Supressing the output of p.showmode() 

```
No way to supress the  output figure of [uj,x,y]=p.showmode()
I want to take only the data. In addition to that the matrix uj is not a square 
matrix. How can I specify my own x,y grid values ?
```

Original issue reported on code.google.com by `sijothan...@gmail.com` on 9 Oct 2014 at 2:47
