Displaying 4 results from an estimated 4 matches for "vdergachev".
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dergachev
2006 Dec 08
1
empty pages in xyplot (2.4.0)
In 2.4.0 (and SVN) I am seeing xyplot creating empty pages for high page
counts in layout - contrary to the manual which says high page counts should
not matter. Everything works fine in 2.3.1.
library("lattice")
A<-data.frame(x=1:10, y=sin(1:10), z=round(1:10/3))
xyplot(x~y|z, A, layout=c(1,1,10))
The snippet above produces a valid plot in R 2.3.1, while in 2.4.0 and later I
see
2006 Oct 31
1
Some R questions
Hi all,
I am working with some large data sets (1-4 GB) and have some questions
that I hope someone can help me with:
1. Is there a way to turn off garbage collector from within C interface ?
what I am trying to do is suck data from mysql (using my own C
functions) and I see that allocating each column (with about 1-4 million
items) takes between 0.5 and 1 seconds. My
2006 Nov 07
1
data frame subscription operator
Hi all,
I was looking at the data frame subscription operator (attached in the end
of this e-mail) and got puzzled by the following line:
class(x) <- attr(x, "row.names") <- NULL
This appears to set the class and row.names attributes of the incoming data
frame to NULL. So far I was not able to figure out why this is necessary -
could anyone help ?
The reason I am
2006 Dec 06
4
data frame subset patch, take 2
Hi Robert,
Here is the second iteration of data frame subset patch.
It now passes make check on both 2.4.0 and 2.5.0 (svn as of a few days ago).
Same speedup as before.
Changes:
* Introduced two new functions .subassign2 and .subassign that are
complimentary to .subset2 and .subset.
* Changed x[[j]]<- assignment to x<-.subassign2(x, j, ..) to fix the problem
with the previous patch.