datatable
datatable copied to clipboard
h2oai
A Python package for manipulating 2-dimensional tabular data structures
The aim here is to have a checklist of documentation suggestions, and also to keep track, in case others have suggestions or are already working on one, they can reference...
It seems that `.replace()` doesn't have any effect when replacing times: ```python from datatable import dt from datetime import datetime as d DT = dt.Frame([d(2000, 1, 1, 1, 1)]) DT.replace({d(2000,...
- Did you find a bug in datatable, or maybe the bug found you? fread convert 1 to True for certain csv file - How to reproduce the bug? I...
```python import datatable as dt DT = dt.Frame(arr=[[1, 2], [3, 4, 5]]) DT ``` produces
Would it possible to include another option to control the number of columns that are printed to the console, just like it is already possible for rows? `dt.options.display.max_nrows = 1000...
Array column is a column where each element is a list (array) of items. We will support `arr32` and `arr64` types, and the elements in each array will have arbitrary...
We create the source distribution (`sdist`) file for every release, but there is actually no process to verify that it is possible to build datatable from that source.
I was dealing with some log files of about 78G size. Even using fill=True, I got errors:  IOError: Too many fields on line 104485: expected 20 but more are...
``` import pandas as pd # df = pd.DataFrame({ 'name1':['A', 'B','A', 'B', 'A','B'], 'name2':['a','b','c','d','e','f'], 'goal':[92,91,90,89,88,87] }) def f(x): x['rank_num'] = x['goal'].rank(ascending=False) return x df1 = df.groupby('name1').apply(lambda x:f(x)).sort_values(['name1', 'name2']) print(df1) ` ...
Scheduled improvements to Type class. These should be implemented for version 1.1.0. - [x] #3138 - [ ] Type objects should be usable in `[...] / type` constructs; - [...