In this post, we will learn how to calculate compound interest in R using tidyverse framework. Getting an intuition behind how compound interest can influence investing returns is wxtremely useful in personal final. On a high level, compounding interest refers to the process of earning interest not only on the the original investment amount (i.e.… Continue reading How to Compute Compound Interest with Tidyverse
dplyr rows_update(): Modify existing rows
In this post, we will learn how to use dplyr’s rows_update() function with examples. dplyr’s rows_update() function is a useful function to modify or update specific rows in a data frame based on a matching values in key column. It takes in two dataframes x and y, updates existing rows in the target data frame… Continue reading dplyr rows_update(): Modify existing rows
dplyr n_distinct(): count unique elements or rows
In this post, we will learn how to use dplyr’s n_distinct() function to count the number of unique or distinct values in one or more vectors or columns of a dataframe. dplyr’s n_distinct() is very useful when you are working with a dataframe and need to know how many unique or distinct values or combinatons… Continue reading dplyr n_distinct(): count unique elements or rows
How to perform multiple t-tests using tidyverse
In this tutorial, we will learn how to perform multiple t-tests to determine if there is any difference in mean using tidyverse framework. With tidyverse framework, we will use tidyverse packages/functions instead of looping through using a for loop. Let us load the packages needed. We have tow examples of using tidyverse to perform multiple… Continue reading How to perform multiple t-tests using tidyverse
How to select top and bottom rows by a column simultaneously
In this tutorial, we will learn how to select top and bottom rows of a dataframe based on the values of a column with tidyverse in R. Here we will see a specific approach to get top and bottom rows when the values of the column of interest has both positive and negative values. This… Continue reading How to select top and bottom rows by a column simultaneously