Thank you for your contribution.

- Please put comments in your code.For example:

```
//Short descript of scatter_plot_3d function
def scatter_plot_3d(d, x, y, z):
    fig = plt.figure(figsize=(10, 10))
    ax = Axes3D(fig)
    ax.scatter(d[x], d[y], d[z], c=d['class'], cmap=plt.cm.Accent, edgecolor='k', s=80)
   // what will do this function ax.set_xlabel(),ax.set_ylabel(), ax.set_zlabel() 
    ax.set_xlabel(x)
    ax.set_ylabel(y)
    ax.set_zlabel(z)
   // what will do this function ax.legend
    ax.legend([label(color(150, 210, 150)), label(color(247, 192, 135)),
               label(color(235, 8, 144)), label(color(102, 102, 102))],
              ['content-creator', 'scammer', 'comment-spammer', 'bid-bot'], numpoints = 1)
```

<br/>

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To view those questions and the relevant answers related to your post, [click here](https://review.utopian.io/result/8/11113313).

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