R

How-tos How to Extract Rows From a Data Frame in R This tutorial demonstrates how to extract rows from a data frame in R. ↗ How-tos How to Plot Normal Probability in R This tutorial demonstrates how to plot normal probability in R. ↗ How-tos How to Create a Ggplot2 Visualization With a Transparent Background In this article, we will see how to create a ggplot2 visualization with a transparent background and export it to a PNG file using the ggsave() function. We will also see how to … ↗ How-tos Label BoxPlot in R This tutorial demonstrates how to label a BoxPlot in R. ↗ How-tos How to Add a Calculated Column to a Matrix in R This article shows how to combine two matrices, or a matrix and a vector. It also shows how to add a calculated column such as a row sum or mean to an existing matrix. ↗ How-tos How to Select Columns by Index in R This tutorial demonstrates how to select columns by index in R. ↗ How-tos How to Implement the Train() Function in R This tutorial demonstrates how to implement and use the train function in R. ↗ How-tos How to Match Newline Characters in R Regex Explore how to match newline characters in R using regular expressions (regex). Learn the techniques to handle line breaks and newline variations effectively in your R programming … ↗ How-tos How to Read XLSX Files in R In this article, you will learn about two of the most complete and easy to use libraries to read xlsx files in R: readxl and openxlsx. ↗ How-tos How to Count Number of Rows in R This tutorial demonstrates how to count the number of rows of a DataFrame by group in R. ↗ How-tos How to Remove Last Character From String in R This tutorial demonstrates how to remove last few characters from a string in R using different methods. ↗ How-tos How to Change Point Size in Graphs in R This tutorial introduces how to change the size and shape of points in graphs in R. ↗ How-tos How to Replace NA With Zero in R In this article, you will learn about two methods to replace NA values in a data frame with zero values. One of them uses the Base R subset reassigns, while the other is included … ↗ How-tos How to Clear Memory in R In this tutorial, you will learn how to clear memory taken by the R system without having to restart it or to restart the computer where it runs. ↗ How-tos How to Visualize Confusion Matrix Using Caret Package in R This article introduces how to visualize confusion matrix using caret package in R ↗ How-tos How to Normalize the Values in Matrix R This article demonstrates how to add a line to normalize the values in matrix R ↗ How-tos How to Merge Two Data Frames With Different Number of Rows in R This article introduces how to merge two data frames with different number of rows in R ↗ How-tos How to Find Maximum Absolute Values by Row in Data Frame in R This article demonstrates how to find maximum absolute values by row in data frame in R ↗ How-tos How to Add Transparent Rectangle to Boxplot in R This article introduces how to add tranparent rectangle to a boxplot in R ↗ How-tos How to Add a Line to a Plot With the Lines() Function in R This article demonstrates how to add a line to a plot with the lines() function in R ↗ How-tos How to Use grepl to Find Matches for Any Character String in the R Character Vector This article demonstrates how to use grepl find matches for any character string in the R character vector. ↗ How-tos How to Split Column Into Two Columns in R This article demonstrates how to split a column into two columns using the separate function in R ↗ How-tos How to Draw Legend Items With Different Colors in R This article introduces how to draw legend items with different colors in R ↗ How-tos How to Create Histogram With ggplot in R This article introduces how to create a histogram with ggplot in R ↗