R

How-tos How to Sum Selected Columns of an R Data Frame This article shows how to calculate the sum of selected columns of an R data frame and store the values in a new column. ↗ How-tos How to Perform Time Series Analysis and Forecasts in R This article introduces the functions in base R that facilitate time series analysis and forecasts. The reader must be familiar with the statistical and mathematical aspects of … ↗ How-tos How to Create Empty Data Frame in R This tutorial demonstrates how to create an empty data frame in R. ↗ How-tos How to Concatenate Two Columns in R This tutorial demonstrates how to concatenate two columns in R. ↗ How-tos Plot Background Color in R This tutorial demonstrates how to change the background color of plot in R. ↗ How-tos Random Forest in R This tutorial demonstrates the random forest approach in 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 Create Empty Matrix in R This tutorial demonstrates the way to create an empty matrix 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 Check Variable Data Types in R This tutorial demonstrates the methods on how to check variable type in R. ↗ How-tos How to Restart R in RStudio This article explains the need to restart R and then mentions different methods to restart R using RStudio. ↗ 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 The replicate() Function in R This tutorial introduces the uses of the replicate() function in R. ↗ How-tos How to Count Number of Observations in R This tutorial demonstrates how to count the total number of observations in a dataset in R. ↗ 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 Remove Rows With NA in One Column in R This tutorial demonstrates how to remove rows with NA in one column from a dataframe in R. ↗ 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 Find Row Number in R This tutorial demonstrates how to find a row number for a value 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. ↗