What it does

Gemini amend adds information about the samples via PED file.

If you have a sample table in a Gemini db that looks like this:

sample_id   family_id   name      paternal_id   maternal_id   sex   phenotype   hair_color
1           1           M10475    0             0             1     1           brown
2           1           M10478    M10475        M10500        2     2           blonde
3           1           M10500    0             0             2     2           purple

and you want the change the haircolor of sample 3. And also add some information about the preferred hobbies of some samples.

You could specify the following PED file.

#family_id  name    paternal_id  maternal_id  sex  phenotype  hair_color  hobby
1           M10475  None         None         1    1          brown       fishing
1           M10478  M10475       M10500       2    2          red         biking
1           M10500  None         None         2    2          purple

this results in:

sample_id   family_id   name      paternal_id   maternal_id   sex   phenotype   hair_color   hobby
1           1           M10475    0             0             1     1           brown        fishing
2           1           M10478    M10475        M10500        2     2           red          biking
3           1           M10500    0             0             2     2           purple       .