[R] multivariate distributions

2010-08-27 Thread Rofizah Mohammad
Hi, How can I generate data from multivariate gamma distribution & multivariate beta distribution? I only found command for multivariate normal only. Many thanks in advance :) Regards Rofizah [[alternative HTML version deleted]] __ R-help@r-pr

Re: [R] scatter plot & equation

2009-11-22 Thread Rofizah Mohammad
Many thanks Duncan. I got the plot even I don't really understand the whole command.. I will study that later.. :-) Regards On Sun, Nov 22, 2009 at 4:44 PM, Duncan Murdoch wrote: > On 22/11/2009 11:27 AM, Rofizah Mohammad wrote: > >> Hi, >> >> If I have 2D da

[R] scatter plot & equation

2009-11-22 Thread Rofizah Mohammad
Hi, If I have 2D data set say (x,y) and I can do scatter plot by using plot(x,y) command. How can I add in this scatter plot the equations curve say 2X2 + 3Y2 – 6X – 7Y + 9 = 0. Regards Rofizah [[alternative HTML version deleted]] __ R-help@

[R] Plotting implicit functions in R

2009-11-12 Thread Rofizah Mohammad
Hello, How can I plot several implicit functions (F(x,y)=0) on the same figure? Regards Rofizah [[alternative HTML version deleted]] __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting g

Re: [R] Creating Sub-Matrix

2009-01-31 Thread Rofizah Mohammad
> ?Extract > ?"[" #gets to the same page > > --- in other sites: > indexing > > -- David Winsemius > > > On Jan 31, 2009, at 8:25 AM, Rofizah Mohammad wrote: > > Hello, >> >> How do I get sub-matrix? Example, I would like to get m

[R] Creating Sub-Matrix

2009-01-31 Thread Rofizah Mohammad
Hello, How do I get sub-matrix? Example, I would like to get matrix of size 3x7 from the matrix of size 4x7. Meaning that I try to exclude one row of the original matrix. Thanks -rofizah- [[alternative HTML version deleted]] __ R-help@r-projec