Some figure without code

[Yensan]

I read this chapter and notice this figure.
http://www.scipy-lectures.org/packages/statistics/index.html#student-s-t-test-the-simplest-statistical-test

3.1.2.1. Student’s t-test: the simplest statistical test
1-sample t-test: testing the value of a population mean

As usual, I use pandas DataFrame to plot stat figure, such as bar/line/pie/scatter etc.
Plotting a distribution figure like that, it is not frequent to see, and hard to find out how to make out through google. But, there is no sample code at all! Can you add one? For an greenhand, it is really hard to do.

[gertingold]

It seems to me that the main difficulty in reproducing this plot is that it is not specified what really is depicted.

As a side remark, it is not optimal that three colors are used in the plot even though the meaning of only two colors is explained. The reader has to guess that the third color is obtained by superposing the other two colors.

[Yensan]

@gertingold ,You're absolutely right.
I don't even know what the figure what really is depicted. It is not matplotlib's hist figure

color is ok. But alpha is to strong, so you look it confusing

[mdhaber]

It is common throughout the notes for the figures to have no caption or code. I'd suggest:

• Adding captions to all figures
• Adding the possibility to show the code used to generate the figure (maybe collapsible)