Update ModelBuilder to show regression lines

[BerylKanali]

@cluhmann Here is the PR from yesterday's session. I worked on it with @Monsurat-Onabajo

Towards https://github.com/pymc-devs/pymc-examples/issues/530 cc: @fonnesbeck @reshamas

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[twiecki]

We also recently changed the API of ModelBuilder (slightly), are you interested in bringing this example up-to-date? Here is the PR: https://github.com/pymc-devs/pymc-experimental/pull/131

[Monsurat-Onabajo]

When I tried to plot the graph of the truth values and the predicted values in one figure, I got this graph and upon investing further, I noticed the truth value data is more of a wavelength dataset than a regression dataset. That was probably the reason a line can't be used as a connector because there is no pattern in the data for the graph to be formed on.

[Monsurat-Onabajo]

This was when I tried to plot the true value using scattered plot to check the trend

[twiecki]

@Monsurat-Onabajo The upload didn't work, you might have to wait a bit longer.

[Monsurat-Onabajo]

@Monsurat-Onabajo The upload didn't work, you might have to wait a bit longer.

I have uploaded it again

[OriolAbril]

@Monsurat-Onabajo @BerylKanali if you don't mind waiting we can take a look this Thursday, maybe it is easier to solve in the sync session

[BerylKanali]

@Monsurat-Onabajo @BerylKanali if you don't mind waiting we can take a look this Thursday, maybe it is easier to solve in the sync session

@OriolAbril Sure. We can look at it then.

[BerylKanali]

@fonnesbeck I made additional changes with the guidance of @OriolAbril cc: @Monsurat-Onabajo

[Monsurat-Onabajo]

@fonnesbeck I made additional changes with the guidance of @OriolAbril cc: @Monsurat-Onabajo

Goodjob beryl