R Combine Multiple Rows of DataFrame by creating new columns and union values












1












$begingroup$


I have a dataframe in R that looks like this



 ID    APPROVAL_STEP   APPROVAL_STATUS   APPROVAL_DATE     APPROVER
1234 STEP_A APPROVED 23-Jan-2019 John Smith
1234 STEP_B APPROVED 21-Jan-2019 Jane Doe


I need it to look like this



 ID    STEP_A_STATUS  STEP_A_APPROVAL_DATE  STEP_A_APPROVER  STEP_B_STATUS  STEP_B_APPROVAL_DATE  STEP_B_APPROVER
1234 APPROVED 23-Jan-2019 John Smith APPROVED 21-Jan-2019 Jane Doe


And of course, with the original dataframe, any of APPROVAL_STATUS, APPROVAL_DATE, or APPROVER can be NA.



What is the most elegant way to do this? I know how to do it by looping through the unique IDs, grabbing each row, creating new columns, etc.; but is there any way to do this in a more elegant way (e.g., using tidyverse)?










share|improve this question









$endgroup$

















    1












    $begingroup$


    I have a dataframe in R that looks like this



     ID    APPROVAL_STEP   APPROVAL_STATUS   APPROVAL_DATE     APPROVER
    1234 STEP_A APPROVED 23-Jan-2019 John Smith
    1234 STEP_B APPROVED 21-Jan-2019 Jane Doe


    I need it to look like this



     ID    STEP_A_STATUS  STEP_A_APPROVAL_DATE  STEP_A_APPROVER  STEP_B_STATUS  STEP_B_APPROVAL_DATE  STEP_B_APPROVER
    1234 APPROVED 23-Jan-2019 John Smith APPROVED 21-Jan-2019 Jane Doe


    And of course, with the original dataframe, any of APPROVAL_STATUS, APPROVAL_DATE, or APPROVER can be NA.



    What is the most elegant way to do this? I know how to do it by looping through the unique IDs, grabbing each row, creating new columns, etc.; but is there any way to do this in a more elegant way (e.g., using tidyverse)?










    share|improve this question









    $endgroup$















      1












      1








      1


      1



      $begingroup$


      I have a dataframe in R that looks like this



       ID    APPROVAL_STEP   APPROVAL_STATUS   APPROVAL_DATE     APPROVER
      1234 STEP_A APPROVED 23-Jan-2019 John Smith
      1234 STEP_B APPROVED 21-Jan-2019 Jane Doe


      I need it to look like this



       ID    STEP_A_STATUS  STEP_A_APPROVAL_DATE  STEP_A_APPROVER  STEP_B_STATUS  STEP_B_APPROVAL_DATE  STEP_B_APPROVER
      1234 APPROVED 23-Jan-2019 John Smith APPROVED 21-Jan-2019 Jane Doe


      And of course, with the original dataframe, any of APPROVAL_STATUS, APPROVAL_DATE, or APPROVER can be NA.



      What is the most elegant way to do this? I know how to do it by looping through the unique IDs, grabbing each row, creating new columns, etc.; but is there any way to do this in a more elegant way (e.g., using tidyverse)?










      share|improve this question









      $endgroup$




      I have a dataframe in R that looks like this



       ID    APPROVAL_STEP   APPROVAL_STATUS   APPROVAL_DATE     APPROVER
      1234 STEP_A APPROVED 23-Jan-2019 John Smith
      1234 STEP_B APPROVED 21-Jan-2019 Jane Doe


      I need it to look like this



       ID    STEP_A_STATUS  STEP_A_APPROVAL_DATE  STEP_A_APPROVER  STEP_B_STATUS  STEP_B_APPROVAL_DATE  STEP_B_APPROVER
      1234 APPROVED 23-Jan-2019 John Smith APPROVED 21-Jan-2019 Jane Doe


      And of course, with the original dataframe, any of APPROVAL_STATUS, APPROVAL_DATE, or APPROVER can be NA.



      What is the most elegant way to do this? I know how to do it by looping through the unique IDs, grabbing each row, creating new columns, etc.; but is there any way to do this in a more elegant way (e.g., using tidyverse)?







      r data-cleaning data-wrangling






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked 2 days ago







      user69420





























          0






          active

          oldest

          votes











          Your Answer





          StackExchange.ifUsing("editor", function () {
          return StackExchange.using("mathjaxEditing", function () {
          StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
          StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
          });
          });
          }, "mathjax-editing");

          StackExchange.ready(function() {
          var channelOptions = {
          tags: "".split(" "),
          id: "557"
          };
          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: false,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: null,
          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%2fdatascience.stackexchange.com%2fquestions%2f47175%2fr-combine-multiple-rows-of-dataframe-by-creating-new-columns-and-union-values%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 Data Science Stack Exchange!


          • 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.


          Use MathJax to format equations. MathJax reference.


          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%2fdatascience.stackexchange.com%2fquestions%2f47175%2fr-combine-multiple-rows-of-dataframe-by-creating-new-columns-and-union-values%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

          How to label and detect the document text images

          Vallis Paradisi

          Tabula Rosettana