# How to Multiply Matrix by Vector in R

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…

# How to Use xaxp() to Change Tick Mark Spacing in R

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…

# How to Use the dimnames() Function in R

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…

# How to Calculate Euclidean Norm of a Vector in R

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…

# How to Exit a Function in R

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…

# How to Use the all.equal() Function in R

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…

# How to Fix the Aspect Ratio in ggplot2

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…

# How to Create a Horizontal Bar Chart in R (With Example)

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…

# How to Use yearmon() in R

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…

# How to Use Wildcard Characters in R

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…