## TODO

* Parse the value of kurtosis (computed for residuals).
* Fix the polygenic analysis with `screen` argument.
* Guess the chromosomes; check out on parallel computing
* Update DESCRIPTION and R code to switch from Depends to Imports.

## Done 

* Work on the residuals from the polygenic model. See documentation on 
  `polygenic` SOLAR comand (`-residinor` option).
* Make `dat50` SNP data available in plink format.  
