Displaying 2 results from an estimated 2 matches for "crossprod2".
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crossprod
2007 Aug 23
1
.Call and to reclaim the memory by allocVector
...ied from the convolve2 example from the R
extension manual. Now I am computing the crossproduct of a and b, which
returns a vector of size length(a)*length(b).
The C code is at the end of this message with the modification commented.
The R code is here
----------------------------
dyn.load("crossprod2.so")
cp <- function(a, b) .Call("crossprod2", a, b)
gctorture()
a<-1:10000
b<-1:1000
gc() #i
c<-cp(a,b)
rm(c)
gc() #ii
--------------
When I run the above code in a fresh start R (version 2.5.0)
the gc() inforamation is below. I report the last column ("max
used (...
2007 Aug 23
1
.Call and to reclaim the memory by allocVector
...ied from the convolve2 example from the R
extension manual. Now I am computing the crossproduct of a and b, which
returns a vector of size length(a)*length(b).
The C code is at the end of this message with the modification commented.
The R code is here
----------------------------
dyn.load("crossprod2.so")
cp <- function(a, b) .Call("crossprod2", a, b)
gctorture()
a<-1:10000
b<-1:1000
gc() #i
c<-cp(a,b)
rm(c)
gc() #ii
--------------
When I run the above code in a fresh start R (version 2.5.0)
the gc() inforamation is below. I report the last column ("max
used (...