{smcl} {* *! 1.0 07Feb2012}{...} {vieweralsosee "" "--"}{...} {viewerjumpto "Syntax" "pmidfetch##syntax"}{...} {viewerjumpto "Description" "pmidfetch##description"}{...} {viewerjumpto "Usage" "pmidfetch##usage"}{...} {cmd:help dataplink}{right: (version 1.0) } Daniel Elwood Cook {Danielecook@gmail.com} {right: www.Elwoodcook.com} {hline} {pstd} {bf:dataplink} {hline 2} {bf: Import .ped and .map files from recoded, tab delimited, plink files into Stata} {marker syntax}{...} {title:Syntax} {phang} {cmd:dataplink} using {it: filename (Do not include .PED or .MAP)} {marker description}{...} {title:Description} {p 5 5 10} {cmd:dataplink} is a simple program for importing recoded data from plink. Dataplink imports genotypic from {bf:.ped} files and also imports variable names (snp names) from {bf:.map} files. {p 5 5 10} Data from plink must be exported using the following commands: {col 10}--recode / --recode12 {col 10}--tab {p 5 5 10} Once your data is exported from plink, you should have two files of the same name but with different extensions: {bf:.ped} and {bf:.map}. The {bf:.ped} file contains genotype data while the {bf:.map} file contains the names of the SNPs. {p 5 5 10}{bf:! Important:} When you specify the {it:filename} do not use extensions (i.e. do not add {bf:.ped} or {bf:.map}). Dataplink will look for a .map and .ped file of the same name {marker usage}{...} {title:Usage} {p 5 5 10}{bf:Example Input} {p 10 5 10}dataplink using "C:/my/dir/chrom1segment" {p 5 5 10}{bf:! Important:} Notice that the file extension {bf:.map} and {bf:.ped} are not included! {p 5 5 10}{bf:! Important LIMIT:} Stata can import a maximum of 32,767 variables in SE and MP flavors and 2,047 in IC. This means you can only import ~32,000 SNPs and ~2,000 depending on your version.