Descriptive Statistics in R

You can use the following methods to count the number of unique values in a column of a data frame in R:…

You can use the microbenchmark package in R to compare the execution time of different expressions. You can use the following syntax…

You can use the mtext() function in R to write text in the margins of a plot. This function uses the following…

The sub() function in R can be used to replace the first occurrence of certain text within a string in R. This…

You can use the cor() function in R to calculate correlation coefficients between variables. Here are the most common ways to use…

The identical() function in R can be used to test whether or not two objects in R are exactly equal. This function…

You can use the following methods to calculate a cumulative sum by group in R: Method 1: Use Base R df$cum_sum Method…

You can use the melt() function from the reshape2 package in R to convert a data frame from a wide format to…

You can use the linearHypothesis() function from the car package in R to test linear hypotheses in a specific regression model. This…

You can use the coeftest() function from the lmtest package in R to perform a t-test for each estimated coefficient in a…