search for: abyb

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2008 Jul 20
0
Off topic: SS formulae for 3-way repeated measure anova (for when aov() fails)
...==round(summary(this_aov)[[4]][[1]]$Sum[1], 10) #ok! #Get ss.d.error d.cells = aggregate(x, list(d=d, sub=sub), mean) ss.d.cells = levs.a*levs.b*sum((d.cells$x-grand.mean)^2) ss.d.error = ss.d.cells - ss.d - ss.subs round(ss.d.error, 10)==round(summary(this_aov)[[4]][[1]]$Sum[2], 10) #ok! #Get ss.aBYb aBYb.means = aggregate(x, list(a=a, b=b), mean) ss.aBYb = N*levs.d*sum((aBYb.means$x-grand.mean)^2) - ss.a - ss.b round(ss.aBYb, 10)==round(summary(this_aov)[[5]][[1]]$Sum[1], 10) #ok! #Get ss.aBYb.error aBYb.cells = aggregate(x, list(a=a, b=b, sub=sub), mean) ss.aBYb.cells = levs.d*sum((aBYb.cell...
2008 Nov 30
2
Randomization of a two-way ANOVA?
Hello list, I wish to perform a randomization test on the F-statistics of a 2 way ANOVA but have not been able to find out how to do so - is there a package / function that can perform this that I am unaware of? FactorA has 6 levels (0,1,2,3,4,5) whereas FactorB has 3 (1,2,3). A sample: Resp. FactorA FactorB 2 0 2 3 1 2 1 2 2 0 3 2 0 4 2 0 5 2 4 0 1 6 1 1 1 2 1 0 3 1 1 4 1 0 5 1 2 0 2 3 1 2 1
2004 Jul 18
2
a problem: factors, names, tables ..
Hi all, I am *completely* lost in trying to solve a relatively simple task. I want to compute the relative number of occurences of an event, the data of which sits in a large table (read from file). I have the occurences of the events in a table 'tt' 0 2 10 11 13 14 15 15 6 1 3 8 15 10 .. meaning that event of type '0' occurs 15 times, type '2' occurs 6 times