Commit d04286a3 authored by Damien Irving's avatar Damien Irving
Browse files

Added matplotlib.pyplot and matplotlib inline

parent 532249fb
......@@ -505,19 +505,31 @@
Blue regions in this heat map are low values, while red shows high values.
As we can see,
inflammation rises and falls over a 40-day period.
> ## Some IPython magic {.callout}
> If you're using an IPython / Jupyter notebook,
> you'll need to execute the following command
> in order for your matplotlib images to appear
> when `show()` is called:
> `% matplotlib inline`.
> The `%` indicates an IPython magic function -
> a function that is only valid within the notebook environment.
> Note that you only have to execute this function once per notebook.
Let's take a look at the average inflammation over time:
~~~ {.python}
ave_inflammation = data.mean(axis=0)
ave_plot = pyplot.plot(ave_inflammation)
ave_plot = matplotlib.pyplot.plot(ave_inflammation)
![Average Inflammation Over Time](fig/01-numpy_73_0.png)
we have put the average per day across all patients in the variable `ave_inflammation`,
then asked `pyplot` to create and display a line graph of those values.
then asked `matplotlib.pyplot` to create and display a line graph of those values.
The result is roughly a linear rise and fall,
which is suspicious:
based on other studies,
......@@ -525,15 +537,15 @@ we expect a sharper rise and slower fall.
Let's have a look at two other statistics:
~~~ {.python}
max_plot = pyplot.plot(data.max(axis=0))
max_plot = matplotlib.pyplot.plot(data.max(axis=0))
![Maximum Value Along The First Axis](fig/01-numpy_75_1.png)
~~~ {.python}
min_plot = pyplot.plot(data.min(axis=0))
min_plot = matplotlib.pyplot.plot(data.min(axis=0))
![Minimum Value Along The First Axis](fig/01-numpy_75_3.png)
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