Author Archives: YANAMALA VIJAY RAJ

About YANAMALA VIJAY RAJ

Mtech in Clinical Eng Jointly offered by Indian institute of technology Madras& Christian medical college Vellore& Sree chitra tirunal institute for medical sciences and technology Trivandrum.

Feature reduction with Random Forest

Lets say, we have 112 Features for classifying two classes, All the features might not be needed for correlated with class. The procedure which is employed to get rid of less discriminative features is called Feature Reduction. PCA, ICA and … Continue reading

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Awesome pandas library

Pandas is important library in python language for data analytics. In this post, we will use pandas for our machine learning task, and appreciate the ease with which things get done. Let say we have data in text data, with … Continue reading

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Data Scrap from Google Scholar

Note: This post is only for educational purpose. In the previous post, we have learned how to scrap data from wikipedia, Data (table ) can be scrapped likewise from Google scholar too, but there is one problem with the strategy … Continue reading

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Scrap table from wiki

Scarpping table from wiki and saving it to .csv with python is damn easy, Its just matter of ten line code, Lets scrap table from two pages, page1: https://en.wikipedia.org/wiki/Oncogene page2: https://en.wikipedia.org/wiki/List_of_gene_prediction_software Fig1: Table from page1 Fig2: Code for scrapping table from page1 … Continue reading

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Segmented brodmann area(22,44,45) ROI

In fMRI (functional magnetic resonance imaging ) studies, BA ROIs are important to cross-check activation area in brain. BA rois can be downloaded from marsbar website ( http://marsbar.sourceforge.net/) => But there is one problem with the ROI’s that’s offered. For example … Continue reading

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Custom made dictionary with Python

In this post, lets learn about custom made dictionary with python Requirements: BeautifulSoup, urllib2 library Vocabulary.com is excellent site, for improving vocabulary. But instead of browsing, if there is a way to grab  required data, for a set of words, … Continue reading

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Scatter plot in Python

Scatter plot is helpful is choosing important feature for predicting class in machine learning. Scatter plot can be plotted easily with few line code with sea-born library Data set 2. Code 3. Scatter plot  

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