Hi Eric, I don't know any way to do this in Org-mode. Here is a workaround in R that might do what you want.
#+name: luo #+BEGIN_SRC R :results output org library(ascii) df <- data.frame(c1="123456789123456789000",c2=2) df$c1 <- as.vector(df$c1) print(ascii(df),type="org") #+END_SRC #+RESULTS: luo #+BEGIN_ORG | | c1 | c2 | |---+-----------------------+------| | 1 | 123456789123456789000 | 2.00 | #+END_ORG All the best, Tom Eric Luo <eric.we...@gmail.com> writes: > t...@tsdye.com (Thomas S. Dye) writes: > > Thanks, it's clear to me with the difference between "value" and > "output" now. > > whether there is a way to tell emacs-lisp that "123456789123456789" is a > string rather than a number. > > emacs-lisp handles the output as expected if the c1 has any character > other than numbers as the following. > ,---- > | #+BEGIN_SRC R > | df <- data.frame(c1="c123456789123456789",c2=2) > | df$c1 <- as.vector(df$c1) > | df > | #+END_SRC > | > | #+RESULTS: > | | c123456789123456789 | 2 | > | > `---- > >> Aloha Eric, >> >> Eric Luo <eric.we...@gmail.com> writes: >> >>> Hi, >>> Why in the following code block, c1 was printed as scientific notation >>> rather then characters. >>> ,---- >>> | >>> | #+BEGIN_SRC R :results value >>> | df <- data.frame(c1="123456789123456789",c2=2) >>> | #+END_SRC >>> | >>> | #+RESULTS: >>> | | 1.2345678912345678e+17 | 2 | >>> `---- >> >> With :results value the results are passed from the source language into >> emacs-lisp and then displayed in the buffer. So, the representation of >> things like very large numbers depends on how that was done in >> emacs-lisp, independent of the source language conventions. In this >> case, I suspect the number was written with a formatting string and ‘%g’ >> which uses scientific notation if that is a shorter representation. >> >> >>> But if the header :results output, the result was expected. >>> ,---- >>> | >>> | #+BEGIN_SRC R :results output >>> | df <- data.frame(c1="123456789123456789",c2=2) >>> | df >>> | #+END_SRC >>> | >>> | #+RESULTS: >>> | : c1 c2 >>> | : 1 123456789123456789 2 >>> `---- >>> >> >> With :results output the results aren't translated into emacs-lisp. >> Instead, the output from the source language is collected and displayed >> in the buffer. Thus, the output conventions of the source language are >> respected. >> >> hth, > > > -- Thomas S. Dye http://www.tsdye.com
