[R] Frequency Block Chart

Hi, friends. I'd like to illustrate the relationship between two categorical variables with a block chart (a three-dimensional bar chart) with the height of the blocks being proportional to the frequencies. Is there a way to do it with R? Thanks in advance Angelo [[alternative HTML ver

Re: [R] Matrix reduction

Well, I mean to use the elimination method to transform the matrix, for example, of the coefficients of a linear equations system. AS Il giorno 06/apr/2013, alle ore 19:43, Angelo Scozzarella Tiscali ha scritto: > Hi everyone, > > I asked myself if exists a way to get a rows (o

[R] Matrix reduction

Hi everyone, I asked myself if exists a way to get a rows (or columns) matrix reduction with R. My goal is for education. Thanks in advance AS __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting

[R] Graph from Glantz

Hi, I'd like to draw a graph like this one from Stanton Glantz book, Primer of Biostatistics. Thanks Angelo __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org

[R] Random Sampling

When the population values are not distributed symmetrically about the mean, reporting the mean and standard deviation can give the reader an inaccurate impression of the distribution of values in the population. I'd like generating random samples with same mean and standard deviation, but not

Re: [R] Random Sample with constraints

For example, I want to simulate different populations with same mean and standard deviation but different distribution. Il giorno 03/mar/2013, alle ore 17:14, Angelo Scozzarella Tiscali ha scritto: > Dear R friends, > > I'd like to generate random sample (variable size and ra

[R] Random Sample with constraints

Dear R friends, I'd like to generate random sample (variable size and range) without a specified distribution but with given mean and standard deviation. Could you help me? thanks in advance Angelo __ R-help@r-project.org mailing list https://stat.e

[R] T-Test Help

Hi, I want to calculate the T-Test from means and sd. How can I do it? Thanks Angelo Scozzarella __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting

[R] T Test

Hi, I want to calculate the T-Test from means and sd. How can I do it? Thanks Angelo Scozzarella __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting

[R] T-test

Hi, How can I make a t-test if I haven't got all data set but I know the numbers of subjects for each group, the mean and di standard deviation for each group? Thanks Angelo Scozzarella __ R-help@r-project.org mailing list

[R] ANOVA

Hi, How can I make an ANOVA if I haven't got all data set but I know the numbers of subjects for each group, the mean and di standard deviation for each group? Thanks Angelo Scozzarella __ R-help@r-project.org mailing list

[R] One way ANOVA

Hi, There is a command or a function for One way ANOVA if I know the numbers of subjects for each group, the mean and di standard deviation for each group? Thanks Angelo Scozzarella __ R-help@r-project.org mailing list https://stat.ethz.ch

[R] Point-biserial correlation

Hi, what the command for the point-biserial correlation? Thank Angelo Scozzarella __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and

[R] Histogram

Hi, how can I treat data organised in classes and frequencies? Ex. class frequency 20-23 9 23-25 7 26-28 5 29-31 5 32-34 3 Thanks Angelo Scozzarella

[R] TextMate and R

Hi, how can I use TextMate as editor for R? Thanks Angelo Scozzarella __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide

[R] Function Error

(N/2-sum(x$counts[1:(cl-1)]))/(x$densit[cl]*N) } else median(x) } thanks Angelo Scozzarella __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide

[R] Editor for Mac

Thanks for the answers, but I'm looking for an editor like Tinn-R. Is there something like it for Mac? Angelo Scozzarella __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://

[R] Editor fpr Mac OS

Hi, is there a good editor for Mac Os? Thank Angelo Scozzarella __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented

[R] Sorting a matrix

Hi, I want to sort a matrix by a specific variable without changing the row binding between variables. Ex. NameSex Age FredM 24 JohnM 18 MaryF 21 ordered by Age NameSex Age JohnM 18 Ma