mltronsAutoDataPrep 0.0.12

First Automated Data Preparation library powered by Deep Learning to automatically clean and prepare TBs of data on clusters at scale.

mltrons-auto-data-prep :Tool kit that automate Data Preparation

What is it?

Mltrons-auto-data-prep is a Python package providing flexible and automated way of data preparation in any size of the raw data.It uses Machine Learning and Deep Leaning techniques with the pyspark back-end architecture to clean and prepare TBs of data on clusters at scale.

Main Features

Here are just a few of the things that Mltrons-auto-data-prep does well:

• Data Can be read from multiple Sources such as S3 bucket or Local PC

• Handle Any size of data even in Tbs using Py-spark

• Filter out Features with Null values more than the threshold

• Filter out Features with same value for all rows

• Automatically detects the data type of features

• Automatically detects datetime features and split in multiple usefull features

• Automatically detects features containing URLs and remove duplications

• Automatically detects Skewed features and minimize skewness

Where to get it

The source code is currently hosted on GitHub at: https://github.com/ms8909/mltrons-auto-data-prep

The pypi project is at : https://pypi.org/project/mltronsAutoDataPrep/

How to install

pip install mltronsAutoDataPrep

Dependencies

• PySpark
• NumPy
• pandas
• python-dateutil
• pytz
• see full list of dependicies here

How to use

1. Reading data functions

• address to give the path of the file

• local to give the file exist on local pc or s3 bucket

• file_format to give the format of the file (csv,excel,parquet)

• s3 s3 bucket credentials if data on s3 bucket

from mltronsAutoDataPrep.lib.v2.Operations.readfile import ReadFile as rf

res = rf.read(address="test.csv", local="yes", file_format="csv", s3={})

2. Drop Features containing Null of certain threshold

• provide dataframe with threshold of null values

• return the list of columns containing null values more then the threshold

from mltronsAutoDataPrep.lib.v2.Middlewares.drop_col_with_null_val import DropNullValueCol

res = rf.read("test.csv", file_format='csv')

drop_col = DropNullValueCol()
columns_to_drop = drop_col.delete_var_with_null_more_than(res, threshold=30)
df = res.drop(*columns_to_drop)

3. Drop Features containing same values

• provide dataframe

• return the list of columns containing same values

from mltronsAutoDataPrep.lib.v2.Middlewares.drop_col_with_same_val import DropSameValueColumn


drop_same_val_col = DropSameValueColumn()
columns_to_drop = drop_same_val_col.delete_same_val_com(res)
df = res.drop(*columns_to_drop)

4. Cleaned Url Features

• Automatically detects features containing Urls

• Pipeline structure to clean the urls using NLP techniques

from mltronsAutoDataPrep.lib.v2.Pipelines.etl_pipeline import EtlPipeline

etl_pipeline = EtlPipeline()
etl_pipeline.custom_url_transformer(res)
res = etl_pipeline.transform(res)

5. Split Date Time features

• Automatically detects features containing date/time

• Split date time into usefull multiple feautures (day,month,year etc)

from mltronsAutoDataPrep.lib.v2.Pipelines.etl_pipeline import EtlPipeline


etl_pipeline = EtlPipeline()
etl_pipeline.custom_date_transformer(res)
res = etl_pipeline.transform(res)

6. Filling Missing Values

• Using Deep Learning techniques Missing values are filled

from mltronsAutoDataPrep.lib.v2.Pipelines.etl_pipeline import EtlPipeline


etl_pipeline = EtlPipeline()
etl_pipeline.custom_filling_missing_val(res)
res = etl_pipeline.transform(res)

7. Removing Skewness from features

• Automatically detects which column contains skewness

• Minimize skewness using statistical methods

from mltronsAutoDataPrep.lib.v2.Pipelines.etl_pipeline import EtlPipeline


etl_pipeline = EtlPipeline()
etl_pipeline.custom_skewness_transformer(res)
res = etl_pipeline.transform(res)