How to use qqman using own data?

Question

[nbe]

I'm quite new to R so I installed the qqman package and everything and it says that the command to generate a Manhattan plot is the following:

manhattan(gwasResults, chr="CHR", bp="BP", snp="SNP", p="P" )

How can I replace their default data (gwasResults) with my own file and what type of file does it take? Is it an association file generated from PLINK?

Thanks!

[Fabio Marroni]

It is written in the first page of the manual: they are "Simulated GWAS results as obtained from plink --assoc." You can find the manual here