A matrix is an object that has a specific number of rows and columns. A vector, on the other hand, only has a specific number…

# Category: Programming

Often you may want to change the spacing of tick marks on the axis of a plot in R. The easiest way to do so…

Often you may want to set or retrieve the dimension names of a matrix or data frame in R. The easiest way to do so…

In statistics, one of the most common ways to calculate the length of a vector is to calculate the Euclidean norm. This is defined as…

A function in R can be used to perform some specific task. When creating your own custom function in R, you may want to exit…

Often you may want to check if all corresponding elements in two vectors are equal or roughly equal in R. The easiest way to do…

Often you may want to adjust the aspect ratio of a plot created in ggplot2 so that the length and the width of the plot…

A horizontal bar chart is a type of chart that displays numerical values along the x-axis of the chart, categorical values along the y-axis of the…

Often you may want to extract the month and year from a date in R. One of the best ways to do so is by…

Often you may want to use wildcard characters in R to select specific rows that contain certain substrings. The easiest way to work with wildcard…