search for: farat

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Did you mean: arat
2006 Oct 23
2
getting the by() function to work properly
...f3=function(x) { + + twodied=x[died==2,]; + twosaved=x[saved==2,]; + hit2=x[saved==2 & choice=="+",]; + fa2=x [died==2 & choice=="+",]; d2=(qnorm(((nrow(hit2))/(nrow(twosaved))))-qnorm((nrow(fa2))/(nrow(twodied)))); + hitrate=((nrow(hit2))/(nrow(twosaved))); FArate=((nrow(fa2))/(nrow(twodied))); + zhit2=qnorm(((nrow(hit2))/(nrow(twosaved))));zfa2=qnorm((nrow(fa2))/(nrow(twodied)));B2= -.5*(zhit2+zfa2); + tp2=mean(twosaved$resp); + ta2=mean(twodied$resp); + tpsd2=sd(twosaved$resp); + tasd2=sd(twodied$resp); + dmj2=((tp2-ta2)/((tasd2+tpsd2)/2)); +...