On Tue, Mar 29, 2011 at 6:50 PM, Piotr Przybylski <piotr.prz(a)gmail.com>wrote;wrote:
2011/3/29 Ammar Yasir
<ammaryasir.88(a)gmail.com>om>:
On Tue, Mar 29, 2011 at 5:01 PM, Marc Delisle <marc(a)infomarc.info>
wrote:
>
> Ammar Yasir a écrit :
> >
> > Thanks
> >
> > I had a doubt (it might be silly but I thought I should ask). One
> > important feature of such a data visualization system is that it
should
> > not create confusion or represent
something that the data is not.
> > Consider the movie database example, when a user sees a plot of
ratings
> > vs year / genre vs lanuage, a lot of
data points will overlap. So a
> > lot of data will be hidden from the user at the first sight. What will
a
> > user make out of it? I know we handle
such conditions by providing all
> > the data instances when he clicks on the point but a user might not go
> > that far. If he is not able to understand the initial plot he might
not
continue further ( like not zoom in/click data point).
I am just a
little concerned about the usability part and not the functionality.
I don't think that the plot contains all that. In the example I have
seen, the X axis contained "year of release" and the Y axis was for
"popularity level from 1 to 9".
No I am saying that a lot of movies will have same year of release and
same
popularity. Those movie points will overlap on
the 2D space, what then?
One solution is to allow for adding random jitter to point coordinates
in order to scatter them around their real position, like it's done
for scatter plots in RapidMiner ([1], last screenshot).
[1]
http://rapid-i.com/content/view/9/199/
Yes, probably or like collisions resolution in hashing. I'll think on it
more.
I've submitted my proposal, hoping to get some feedback. Is it okay if we
concentrate more on a stable,usable product than implement many advanced
functionality? Because here it seems to be the case where we can add a lot
of statistics into the system.
--
Piotr Przybylski
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