[Numpy-discussion] Simple question about scatter plot graph

Jonathan Hilmer jkhilmer@gmail....
Wed Oct 31 20:57:07 CDT 2012


Obviously there are some real patterns there, but when interpreting
low-resolution plots visually, be careful of Moire effects: view the
following image at multiple zoom levels as an example.
http://upload.wikimedia.org/wikipedia/commons/4/42/Divers_-_Illustrated_London_News_Feb_6_1873-2.PNG

My own data is extremely deceptive when viewed on a computer monitor
at typical resolutions, and physical printouts or zoomed-in variants
show dramatically different patterns.

Jonathan


On Wed, Oct 31, 2012 at 7:43 PM, klo uo <klonuo@gmail.com> wrote:
> OK, thanks guys for your suggestions, which I'll try tomorrow
>
> I did correlation first, but no significant values
> Then I did linear regression, one sample to rest and while there I spotted
> this grid pattern
> I was using pandas lag_plot, but it's same plot when I do MPL scatter one
> sample on others
>
> _______________________________________________
> NumPy-Discussion mailing list
> NumPy-Discussion@scipy.org
> http://mail.scipy.org/mailman/listinfo/numpy-discussion
>


More information about the NumPy-Discussion mailing list