[R] printing reals from C with digits
otoomet at econ.dk
Wed Jan 29 09:31:24 CET 2003
I want to print real numbers in C code with different values for
digits. How to do that?
As I have understood, what I should do is to call
which calls FormatReal(), that one suggests the parameters (width,
decimal places and exponential form). FormatReal() includes
eps = pow(10.0, -(double)R_print.digits);
So I guess I have to change the value of R_print.digits.
R_print.digits is defined in include/Print.h in the package source,
but unfortunately the installed version (in /usr/lib/R/include/R_ext) is
quite a different. I guess that is because the structure is not meant
to be accessible by user, although some system routines alter
So are there any good way to achieve it?
This R 1.5.0 on an RH 6.2 computer if that matters.
Thanks for help.
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