*** the loadsig2001x function was contributed by Taner Bilir.  

--- Here is a summary from Taner on what it provides: ---

I recently modified the loadsig.c file in the HSPICE toolbox for MATLAB 
so that it can accept HSPICE .option POST_VERSION=2001 outputs.
This was important for an application I was working on that had >9999 nodes. 
Unfortunately the modifications break the ability to accept the previous 
versions that loadsig.c worked with beforehand, so I’ve renamed it loadsig2001.c
