Jovan Veljanoski

Closes https://github.com/vaexio/vaex/issues/1587 - [x] implemented unit test - [ ] test passes

Closes https://github.com/vaexio/vaex/issues/2153 - [x] unit test - [ ] tests pass

Now we can query column names by data type: ```python import vaex df = vaex.datasets.titanic() df.get_column_names(dtypes=[float]) # returns ['age', 'fare', 'body'] ``` Several attempts at this have been done at...

Fix: count with binning using multiple selections

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Closes: https://github.com/vaexio/vaex/issues/2151 - [x] Implement a test - [ ] test passes

Closes https://github.com/vaexio/vaex/issues/2146 - [x] Make a unit-test - [ ] unit-test passes

This fixes https://github.com/vaexio/vaex/issues/2136 Base on the discussion: https://github.com/vaexio/vaex/discussions/2131 - [x] make unit test - [ ] make unit test pass

### Discussed in https://github.com/vaexio/vaex/discussions/2131 Originally posted by **tommyhj217** July 26, 2022 Hi DataFrame delay_time has values from -276 to 111 and dtype=int64.  The number of values is 206. ...

Addresses #816 Enable groupby on column that is of fixed length string type. - [x] Implement test - [ ] Make it pass

Feature: Tensorflow Integration

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This PR realises #616 The idea is enable vaex DataFrames to be used as input data sources for tensorflow (tf) data sources. This is made possible in large part thanks...

This PR starts the work on enabling the use of custom, user defined functions (outside the scope of vaex) for doing aggregations. - [x] Test for single column aggregation -...