I am new to plink, and I am following [this tutorial](http://zzz.bwh.harvard.edu/plink/tutorial.shtml#t2):

But I cannot even open the file.

I am using a PLINK 1.9 on Windows, 64 bit. I have put the hapmap1.ped and hapmap1.map in the folder which I store PLINK.

I used the below command to add the folder to the path

    path = %PATH%;C:\Users\jh3903\Desktop\plink_win64

And then when I run the below command, it return my PLINK version is `v1.9b04.5 64-bit (25Jul2017)` and with some other information

    plink

I then run the below command 

    plink --file hapmap1

This is the error I got says 

> 16306 MB RAM detected; reserving 8153 MB for main workspace.   
> Error: Failed to open hapmap1.map

Does anyone have a clue about this?






  [1]: http://zzz.bwh.harvard.edu/plink/tutorial.shtml#t2

Does the file `hapmap1.map` exist in the directory you're running the `plink` command in? It should be in your working directory, not in the directory that has the plink executable.