Datatile
A library for managing, summarizing, and visualizing data.
N.B.1:
pandas-summarywas renamed to datatile, a more ambitious project with sevral planned features and enhancements to add support for visualizations, quality checks, linking summaries to versions, and integrations with third party libraries.
Installation
The module can be easily installed with pip:
> pip install datatile
This module depends on numpy and pandas. Optionally you can get also some nice visualisations if you have matplotlib installed.
Tests
To run the tests, execute the command python setup.py test
Usage
DataFrameSummary
An extension to pandas dataframes describe function.
The module contains DataFrameSummary object that extend describe() with:
- properties
- dfs.columns_stats: counts, uniques, missing, missing_perc, and type per column
- dsf.columns_types: a count of the types of columns
- dfs[column]: more in depth summary of the column
- function
- summary(): extends the
describe()function with the values withcolumns_stats
- summary(): extends the
The DataFrameSummary expect a pandas DataFrame to summarise.
from datatile.summary.df import DataFrameSummary
dfs = DataFrameSummary(df)getting the columns types
dfs.columns_types
numeric 9
bool 3
categorical 2
unique 1
date 1
constant 1
dtype: int64getting the columns stats
dfs.columns_stats
A B C D E
counts 5802 5794 5781 5781 4617
uniques 5802 3 5771 128 121
missing 0 8 21 21 1185
missing_perc 0% 0.14% 0.36% 0.36% 20.42%
types unique categorical numeric numeric numericgetting a single column summary, e.g. numerical column
# we can also access the column using numbers A[1]
dfs['A']
std 0.2827146
max 1.072792
min 0
variance 0.07992753
mean 0.5548516
5% 0.1603367
25% 0.3199776
50% 0.4968588
75% 0.8274732
95% 1.011255
iqr 0.5074956
kurtosis -1.208469
skewness 0.2679559
sum 3207.597
mad 0.2459508
cv 0.5095319
zeros_num 11
zeros_perc 0,1%
deviating_of_mean 21
deviating_of_mean_perc 0.36%
deviating_of_median 21
deviating_of_median_perc 0.36%
top_correlations {u'D': 0.702240243124, u'E': -0.663}
counts 5781
uniques 5771
missing 21
missing_perc 0.36%
types numeric
Name: A, dtype: objectFuture development
Summaries
- Add summary analysis between columns, i.e.
dfs[[1, 2]]
Visualizations
- Add summary visualization with matplotlib.
- Add summary visualization with plotly.
- Add summary visualization with altair.
- Add predefined profiling.
Catalog and Versions
- Add possibility to persist summary and link to a specific version.
- Integrate with quality libraries.