search for: binvar

Hello all, I have a very large file (280k lines) containing three comma separated variables. The first variable is a 0 or 1 depicting a pass or fail. The other two are X and Y coordinates. Is there a good way I can represent this data in a chart/plot form other than using a 3d histogram? If I need to use the histogram, should I base my chart off the example contained in the RGL package? Thanks a

Dear R Users, I would like to know is there any package to create a plot like this? http://dl.dropbox.com/u/5409929/cs1160521f01.gif X axis is categorical. And the positions of the points are corresponding to the frequency. (similar to violinplot) Thank you. Regards, CH -- CH Chan

...ch I have called "High", "Medium" and "Low". My question: do I need to use a numerical coding scheme for the categorical variables as required by some statistical software packages, with some sort of numeric dummy-variable coding? I am using: glm(binvar~x+y+z, family=binomial(link="logit")) Thanks, Ravi Kulkarni -- View this message in context: http://n4.nabble.com/Coding-of-categorical-variables-for-logistic-regression-tp1694250p1694250.html Sent from the R help mailing list archive at Nabble.com.