Does R have a string-like object that exposes a file API?












1















It's sometimes convenient to write a string to an in-memory object and then pass that object to functions in place of a file handle. In Python, there's StringIO. Does R have something equivalent?










share|improve this question



























    1















    It's sometimes convenient to write a string to an in-memory object and then pass that object to functions in place of a file handle. In Python, there's StringIO. Does R have something equivalent?










    share|improve this question

























      1












      1








      1








      It's sometimes convenient to write a string to an in-memory object and then pass that object to functions in place of a file handle. In Python, there's StringIO. Does R have something equivalent?










      share|improve this question














      It's sometimes convenient to write a string to an in-memory object and then pass that object to functions in place of a file handle. In Python, there's StringIO. Does R have something equivalent?







      r string file






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 21 '18 at 16:58









      Jeff HammerbacherJeff Hammerbacher

      3,38822532




      3,38822532
























          1 Answer
          1






          active

          oldest

          votes


















          4














          Something like:



          con <- textConnection("the_thing_i_am_writing_to", "w")

          cat("Some text without a newline", file = con, append = TRUE)
          cat("more text with two newlinesnn", file = con, append = TRUE)

          writeLines(rownames(mtcars), con = con)

          cat("this is after the car names", file = con, append = TRUE)

          close(con)

          str(the_thing_i_am_writing_to)
          ## chr [1:35] "Some text without a newlinemore text with two newlines" "" "Mazda RX4" "Mazda RX4 Wag" ...


          (the_thing_i_am_writing_to gets created in the environment for you)






          share|improve this answer
























          • Thanks, I did not know about textConnection!

            – Jeff Hammerbacher
            Nov 21 '18 at 17:06













          • 👍 def view the help on it. it has an encoding parameter that may be needed if you're dealing with various locales or want to ensure UTF-8.

            – hrbrmstr
            Nov 21 '18 at 17:08











          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%2f53417089%2fdoes-r-have-a-string-like-object-that-exposes-a-file-api%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









          4














          Something like:



          con <- textConnection("the_thing_i_am_writing_to", "w")

          cat("Some text without a newline", file = con, append = TRUE)
          cat("more text with two newlinesnn", file = con, append = TRUE)

          writeLines(rownames(mtcars), con = con)

          cat("this is after the car names", file = con, append = TRUE)

          close(con)

          str(the_thing_i_am_writing_to)
          ## chr [1:35] "Some text without a newlinemore text with two newlines" "" "Mazda RX4" "Mazda RX4 Wag" ...


          (the_thing_i_am_writing_to gets created in the environment for you)






          share|improve this answer
























          • Thanks, I did not know about textConnection!

            – Jeff Hammerbacher
            Nov 21 '18 at 17:06













          • 👍 def view the help on it. it has an encoding parameter that may be needed if you're dealing with various locales or want to ensure UTF-8.

            – hrbrmstr
            Nov 21 '18 at 17:08
















          4














          Something like:



          con <- textConnection("the_thing_i_am_writing_to", "w")

          cat("Some text without a newline", file = con, append = TRUE)
          cat("more text with two newlinesnn", file = con, append = TRUE)

          writeLines(rownames(mtcars), con = con)

          cat("this is after the car names", file = con, append = TRUE)

          close(con)

          str(the_thing_i_am_writing_to)
          ## chr [1:35] "Some text without a newlinemore text with two newlines" "" "Mazda RX4" "Mazda RX4 Wag" ...


          (the_thing_i_am_writing_to gets created in the environment for you)






          share|improve this answer
























          • Thanks, I did not know about textConnection!

            – Jeff Hammerbacher
            Nov 21 '18 at 17:06













          • 👍 def view the help on it. it has an encoding parameter that may be needed if you're dealing with various locales or want to ensure UTF-8.

            – hrbrmstr
            Nov 21 '18 at 17:08














          4












          4








          4







          Something like:



          con <- textConnection("the_thing_i_am_writing_to", "w")

          cat("Some text without a newline", file = con, append = TRUE)
          cat("more text with two newlinesnn", file = con, append = TRUE)

          writeLines(rownames(mtcars), con = con)

          cat("this is after the car names", file = con, append = TRUE)

          close(con)

          str(the_thing_i_am_writing_to)
          ## chr [1:35] "Some text without a newlinemore text with two newlines" "" "Mazda RX4" "Mazda RX4 Wag" ...


          (the_thing_i_am_writing_to gets created in the environment for you)






          share|improve this answer













          Something like:



          con <- textConnection("the_thing_i_am_writing_to", "w")

          cat("Some text without a newline", file = con, append = TRUE)
          cat("more text with two newlinesnn", file = con, append = TRUE)

          writeLines(rownames(mtcars), con = con)

          cat("this is after the car names", file = con, append = TRUE)

          close(con)

          str(the_thing_i_am_writing_to)
          ## chr [1:35] "Some text without a newlinemore text with two newlines" "" "Mazda RX4" "Mazda RX4 Wag" ...


          (the_thing_i_am_writing_to gets created in the environment for you)







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 21 '18 at 17:03









          hrbrmstrhrbrmstr

          61.7k693153




          61.7k693153













          • Thanks, I did not know about textConnection!

            – Jeff Hammerbacher
            Nov 21 '18 at 17:06













          • 👍 def view the help on it. it has an encoding parameter that may be needed if you're dealing with various locales or want to ensure UTF-8.

            – hrbrmstr
            Nov 21 '18 at 17:08



















          • Thanks, I did not know about textConnection!

            – Jeff Hammerbacher
            Nov 21 '18 at 17:06













          • 👍 def view the help on it. it has an encoding parameter that may be needed if you're dealing with various locales or want to ensure UTF-8.

            – hrbrmstr
            Nov 21 '18 at 17:08

















          Thanks, I did not know about textConnection!

          – Jeff Hammerbacher
          Nov 21 '18 at 17:06







          Thanks, I did not know about textConnection!

          – Jeff Hammerbacher
          Nov 21 '18 at 17:06















          👍 def view the help on it. it has an encoding parameter that may be needed if you're dealing with various locales or want to ensure UTF-8.

          – hrbrmstr
          Nov 21 '18 at 17:08





          👍 def view the help on it. it has an encoding parameter that may be needed if you're dealing with various locales or want to ensure UTF-8.

          – hrbrmstr
          Nov 21 '18 at 17:08




















          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%2f53417089%2fdoes-r-have-a-string-like-object-that-exposes-a-file-api%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 change which sound is reproduced for terminal bell?

          Title Spacing in Bjornstrup Chapter, Removing Chapter Number From Contents

          Can I use Tabulator js library in my java Spring + Thymeleaf project?