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plink:Error: Line X of .ped file has fewer tokens than expected.

运行命令plink --file test1 --het --out test_het出现的报错:"Error: Line 135 of .ped file has fewer tokens than expected." 出现这种报错有两种原因: 1、map文件的SNP数量与ped的数量对应不上; 2、缺失值少了一个0,如下图所示: 这种情况解决办法就是把另外一个0补充上,变成00: