cant restore .Rdata

It might be the number of cons cells, rather than the vector heap size
that is too small.  Right this moment, I'm patching my copy of R to allow
up to 16000000 cons cells.  Here's the patch  (watch for the long lines):

--start-patch--

--- R-0.63.2.orig/src/unix/system.c     Thu Nov 12 08:06:02 1998
+++ R-0.63.2/src/unix/system.c  Wed Jan 27 12:53:59 1999
@@ -502,7 +502,7 @@
                else p = &(*av)[2];
                value = strtol(p, &p, 10);
                if(*p) goto badargs;
-               if(value < R_NSize || value > 1000000)
+               if(value < R_NSize || value > 16000000)
                    REprintf("WARNING: invalid language heap size ignored\n");
                else
                    R_NSize = value;
@@ -511,7 +511,7 @@
                ac--; av++; p = *av;
                value = strtol(p, &p, 10);
                if(*p) goto badargs;
-               if(value < R_NSize || value > 1000000)
+               if(value < R_NSize || value > 16000000)
                    REprintf("WARNING: invalid language heap size '%d' ignored, using default = %d\n", value, R_NSize);
                else
                    R_NSize = value;


---end-patch---

This seems to work for me.  I've now been able to load the large "dput"
file that didn't work before.

-Greg

Hi Folks,

 I loaded a couple of quite large data sets into an R session and then
quit (after saving the image).  Now I get:

Error: a read error occured
Fatal error: unable to restore saved data
 (remove .RData or increase memory)

after trying to start my R session using something like:

R --vsize XXX --nsize 1000000

For any value of XXX (I went up to 300 or 400, which is as high as I could
go.  This seems odd to me because the data sets were not that large.

In fact, the size of .RData is:

-rw-rw-r--   1 royle    royle    14848000 Jan 27 14:19 .RData

I have had much larger data sets in R before and never had this problem
(at least one that couldn't be fixed by increasing the memory).

So, it appears that my only option at this point is to delete .RData
which would be unfortunate since the functions contained therein are
the result of several days of intense hacking.....

Does anyone have any ideas?

thanks in advance,

andy

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warnes at biostat.washington.edu  |  be replaced by the ideal of service.
                               |                       Albert Einstein
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