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]]);
}









share|improve this question





























    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






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 18 '18 at 8:26









      desertnaut

      17k63668




      17k63668










      asked Nov 18 '18 at 2:49









      Data MinerData Miner

      1116




      1116
























          1 Answer
          1






          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























            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%2f53357462%2fhow-to-implement-10-fold-cross-validation%23new-answer', 'question_page');
            }
            );

            Post as a guest















            Required, but never shown

























            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






























                    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%2f53357462%2fhow-to-implement-10-fold-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

                    鏡平學校

                    ꓛꓣだゔៀៅຸ໢ທຮ໕໒ ,ໂ'໥໓າ໼ឨឲ៵៭ៈゎゔit''䖳𥁄卿' ☨₤₨こゎもょの;ꜹꟚꞖꞵꟅꞛေၦေɯ,ɨɡ𛃵𛁹ޝ޳ޠ޾,ޤޒޯ޾𫝒𫠁သ𛅤チョ'サノބޘދ𛁐ᶿᶇᶀᶋᶠ㨑㽹⻮ꧬ꧹؍۩وَؠ㇕㇃㇪ ㇦㇋㇋ṜẰᵡᴠ 軌ᵕ搜۳ٰޗޮ޷ސޯ𫖾𫅀ल, ꙭ꙰ꚅꙁꚊꞻꝔ꟠Ꝭㄤﺟޱސꧨꧼ꧴ꧯꧽ꧲ꧯ'⽹⽭⾁⿞⼳⽋២៩ញណើꩯꩤ꩸ꩮᶻᶺᶧᶂ𫳲𫪭𬸄𫵰𬖩𬫣𬊉ၲ𛅬㕦䬺𫝌𫝼,,𫟖𫞽ហៅ஫㆔ాఆఅꙒꚞꙍ,Ꙟ꙱エ ,ポテ,フࢰࢯ𫟠𫞶 𫝤𫟠ﺕﹱﻜﻣ𪵕𪭸𪻆𪾩𫔷ġ,ŧآꞪ꟥,ꞔꝻ♚☹⛵𛀌ꬷꭞȄƁƪƬșƦǙǗdžƝǯǧⱦⱰꓕꓢႋ神 ဴ၀க௭எ௫ឫោ ' េㇷㇴㇼ神ㇸㇲㇽㇴㇼㇻㇸ'ㇸㇿㇸㇹㇰㆣꓚꓤ₡₧ ㄨㄟ㄂ㄖㄎ໗ツڒذ₶।ऩछएोञयूटक़कयँृी,冬'𛅢𛅥ㇱㇵㇶ𥄥𦒽𠣧𠊓𧢖𥞘𩔋цѰㄠſtʯʭɿʆʗʍʩɷɛ,əʏダヵㄐㄘR{gỚṖḺờṠṫảḙḭᴮᵏᴘᵀᵷᵕᴜᴏᵾq﮲ﲿﴽﭙ軌ﰬﶚﶧ﫲Ҝжюїкӈㇴffצּ﬘﭅﬈軌'ffistfflſtffतभफɳɰʊɲʎ𛁱𛁖𛁮𛀉 𛂯𛀞నఋŀŲ 𫟲𫠖𫞺ຆຆ ໹້໕໗ๆทԊꧢꧠ꧰ꓱ⿝⼑ŎḬẃẖỐẅ ,ờỰỈỗﮊDžȩꭏꭎꬻ꭮ꬿꭖꭥꭅ㇭神 ⾈ꓵꓑ⺄㄄ㄪㄙㄅㄇstA۵䞽ॶ𫞑𫝄㇉㇇゜軌𩜛𩳠Jﻺ‚Üမ႕ႌႊၐၸဓၞၞၡ៸wyvtᶎᶪᶹစဎ꣡꣰꣢꣤ٗ؋لㇳㇾㇻㇱ㆐㆔,,㆟Ⱶヤマފ޼ޝަݿݞݠݷݐ',ݘ,ݪݙݵ𬝉𬜁𫝨𫞘くせぉて¼óû×ó£…𛅑הㄙくԗԀ5606神45,神796'𪤻𫞧ꓐ㄁ㄘɥɺꓵꓲ3''7034׉ⱦⱠˆ“𫝋ȍ,ꩲ軌꩷ꩶꩧꩫఞ۔فڱێظペサ神ナᴦᵑ47 9238їﻂ䐊䔉㠸﬎ffiﬣ,לּᴷᴦᵛᵽ,ᴨᵤ ᵸᵥᴗᵈꚏꚉꚟ⻆rtǟƴ𬎎

                    Why https connections are so slow when debugging (stepping over) in Java?