Data Manipulation and Transformation Tutorials

Filter Rows Based on Conditions in a Data Frame in R

Apr 26, 2024
R-PROGRAMMING

There are multiple ways to filter rows based on condition in R data frame. The following methods show how you...

2 min Read

How to Add a Count Column to a Data Frame in R

Apr 26, 2024
R-PROGRAMMING

To add count column to data frame in R, you can use add_count() function from dplyr package. The following method...

1 min Read

How to Calculate Percentage by Group in R

Apr 26, 2024
R-PROGRAMMING

To calculate percentage by group in R, you can use group_by() and mutate() function from dplyr package. The following method...

1 min Read

How to Calculate Quantiles by Group in R

Apr 26, 2024
R-PROGRAMMING

To calculate quantiles by group in R, you can use quantile() function from dplyr package. The following method shows how...

1 min Read

How to Calculate Rolling Correlation in R

Apr 26, 2024
R-PROGRAMMING

To calculate rolling correlation in R, you can use rollapply() function from zoo package. The Rolling correlation is basically Rolling...

1 min Read

How to Check which Package Version is Loaded in R

Apr 26, 2024
R-PROGRAMMING

To ckeck which package version is loaded in R, you can use packageVersion() function. The following method shows how you...

1 min Read

How to Count TRUE Values in Logical Vector

Apr 26, 2024
R-PROGRAMMING

To count TRUE values in logical vector in R, you can use sum() function. The following method shows how you...

1 min Read

How to Count Unique Values by Group in R

Apr 26, 2024
R-PROGRAMMING

To count unique values by group in R, you can use two different function one way is group_by() and summarise()...

2 min Read

How to Count Unique Values in Column in R

Apr 26, 2024
R-PROGRAMMING

To count unique values from column of data frame in R, there are two different methods one is length() function...

2 min Read

How to Count Values in Column with Condition

Apr 26, 2024
R-PROGRAMMING

To count the value in column with condition in R, you can use two different ways one is using nrow()...

2 min Read

How to Create a Frequency Table of Multiple Variables in R

Apr 26, 2024
R-PROGRAMMING

To create a frequency table of multiple variables in R, you can use table() function and summarise() function from dplyr...

2 min Read

How to Create a Multi-Line Comment in R

Apr 26, 2024
R-PROGRAMMING

To create a multiple line comment in R, you can use two different ways. The following methods show how you...

1 min Read