Jeroen Van Houtte wrote:

To display many small graphics one above the another (like Edward Tufte's sparklines), I'd like to use layout in the graphics package with more than 15 rows.

I found that the limit of 15 is set by
#define MAX_LAYOUT_ROWS 15

Well, what about replacing 15 by something like 100?
The point is that you should look where MAX_LAYOUT_ROWS is used for calculations and whether there might result any problem after increasing it.


in https://svn.r-project.org/R/trunk/src/include/Graphics.h
but I 'm not familiar enough with compilers to modify this.

Looking into your mail header [telling us you are using Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1)], I see you are using Windows and probably never have compiled R yourself (please read the posting guide which tells you to mention relevant information such as the OS in use).


Please read the file R/src/gnuwin32/Install.
It tells you how to compile R yourself and which tools are required.

Uwe Ligges




Thank you for all help
Jeroen

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