[Numpy-discussion] get information/position of value from matrix

[Michael Gilbert]

On Wed, 7 Apr 2010 16:40:24 +0200, ioannis syntychakis wrote:
> Hallo Everybody,
> 
> I am new in this mail list and python. But I am working at something and I
> need your help.
> 
> I have a very big matrix. What I want is to search in that matrix for values
> above the (for example:) 150. If there are values above the 150, I also want
> to get their position and value.

a[a>150]

> Is this possible?
> Thanks in advance!!
> 
> ps. could you also tell me how i can show the whole matrix? because now i
> see:

i use a small routine for this.  i just walk through each element, and
print it with sys.stdout.write, which doesn't automatically add
end-of-lines.

mike