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?










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    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






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      asked Nov 21 '18 at 16:58









      Jeff HammerbacherJeff Hammerbacher

      3,38822532




      3,38822532
























          1 Answer
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          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











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          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

          61.6k691153




          61.6k691153













          • 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




















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