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Questions - hierarchical

How to create a multiIndex (hierarchical index) dataframe object from another df's column's unique values?

I'm trying to create a pandas multiIndexed dataframe that is a summary of the unique values in each column. Is there an easier way to have this information summarized besides creating this dataframe? ...
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hziggity

pandas

dataframe

unique

multi-index

hierarchical

Votes: 0

Answers: 2

Latest Answer

This is a fairly straightforward application of .melt: data.melt().reset_index().groupby(['variable', 'value']).count()/len(data) output index variable value A case 1.0 B ...
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piterbarg

Python - creating a reference tree of objects by their attributes

I have a list of objects. These objects have nested attributes, which were generated in accordance with a method by hpaulj's response in this post: Object-like attribute access for nested dictionary. ...
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rorance_

python

object

filter

hierarchical

Votes: 0

Answers: 1

Latest Answer

If you have to deal with upwards of one million objects, generating an additional hierarchy is probably not the best solution. It would require many additional objects and waste a lot of time for just...
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Gerald Mayr

Calculate sum of current row and child rows in hierarchical WITH query in Oracle

I have a Oracle hiërarchical query using a WITH clause (common table expression). My goal is to calculate the sum of the salaries of the current row and the child rows. I've come up with the following...
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Marko

sql

oracle

common-table-expression

hierarchical

Votes: 0

Answers: 2

Latest Answer

An efficient, pure SQL approach uses a connect by query to assign levels in the hierarchy, followed by a carefully constructed match_recognize operation. Once we have the nodes in the proper hierarchi...
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user5683823

Theano.scan in hierarchical PyMC3 models

I want to apply theano.scan over multiple parameters in a hierarchical model. The code works great for a single model, however, I'm not sure how to convert the model to a hierarchical model (requiring...
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Zach Wolpe

python

theano

bayesian

pymc3

hierarchical

Votes: 0

Answers: 0

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