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A statistical package to manage and analyse data

Project description

xuerui-stat

Build Status

An open-source Python package for using statistical tools and methods.

Source code

https://github.com/Xuerui-Yang/xuerui-stat

Installation

pip install xuerui-stat

Tools and methods

DataManager

  • Description

It is a tool to manage data files. Once a data file is imported, the tool would move it to a specified data directory automatically. And when importing data, the tool can search files in the data directory.

  • Example
from xuerui_stat import DataManager
dm = DataManager(enable=True)

This command defines a class to name the tool. For the first use, users should use the command 'set_dir(yourpath)' with your prefered path to set your data directory, for example,

dm.set_dir('/home/xuerui/Documents/Data/')

Once it is done, the directory path is printed like this:

Data directory: '/home/xuerui/Documents/Data/'

The parameter 'enable' for the class can be set as True or False. When it is True, the data file imported by the command below would be moved to the data directory automatically.

df=dm.import_data('/home/xuerui/Documents/PythonProjects/FactorAnalysis/example.csv')

Otherwise users can manually move the files using the such command:

dm.addto_dir('/home/xuerui/Documents/example.csv')

The moved data files are renamed by adding the script names, in order to identify them. For example, 'example.csv' is imported in 'my_example.py' using the above command. So it would be moved to the data directory and renamed as 'MyExample_example.csv'.

Users can also check the contents under the data directory using

dm.list_dir()

DecisionTree, PlotTree, RandomForest

  • Description

These commands give users tools for data mining by using tree relevant methods.

  • Example

As above, the following commands import the data which is to be analyse.

from xuerui_stat import *
dm = DataManager(enable=False)
data=dm.import_data("/home/xuerui/Documents/PythonProjects/test.csv")

The decision tree method can be applied to the data by specifying the name of category.

dt=DecisionTree(data,'Cat')
dt.train()
t=dt.tree
print(t)

pt=PlotTree(dt)
pt.tree_structure_plot()

dt.test()
pt.confusion_matrix_plot()

The tree and confusion matrix can be plotted via the 'PlotTree' module.

Furthermore, the random forest can also be used as follows:

rf=RandomForest(data,'Cat')
rf.train(num_tree=300,max_depth=0,min_gini=0)
print(rf.oob_error)
dt.test()
print(dt.confusion_matrix)


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