[Tutor] strange errors

[Gabriele Brambilla]

ok.
the problem is that my "errors" are not always the same and sometimes they
are only differences in the results displayed (with the same starting data
and no random variables used between).
so it's difficult for me to understand where the error is (and to give you
a piece of code that can run).
for example today I got this two warnings and the results displayed were
wrong

C:\Users\Gabriele\Anaconda1\lib\site-packages\matplotlib\colors.py:918:
RuntimeWarning: overflow encountered in true_divide
  resdat /= (vmax - vmin)
C:\Users\Gabriele\Anaconda1\lib\site-packages\matplotlib\colors.py:568:
RuntimeWarning: overflow encountered in multiply
  xa *= self.N

and when I search the maximum and the minimum in a matrix it has returned
me two nan values.

Gabriele


2014-02-03 Jerry Hill <malaclypse2 at gmail.com>:

> On Mon, Feb 3, 2014 at 2:17 PM, Gabriele Brambilla
> <gb.gabrielebrambilla at gmail.com> wrote:
> > No, i'm not  using lowlevel stuff...which part of the script do you want
> to
> > see?
>
> Since you asked, what we'd really like to see is a Short, Self
> Contained, Compilable Example (see http://sscce.org/).  That is, an
> example that is short enough to be read quickly, self contained enough
> so that we can actually save the code and run it, compilable in that
> the code will run, at least to the point where you're having a problem
> (it's fine to have code that won't run, as long as the error that pops
> up is the error you're actually looking for help with).
>
> We know that it can be a lot of work to create an example like that,
> but if you do there are two things that are likely to happen.  First,
> probably 75% of the time, you will find your problem yourself without
> ever having to post it to the list.  The very act of trimming your
> code into the piece that demonstrates your problem, will help you find
> the problem yourself.
>
> Second, you are very, very likely to get people to pay attention to
> your question and provide advice on how to fix your code when you make
> it easy for them to help.
>
> --
> Jerry
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