Memory issue

Hi,

?

First, thanks for all help so far...but I still have some problems.
Here is the code:
cumark <- read.table("k:/test/helamarkcu.txt", header=T, sep = ";")

memory.limit(size = 1897)???
attach(cumark)
vew <- as.vector(ew)
vns <- as.vector(ns)
vcu <- as.vector(cu)

fcumark <- data.frame(vew, vns, vcu)

coordinates(fcumark) <- ~vew+vns?

L1 <-round((max(vew)- min(vew))/100,0)
L2 <-round((max(vns)- min(vns))/100,0)

fcumark.interp.old <- interp.old(vew, vns, vcu,
??????????????? xo= seq(min(vew), max(vew), length = L1),
??????????????? yo= seq(min(vns), max(vns), length = L2),
??????????????? ncp = 0,?
??????????????? extrap= FALSE,
??????????????? duplicate = "mean",
??????????????? dupfun = NULL)
Then I get this;
Error: cannot allocate vector of size 351.8 Mb

When I tested with a smaller file (~2000 rows) I come to the end without
problems.

Rest of the code..

fcumark.interp.old.grid <-
as.SpatialGridDataFrame.im(as.im(fcumark.interp.old))

##? spplot(fcumark.interp.old.grid, col.regions=bpy.colors(),
sp.layout=list("sp.points", pch="+", fcumark))

slot(slot(fcumark.interp.old.grid, "grid"), "cellsize") <-
rep(mean(slot(slot(fcumark.interp.old.grid,
?? "grid"), "cellsize")), 2)

write.asciigrid(fcumark.interp.old.grid[1], "k:/test/helamarkcu.asc",
na.value = -9999)
## End run

helamarkcu.txt is a plain ascii file, looks like...
ew;ns;cu
1344628;6138662;24.0
1340104;6138880;17.0
1342246;6138946;21.0
1347259;6140911;19.0
1339968;6140932;15.0
1349906;6140987;21.0
...
..
.
(38155 rows)
Have anybody a solution? Writing result from interp.old direct to
disk/file on the "fly"?

Running R 2.7.2?and WinXP

Regards,
Mikael