Notebooks: sampling.ipynb

[mknorps]

Small adjustments to Sampling notebook:

• add a histogram of samples to give more examples of split between the sampling part vs the distribution construction part and where it is applied.
• described usage of histogram on simple continuous distribution (map of constant weights)

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[mknorps]

@reubenharry Could you explain the weighted vs unweighted sampling a bit more? I do not understand why we need weighted in caseof a normal distribution:

[reubenharry]

@reubenharry Could you explain the weighted vs unweighted sampling a bit more? I do not understand why we need weighted in caseof a normal distribution:

I think you're right, and unweighted would be fine. I believe they're equivalent here (since there were no factor statements), but unweighted is clearer, I agree.

[mknorps]

@reubenharry Could you explain the weighted vs unweighted sampling a bit more? I do not understand why we need weighted in caseof a normal distribution:

I think you're right, and unweighted would be fine. I believe they're equivalent here (since there were no factor statements), but unweighted is clearer, I agree.

The problem I have with this statement is that it needs weighted or a unweighted . weighted functions at all. It is not clear for me:

• why we have to treat sampling from continuous distribution with additional weights by default and not having weights as an option?
• if the above is necessary due to implementation logic, could you explain why it is so?

[reubenharry]

@reubenharry Could you explain the weighted vs unweighted sampling a bit more? I do not understand why we need weighted in caseof a normal distribution:

I think you're right, and unweighted would be fine. I believe they're equivalent here (since there were no factor statements), but unweighted is clearer, I agree.

The problem I have with this statement is that it needs weighted or a unweighted . weighted functions at all. It is not clear for me:

• why we have to treat sampling from continuous distribution with additional weights by default and not having weights as an option?
• if the above is necessary due to implementation logic, could you explain why it is so?

I don't think we need weighted, or even unweighted. The only thing is that we need some weights to give to the histogram, so we could just supply those (something like fmap (,1) (replicateM n model2) (That ends up being what weighted does anyway, which is why the code is the way it is, but I agree it's confusing).

[reubenharry]

These changes look good to me!