Gökhan SEVER writes:
> Still a question stays in my mind: How do you decribe box-whisker plots in
> your writing while using matplotlib's boxplot command? It uses 25, 50, 75th
> percentiles of the data for sure, but apart from what I expected whiskers
> are not at 5th, and 95th percentiles of the
Hello,
I have finally solved this riddle while reading the source code of boxplot
in axes.py file. And yes whisker plotting is done different than I expect.
When I assigned "whis" keyword to 3.0 the lower whisker is plotted on the
right spot. And Josh, yes you were right, it did plot the lower whi
One more point to add.
I issued one more boxplot with prctile(data) (a mlab command which boxplot
calls internally to calculate percentiles) as an argument to it.
Guess what?
I get almost the same as in initially I have :) without a lower whisker.
I don't know I am confusing myself or is it the
Ok,
With this figure, it is clearer to see what's wrong with two of my boxplots.
I pull the original data and feed boxplot with it.
The 1st boxplot is using only quartiles and the next is providing the actual
data array.
http://img140.imageshack.us/img140/4705/boxplots.png
To me the second boxp
Thank you for the response once again.
That's why I am suspecting actually the raw data. At the problem points
there might be not included values or missing values where not exist on the
normal plots.
I will find the original data and feed boxplot with it to see how it effects
the final result.
Thanks for sending the data and code. After playing around some I still don't
have a confident guess as to the problem (or solution), but here is what I
would look at more...
I issued plot(d[i][8:]) for i 0,1,...11 and looked at the shape of the
lines. For the two problem boxes, the plots of
I zoomed into the plot to see if the whiskers are usually being plotted.
There seems like a vertical line plotted over lower part of the boxplot,
however not in the right place.
I am attaching the simple text file that has the quartile values in it. I
run ipython --pylab and do the following for a
Gökhan SEVER-2 wrote:
>
> For some reason on boxplot 3 and 5 on the figure I get fliers instead of
> whiskers on the lower parts.
>
When I look closely at your graphic it looks to me like the lower whiskers
are in fact being plotted, but just (essentially) overlayed on lower
quartile part of
I can't tell easily about the distribution of data points looking at
histograms, since I am calling boxplot as in following notation:
In [32]: d[2][8:]
Out[32]: array([98.2507, 99.6293, 100.0359, 100.1859, 100.4691])
Here the elements of my array are 5th, 25, 50, 75, 95th percentile of the
or
Why don't you perform a histogram on the data that produced that
boxplot, .. seeing the shape of that histogram may answer your own
question. Is it skewed or normal distribution?
Gökhan SEVER wrote:
> Hello,
>
> I construct my boxplots (shown in this figure:
> http://img204.imageshack.us/img20
Hello,
I construct my boxplots (shown in this figure:
http://img204.imageshack.us/img204/7518/boxplot2.png) using 5th, 25th, 50th,
75th, 95th percent of my data explicitly. For some reason on boxplot 3 and 5
on the figure I get fliers instead of whiskers on the lower parts.
Do you have any idea w
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