Re: [R] constructing nxn matrices involving calculations& conditions based on other tables

Thanks Marco, sorry if my explanation was not the best, but your code did the trick. I managed to adjust the code to get exactly what I wanted. Thank you! Luisa On Mon, May 30, 2011 at 4:20 PM, Jabba wrote: > Hi Luisa, > > it was really difficult to manage to understand what you need. Assum

[R] constructing nxn matrices involving calculations& conditions based on other tables

Dear R-users, I am having trouble constructing nxn matrices involving calculations& conditions based on other tables. Below I describe a simple example of what I am trying to do: Given the Table A (n x m): Species1 Species2 X A1,1 A1,2 Y A2,1 A2,2 Z A3,1 A3,2 I want to crea

Re: [R] trouble with summary tables with several variables using aggregate function

> > > An alternative to the reshape() function is the reshape2 package, > > which has a function dcast() that allows you to rearrange the data > > frame as you desire. > > > > library(reshape2) > > dcast(dtable, Var1 + Var2 ~ Var3) > > Using Freq as value colu

[R] trouble with summary tables with several variables using aggregate function

Dear all, I am having trouble creating summary tables using aggregate function. given the following table: Var1 Var2Var3 dummy S1 T1 I 1 S1 T1 I 1 S1 T1 D1 S1 T1 D1 S1 T2 I 1 S1