampling 10 percent of the data, and return all 10 folds to output variable, separating the dataset looks correct.



                However, you should remember to iterate k times for k-fold cross validation and average results.



                k iterations for k fold cross validation



                Source: https://en.wikipedia.org/wiki/Cross-validation_(statistics)#/media/File:K-fold_cross_validation_EN.jpg






                share|improve this answer













                Assuming code in the line



                data.folds((10), new Random(100));


                is correctly sampling 10 percent of the data, and return all 10 folds to output variable, separating the dataset looks correct.



                However, you should remember to iterate k times for k-fold cross validation and average results.



                k iterations for k fold cross validation



                Source: https://en.wikipedia.org/wiki/Cross-validation_(statistics)#/media/File:K-fold_cross_validation_EN.jpg







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 18 '18 at 5:16









                Semih KorkmazSemih Korkmaz

                8191024




                8191024






























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