search for: allp

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2010 Mar 18
2
Pedigree / Identifying Immediate Family of Index Animal
...ne has suggestions there I would appreciate this as well. Thanks in advance. Code to calculate generations forward and backward: #queryIds holds the unique Ids for parents of the index animals queryIds = unique(c(ped$Sire, ped$Dam)); for(i in 1:gens){ if (length(queryIds) == 0){break}; #allPed is the dataframe with Id,Dam,Sire and Sex for animals in our colony newRows <- subset(allPed, Id %in% queryIds); queryIds = c(newRows$Sire, newRows$Dam); ped <- unique(rbind(newRows,ped)); } #build forwards #when calculating children, queryIds holds the Ids of the previous gen...
2006 Jul 31
2
Problem with allp ossible combination.
Dear R Users, Suppose I have a dataset like this: a b 39700 485.00 39300 485.00 39100 480.00 38800 487.00 38800 492.00 39300 507.00 39500 493.00 39400 494.00 39500 494.00 39100 494.00 39200 490.00 Now I want get a-b for all possible combinations of a and b. Using two 'for' loop it is easy to calculate. But problem arises when row length of the data set is