Re: [R] Fwd: Extract element of a list based on an index value

ames = c("1100", "4", "1094", "632", "176", "187", "192", "495", "71", "343", "930" )) (d1 <-melt(xx, id= c("SibID"))) dcast(d1, SibID ~ variable, min) ------------

Re: [R] Fwd: Extract element of a list based on an index value

ames = c("1100", "4", "1094", "632", "176", "187", "192", "495", "71", "343", "930" )) (d1 <-melt(xx, id= c("SibID"))) dcast(d1, SibID ~ variable, min) ------------

Re: [R] Fwd: Extract element of a list based on an index value

Solved it: oldest<-unlist(tapply(warmerge$birth.year, warmerge$SibID,function(x) ifelse (x==min(x, na.rm=T)|is.na(x)==T,1,0))) - Corey Sparks, PhD Assistant Professor Department of Demography and Organization Studies University of Texas at San Antonio 501 West Durango Blvd Monterey Build

[R] Fwd: Extract element of a list based on an index value

Dear list, I have some data on a geneaology, here is a subset: warmerge[1:11,c(1,6,25)] Warrior SibID birth.year 11003793 2013 1926 4 2013 2024 1934 10943769 2024 1918 632 2747 2037 1928 176 2083 2039 1944 187 2085 2039 1949