RE: [R] plotting percent of incidents within different 'bins'

You want: tapply( Outcome, predictor, mean ) Bendix Carstensen -- Bendix Carstensen Senior Statistician Steno Diabetes Center Niels Steensens Vej 2 DK-2820 Gentofte Denmark tel: +45 44 43 87 38 mob: +45 30 75 87 38 fax: +45 44 43 07 06 [EMAIL PROTECTED] www.biostat.ku.dk/~bxc

Re: [R] plotting percent of incidents within different 'bins'

You can use 'cut' to create the breaks.. Actually there are 8 in the 3-4 range: Outcome predictor 10 1 21 2 31 2 40 3 50 3 60 2 71 3 81 4 91 4 10

RE: [R] plotting percent of incidents within different 'bins'

I was doing something very similar. I found it tricky to work out how to find a confidence interval for the 'percentage' of the outcome (I call it proportion). Some of my bins had all zeroes or all ones, so I couldn't work out how to make a variance that was sensible. Also some bins had few