how to use melt function in multiple columns in pandas?












2














I have a data frame which has columns like this



balance,
2016-10-5,
2016-11-8,
2017-3-7,
2018-5-29


and more. my desire output columns like this



balance,
date,
values


I tried using this script:



df= pd.melt(df,id_vars=['balance'], value_vars=['2016-10-5,2016-11-8,2017-3-7,2018-5-29'] var_name='date',value_name='values')



this code worked but columns are too many how to make all date in date columns in pandas?










share|improve this question





























    2














    I have a data frame which has columns like this



    balance,
    2016-10-5,
    2016-11-8,
    2017-3-7,
    2018-5-29


    and more. my desire output columns like this



    balance,
    date,
    values


    I tried using this script:



    df= pd.melt(df,id_vars=['balance'], value_vars=['2016-10-5,2016-11-8,2017-3-7,2018-5-29'] var_name='date',value_name='values')



    this code worked but columns are too many how to make all date in date columns in pandas?










    share|improve this question



























      2












      2








      2


      1





      I have a data frame which has columns like this



      balance,
      2016-10-5,
      2016-11-8,
      2017-3-7,
      2018-5-29


      and more. my desire output columns like this



      balance,
      date,
      values


      I tried using this script:



      df= pd.melt(df,id_vars=['balance'], value_vars=['2016-10-5,2016-11-8,2017-3-7,2018-5-29'] var_name='date',value_name='values')



      this code worked but columns are too many how to make all date in date columns in pandas?










      share|improve this question















      I have a data frame which has columns like this



      balance,
      2016-10-5,
      2016-11-8,
      2017-3-7,
      2018-5-29


      and more. my desire output columns like this



      balance,
      date,
      values


      I tried using this script:



      df= pd.melt(df,id_vars=['balance'], value_vars=['2016-10-5,2016-11-8,2017-3-7,2018-5-29'] var_name='date',value_name='values')



      this code worked but columns are too many how to make all date in date columns in pandas?







      python pandas






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Nov 23 at 13:58









      user10465355

      1,3681411




      1,3681411










      asked Nov 23 at 5:41









      subash poudel

      758




      758
























          1 Answer
          1






          active

          oldest

          votes


















          2














          You can remove parameter value_vars, check function melt:




          value_vars : tuple, list, or ndarray, optional



          Column(s) to unpivot. If not specified, uses all columns that are not set as id_vars.




          df= pd.melt(df,id_vars='balance', var_name='date',value_name='values')





          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%2f53441175%2fhow-to-use-melt-function-in-multiple-columns-in-pandas%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














            You can remove parameter value_vars, check function melt:




            value_vars : tuple, list, or ndarray, optional



            Column(s) to unpivot. If not specified, uses all columns that are not set as id_vars.




            df= pd.melt(df,id_vars='balance', var_name='date',value_name='values')





            share|improve this answer


























              2














              You can remove parameter value_vars, check function melt:




              value_vars : tuple, list, or ndarray, optional



              Column(s) to unpivot. If not specified, uses all columns that are not set as id_vars.




              df= pd.melt(df,id_vars='balance', var_name='date',value_name='values')





              share|improve this answer
























                2












                2








                2






                You can remove parameter value_vars, check function melt:




                value_vars : tuple, list, or ndarray, optional



                Column(s) to unpivot. If not specified, uses all columns that are not set as id_vars.




                df= pd.melt(df,id_vars='balance', var_name='date',value_name='values')





                share|improve this answer












                You can remove parameter value_vars, check function melt:




                value_vars : tuple, list, or ndarray, optional



                Column(s) to unpivot. If not specified, uses all columns that are not set as id_vars.




                df= pd.melt(df,id_vars='balance', var_name='date',value_name='values')






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 23 at 6:19









                jezrael

                319k22258337




                319k22258337






























                    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.





                    Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


                    Please pay close attention to the following guidance:


                    • 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%2f53441175%2fhow-to-use-melt-function-in-multiple-columns-in-pandas%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

                    Lallio

                    Unable to find Lightning Node

                    Futebolista