search for: gialli

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2003 Feb 28
0
chi square
...I want to do an homogeneity test on seed colour segregation. I have green and yellow seed in an a priori expected segregation ration of 3:1. green<-c(85,130,110,107,70,45,30) yellow<-c(26,41,51,35,36,16,11) chisq.test(rbind(green,yellow)) Pearson's Chi-squared test data: rbind(verdi, gialli) X-squared = 6.2672, df = 6, p-value = 0.3939 That's fine. Now I want to tell chisq.test that I have my a priori expected frequncies: prob.green<-rep(3/4,7) prob.yellow<-rep(1/4,7) chisq.test(rbind(green,yellow), p=rbind(prob.green,prob.yellow)) Pearson's Chi-squared test data:...