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Hi all, I am trying to test the new adehabitat package but I have a problem with a linked library, "gpclib". When I try do install it I have this output: install.packages("gpclib", dependencies=TRUE, repos="http://cran.cnr...

Hello, I'm tring to make a linear discriminant analysis eith lda (MASS). In the value of the resulting object is there information about the value of the centroids of the discriminated group for the discriminant functions? Thank you in...

Hi all, I have a little question about linear discriminant analysis in R. I have a dataframe with datas groupped by 4 cluster. I'd like to know if there is a command that give 4 predictive classification groups functions...

Hi list, I'm looking about lda function. I'd like to know how calcolate the value of the discriminant functions for the original datas. I see that in the result object "lda" there is $scaling a matrix which transforms...

Hi all, I have a little problem selecting some rows from a data.frame. I'd like to select the rows where a determinated column take a partivolar value. For example: tab id x y 1 24-2005 1621814 4834991...

Hi, I'd like plot a bar graphic of a array. I'd like to have the values of the single columns as juxtaposed bars (like in "barplot" with beside=TRUE) and I'd like to have the values of...

Hi, I'd like plot a bar graphic of a array. I'd like to have the values of the single columns as juxtaposed bars (like in "barplot" with beside=TRUE) and I'd like to have the values of...

Hi, I'm writing for a little help. I have a dataframe with same NA value and I'd like to obtain the means of the value of a coloumn grouped by the levels of a factor coloumn of the...

Hi all, I'm tring to download the gpclib library but I don't find it in the old repository install.packages(c("gpclib"), dependencies=TRUE, repos="http://cran.cnr.berkeley.edu/") Avviso in install.packages(c("gpclib"), dependencies = TRUE...

Thanks all of you for the help! > >> Hi all, >> I have a little problem selecting some rows from a >> data.frame. >> I'd like to select the rows where a determinated >> column take a >> partivolar value. >> >> For example: >> tab >> id...

Hi all, I have a simple question: I have a data.frame like this: id x y 1 50 1647685 4815259 2 50 1647546 4815196 3 50 1647454 4815294 4 50 1647405 4815347 5 50 1647292 4815552 6 50 1647737...

Hi all, I have a simple question: I have a character vector like this [1] "10_1" "1_1" "11_1" "2_1" "3_1" "4_1" "5_1" "6_1" "7_1" "8_1" [11] "9_1" "1_3...

Hi my OS is Linux Debian distribution, my R vers is 2.4.0 Patched (2006-11-25 r39997) I tried several repositories but the output is ever the same Thank yor for your help All the best Leonardo Prof...

Thanks very much! Best of all, Leonardo Alle 10:52, venerd? 25 marzo 2005, Dimitris Rizopoulos ha scritto: > you should look at the 'na.rm=FALSE' argument of '?mean()', i.e., > > x <- rnorm(100); x[sample(100, 10)] <- NA > f...

Hi, I have the same problem. I found a solution but I think there is something of more simple and correct. I take a group and I put 0 the values of the other group, after I use the function...