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Performing SQL selects on R data frames

March 13, 2016
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Performing SQL selects on R data frames

For anyone who has SQL background and who wants to learn R, I guess the sqldf package is very useful because it enables us to use SQL commands in R. One who has basic SQL skills can manipulate data frames in R using their SQL skills. You can read more about sqldf package from cran. Related PostDeveloping an R...

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Sentiment Analysis on Donald Trump using R and Tableau

January 2, 2016
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Sentiment Analysis on Donald Trump using R and Tableau

Recently, the presidential candidate Donal Trump has become controversial. Particularly, associated with his provocative call to temporarily bar Muslims from entering the US, he has faced strong criticism. Some of the many uses of social media analytics is sentiment analysis where we evaluate whether posts on a specific issue are positive or negative. We can

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Google scholar scraping with rvest package

January 1, 2016
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Google scholar scraping with rvest package

In this post, I will show how to scrape google scholar. Particularly, we will use the 'rvest' R package to scrape the google scholar account of my PhD advisor. We will see his coauthors, how many times they have been cited and their affiliations. “rvest, inspired by libraries like beautiful soup, makes it easy to

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