Download IPython notebook for this post.

It's easy enough to make a plot using matplotlib.

```
import matplotlib.pyplot as plt
import numpy as np
time_point_array = np.arange(0, 5, .1)
y_value_array = np.exp(time_point_array)
plt.plot(time_point_array, y_value_array)
```

This plot is not great data science. In fact it's poor data …

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