Random Forest with cross validation












0















I'd like to do cross validation on a Random Forest model.
I've tried using crossval but it doesn't work on TreeBagger.



I tried using for loop, but I'm not sure it's correct:



RF6treenum = 50; 

err6 = zeros(cp.NumTestSets,1);

for i = 1:cp.NumTestSets
trIdx = cp.training(i);
teIdx = cp.test(i);
RF6 = TreeBagger(50,X_training(trIdx,:),Y_train(trIdx,:),'OOBPrediction','On',...
'Method','classification');
err6(i) = sum(error(RF6,X_training(teIdx,:),Y_train(teIdx,:)))/RF6treenum;
end
errRF6 = sum(err6)/10;









share|improve this question





























    0















    I'd like to do cross validation on a Random Forest model.
    I've tried using crossval but it doesn't work on TreeBagger.



    I tried using for loop, but I'm not sure it's correct:



    RF6treenum = 50; 

    err6 = zeros(cp.NumTestSets,1);

    for i = 1:cp.NumTestSets
    trIdx = cp.training(i);
    teIdx = cp.test(i);
    RF6 = TreeBagger(50,X_training(trIdx,:),Y_train(trIdx,:),'OOBPrediction','On',...
    'Method','classification');
    err6(i) = sum(error(RF6,X_training(teIdx,:),Y_train(teIdx,:)))/RF6treenum;
    end
    errRF6 = sum(err6)/10;









    share|improve this question



























      0












      0








      0








      I'd like to do cross validation on a Random Forest model.
      I've tried using crossval but it doesn't work on TreeBagger.



      I tried using for loop, but I'm not sure it's correct:



      RF6treenum = 50; 

      err6 = zeros(cp.NumTestSets,1);

      for i = 1:cp.NumTestSets
      trIdx = cp.training(i);
      teIdx = cp.test(i);
      RF6 = TreeBagger(50,X_training(trIdx,:),Y_train(trIdx,:),'OOBPrediction','On',...
      'Method','classification');
      err6(i) = sum(error(RF6,X_training(teIdx,:),Y_train(teIdx,:)))/RF6treenum;
      end
      errRF6 = sum(err6)/10;









      share|improve this question
















      I'd like to do cross validation on a Random Forest model.
      I've tried using crossval but it doesn't work on TreeBagger.



      I tried using for loop, but I'm not sure it's correct:



      RF6treenum = 50; 

      err6 = zeros(cp.NumTestSets,1);

      for i = 1:cp.NumTestSets
      trIdx = cp.training(i);
      teIdx = cp.test(i);
      RF6 = TreeBagger(50,X_training(trIdx,:),Y_train(trIdx,:),'OOBPrediction','On',...
      'Method','classification');
      err6(i) = sum(error(RF6,X_training(teIdx,:),Y_train(teIdx,:)))/RF6treenum;
      end
      errRF6 = sum(err6)/10;






      matlab random-forest cross-validation






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 25 '18 at 23:59









      Cris Luengo

      22k52253




      22k52253










      asked Nov 25 '18 at 23:29









      Ana ClaudiaAna Claudia

      383312




      383312
























          0






          active

          oldest

          votes











          Your Answer






          StackExchange.ifUsing("editor", function () {
          StackExchange.using("externalEditor", function () {
          StackExchange.using("snippets", function () {
          StackExchange.snippets.init();
          });
          });
          }, "code-snippets");

          StackExchange.ready(function() {
          var channelOptions = {
          tags: "".split(" "),
          id: "1"
          };
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function() {
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled) {
          StackExchange.using("snippets", function() {
          createEditor();
          });
          }
          else {
          createEditor();
          }
          });

          function createEditor() {
          StackExchange.prepareEditor({
          heartbeatType: 'answer',
          autoActivateHeartbeat: false,
          convertImagesToLinks: true,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: 10,
          bindNavPrevention: true,
          postfix: "",
          imageUploader: {
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          },
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          });


          }
          });














          draft saved

          draft discarded


















          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53473045%2frandom-forest-with-cross-validation%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown

























          0






          active

          oldest

          votes








          0






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes
















          draft saved

          draft discarded




















































          Thanks for contributing an answer to Stack Overflow!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid



          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.


          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function () {
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53473045%2frandom-forest-with-cross-validation%23new-answer', 'question_page');
          }
          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown







          Popular posts from this blog

          Create new schema in PostgreSQL using DBeaver

          Deepest pit of an array with Javascript: test on Codility

          Costa Masnaga