search for: st1_capt2

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Did you mean: st1_capt1
2012 May 29
1
correlation matrix only if enough non-NA values
...ver the number of missing data per column. What I want to do is to have exactly the same correlation matrix, but only with coefficients calculated with at least half of non missing data in the column (in the example, at least 5 non NA values out of 10). table <- data.frame(ST1_capt1=rnorm(1:10),ST1_capt2=c(1,2,3,4,NA,NA,7:9,NA), ST2_capt1=c(NA,NA,NA,NA,NA,6:10),ST2_capt2=c(21,NA,NA,NA,25:30), ST3_capt1=c(1,NA,NA,4:10),ST3_capt2=c(NA,NA,NA,NA,NA,NA,NA,NA,NA,NA)) cormatrix <- cor(table[,c(1,3,5)],use="pairwise.complete.obs") To solve this problem, I think it would be useful to use...