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Hello, I am getting pretty poor rJava call performance > system.time(for (i in 1:1000) J("java.lang.Double")$parseDouble(as.character(i))) user system elapsed 4.884 0.000 4.900 i.e. 5 milliseconds per very simple...
Hello, I'd be very grateful for help with some ggplot2's stat_density2d issues. First issue is with data limits. xlim() and ylim() doesn't seem to work; instead, estimates (and plotting) seems to be constrained to range(x...
Hello, Thank you for probably not so new question, but i am new to R. Does any of packages have something like glm+regularization? So far i see probably something close to that as a ridge regression in MASS but...
PS caching reference to the class doesn't change anything fundamentally: clazz <- J("java.lang.Double") system.time( for( i in 1:1000) clazz$ parseDouble(as.character(i))) user system elapsed 3.788 0.000 3.790 Java parsing is...
Sorry. i forgot the lines with parameters for my multivariate normal simulation. here's the code for data simulation i used: ======================= sigm1 <- diag(c(30,50)) sigm2 <- diag(c(5,3)) mu1 <- c(10,15) mu2 <- c(80,60) sample...
The "low level" seems to be much-much better though... not sure why the difference would be so fundamental... f <- function() system.time( for( i in 1:1000) .jcall("java/lang/Math", returnSig="D", "abs", as.numeric(i) ) ) > f() user...
Thanks David. let's say sample data (two-modal multivariate normal simulation, needs mvtnorm package) ========================= library(mvtnorm) sample <- round(rbind(rmvnorm(100,mu1,sigm1),rmvnorm(100,mu2,sigm2))) sample <- sample[! (sample[,1] <1 | sample[,2] <1 | sample[,1]> 100 | sample...
Thank you. On Thu, Mar 1, 2012 at 9:58 AM, Bert Gunter <gunter.berton at gene.com> wrote: > Google is your friend! -- as usual. > > If you had searched on "glm with regularization" you would have bumped > into the glmnet...
Another question: how do I ensure rJava is bytecode-compiled? I seem to re-install the package with setting compilePKGS(T) before i install it again, but most of rJava functions however seem to come back still as not bytecode...
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