similar to: mean and array

Displaying 20 results from an estimated 2000 matches similar to: "mean and array"

2002 Mar 21
1
help with print and ways to display results
Hi all, I have some (stupid) problems to display results and i don't find a solution. 1- res<-c(1,2,3) I would like to display >Results are 1 2 3 The following command cat(paste("Results are ",res,"\n")) give me >my results are 1 my results are 2 my results are 3 2- res<-cbind(c(1,2),c(2,3)) I would like to display >Result is the matrix 1 2
2002 Aug 20
4
plot and bg
Hi all, I would like to plot some points and define the bg color of my graphics. But the bg parameter set is defined for the. whole graphic. In fact, i would like to use something like : box(bg=gray(0.9)). So, the background concerns only the plot region and not the main title, the x title and the y title. The option col for the function box() concerns the contour and there is no option
2002 Feb 06
3
Help plot
Hello, I would like plot a vector and want to specify the Xticks which will be displayed. Is it possible ? For example, suppose that x is a vector of length 3. I just want the Xticks (and the corresponding labels) for 1 2 and 3 to be displayed ( and not 1, 1.5, 2,2.5, ....) . Thanks -- -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- Olivier MARTIN PhD student
2001 Nov 13
2
plot and its options
Hi all, I have some some difficulties to use plot and its options. This is what i would like to do. I want to put three plot in a same window so i use par(mfrow=c(1,3)) and i obtain three columns for my three graphics. But, i would like that the two first take 90% of the window and the last 10%. Could anyone give me a soultion?? Best regards, Olivier --
2001 Mar 15
3
outer
Dear r-plus users, i would like to use outer in the following case outer(x,y,FUN="fun") i suppose that my function fun is of the following form: fun<-function(x,y) { if(y>x) return(x+y) if(y<=x) return(0) } My problem is that the command outer(x,y,FUN="fun") return me a null matrix instead of an upper triangular matrix. Is somebody have a solution ? Thanks for your
2002 Feb 26
3
a trick ??
Dear R users, Suppose i have an A square matrix rxr. I want to obtain a block matrix B (pxr,pxr) where the p diagonal blocks are A and the others values are 0. I would like to do something like : diag(A,ncol=pr, nrow=pr) How can i do it ?? Thanks in advance, Olivier. -- -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- Olivier MARTIN PhD student phone: (33) 04
2001 Mar 30
1
SVM
Hi all, I would like to try SVM method. Is somebody know if there are available R or S scripts. Thanks -- -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- Olivier MARTIN phone: (33) 04 76 61 53 55 Projet IS2 06 08 67 93 42 INRIA Rhone-Alpes fax : (33) 04 76 61 54 77 655, Av. de l'Europe Montbonnot
2001 Mar 30
1
SVM support vector machine
Hi all, sorry for my previuos question that was incomplete... i would like to test the SVM (support vector machine) algorithm? is somebody know if there are available program for R or S? thanks... -- -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- Olivier MARTIN phone: (33) 04 76 61 53 55 Projet IS2 06 08 67 93 42 INRIA Rhone-Alpes
2001 Oct 02
2
R and Java
Daer all, Before to expose my problem, this the configuartion of my environment. I use the version 1.2.1 of R with a limux system (redhat) I have installed SJava (from omeghat) package successfully. So, i wanted to try an example (calc.R) that is provided in the library. This is the message I obtained: Error in isJavaInitialized("Java virtual machine has not been initialized. Call
2001 Oct 01
3
save plot graph
Dear all, I have a lot plot graphs and i would like to save them. One solution is to use the grab function with xv. But it is tedious.... So is there a R function that can save automatically the result of a plot in a gif or ps or bmp file Thanks Olivier -- -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- Olivier MARTIN phone: (33) 04 76 61 53 55 Projet IS2
2001 May 23
2
image with R
Hi all, i would like to analyze some images with R. For example, i have a tif image (16 bit=2^16 values) that i convert in ascii file (8 bit =256 values only) so it is easy to work under R with image() function. But, i would like to keep my image with 2^16 values... how can i do to load my tif image in my workspace? Do you know if there is a package for analysis image ? Thanks Olivier --
2002 May 21
1
help with par
Dear R-users, Using the plot function, I would like that axes are [-1,1] for x and [-1,1] for y. But when I use xlim or ylim, it adds automaticaly a small space (i.e. [-1.25,1.25]). I suppose that i have to use the fuction par() but i don't find the good parameter for this problem. So, how can i define the axes to be exactly [-1,1]. Thanks Olivier --
2002 Mar 29
1
help with lme function
Hi all, I have some difficulties with the lme function and so this is my problem. Supoose i have the following model y_(ijk)=beta_j + e_i + epsilon_(ijk) where beta_j are fixed effects, e_i is a random effect and epsilon_(ijk) is the error. If i want to estimate a such model, i execute >lme(y~vec.J , random~1 |vec .I ) where y is the vector of my data, vec.J is a factor object
2001 Jul 04
3
a little probleme
Hi all, i would like to find the best way to resolve the following problem. Suppoose i have a vector x of length N with k different elements. length(x)=N u<-unique(x) length(u)=k I would like to get a matrix M with k rows and N columns such that: in each line i (i=1,...,k), which(x%in%u[i]) is equal to 1 and 0 else. Thanks for your help. Olivier --
2002 Apr 03
0
help on lme and variance estimation
Hi all, I have a random effect model that can be written as y_{ij} = \beta +\alpha_i+ \epslion_{ij} where \alpha_i ~ N(0,\sigma^2_effect) and \espilon_{ij} ~ N(0,\sigma^2_error) and i compute res<-lme(data~1,data=Data,random=~1 | veci) The estimation of \sigma_error is given by res$sigma but I don't understand how i can find the estimation of \sigma _effect with the object res (I
2002 May 08
2
TCLTK and windows
Hi all, Is it possible to use the R tcltk library with windows ? Thanks -- -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- Olivier MARTIN PhD student phone : (33) 04 76 61 53 55 Projet IS2 06 08 67 93 42 INRIA Rhone-Alpes fax : (33) 04 76 61 54 77 655, Av. de l'Europe Montbonnot
2002 Aug 19
1
latex for xlab
Hi all, I don't find the solution to my problem . I represent some points and i would like a title for the x axis. I would like to write log_2 where 2 is a subscript of log. I think i have to use the functions parse or expression but i have some difficulties to understand how i should use them. Thanks --
2001 Jul 05
1
tcltk AND R
Hi all, could somebody indicate me a tcltk tutorial for beginners with some examples for R. Thanks, Olivier -- -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- Olivier MARTIN phone: (33) 04 76 61 53 55 Projet IS2 06 08 67 93 42 INRIA Rhone-Alpes fax : (33) 04 76 61 54 77 655, Av. de l'Europe Montbonnot
2002 Jul 06
5
about image and rgb
Hi all, I have a 16 bit image (TIFF) and i want to analyse the pixels distribution. So, i obtain a matrix which values are between 0 and 2^16 -1. Now i would like to represnt this image with the fucntions rgb() and image(). I am not sure , but i think that only 256 colors are available. So is there a solution to represent all the palette of the colors or i have to limit the representations with
2001 Apr 30
2
R mode for emacs
Hi all, I wonder if there is a R mode for emacs which highlights the R syntax. If there is one, I would be interested in downloading the latest version . regards, Olivier -- -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- Olivier MARTIN phone: (33) 04 76 61 53 55 Projet IS2 06 08 67 93 42 INRIA Rhone-Alpes fax : (33) 04 76