Browsing Tag

R

Collecting Tweets Using TwitterR

What is the Twitter Search API? The Twitter search API, one of three such APIs (search, streaming, “firehose“), allows access to a subset of popular or recent tweets (in the last 4-6 days). That is, it allows querying past tweets (though a…

Linear Regression Analysis using R

One of the most frequent used techniques in statistics is linear regression where we investigate the potential relationship between a variable of interest (often called the response variable but there are many other names in use) and a set…

Mapply function in R

mapply is a multivariate version of sapply. mapply applies FUN to the first elements of each ... argument, the second elements, the third elements, and so on. Arguments are recycled if necessary. Vectorize returns a new function that acts…