[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