PyPI 官网下载 | augmentdata-0.0.10.tar.gz

<!-- [](https://badge.fury.io/py/sentimentanalyser) [](https://www.python.org/downloads/release/python-360/) [](https://opensource.org/licenses/MIT) [](http://hits.dwyl.io/ashhadulislam/sentiment-analyser-lib) [](https://img.shields.io/pypi/dm/sentimentanalyser.svg) [](https://www.codefactor.io/repository/github/ashhadulislam/sentiment-analyser-lib/overview/master) --> # Augment data library ### About A generic package to help data scientists balance their dataset by increasing the datapoints for an imbalanced class. ### Installation Use below command to install `pip install sentimentanalyser` ### Usage Convert your dataset to numpy array. All values of the data must be numeric. The last column must be the class label Function call: 5 inputs ``` augment(data=df.values,k=k,class_ind=1,N=45000,randmx=randmx) ``` - data is the array like input of data, last column of data is class label - k is number of neighbors, it should be bigger or equal to 1 - class_ind is the value of data that needs to be augmented. For example, if the class labels are 0 or 1 and the datapoints for 0 need to be upsampled, class_ind=0 - N is the number of Datapoints that needs to be added - randmx will be a value between 0 and 1, inclusive. smaller the randmx, closer is the data to each original data. randmx, uniform[0,randmx], ; randmx<=1 The outputs are: - Data_a: complete data with augmented datapoints - Ext_d: Only the augmented data points - Ext_not: The datapoints that was created but ignored Example implementation ``` from augmentdata import data_augment l=[ [1,3,4,1], [2,3,4,1], [1,2,1,0], [3,2,1,0], [3,1,1,0], [2,1,1,0], [3,2,2,1], [3,4,2,1], [4,3,1,1] ] l=np.array(l) k=2 randmx=1 daug = data_augment.DataAugment() [Data_a,Ext_d,Ext_not]=daug.augment(data=l,k=k,class_ind=0,N=5,randmx=randmx) print(Data_a) ``` Output ``` array([[1. , 2. , 1. , 0. ], [3. , 2. , 1. , 0. ], [3. , 1. , 1. , 0. ], [2. , 1. , 1. , 0. ], [1.29027148, 1.98510073, 1. , 0. ], [1.65549291, 1.4418645 , 1. , 0. ], [2.02559196, 1.01965248, 1. , 0. ], [2.79469135, 1.69371064, 1. , 0. ], [2.907707 , 1.38716444, 1. , 0. ], [1. , 3. , 4. , 1. ], [2. , 3. , 4. , 1. ], [3. , 2. , 2. , 1. ], [3. , 4. , 2. , 1. ], [4. , 3. , 1. , 1. ]]) ``` ### Authors - Dr Samir Brahim Belhaouari: samir.brahim@gmail.com, sbelhaouari@hbku.edu.qa - Ashhadul Islam: ashhadulislam@gmail.com, aislam@mail.hbku.edu.qa