Row & Column Operations Using dplyr in R | Select, mutate, rename, arrange, slice, filter, count

How to perform row and column operations using the dplyr package in R programming. More details in my comprehensive online course on Data Manipulation in R Using dplyr & the tidyverse: statisticsglobe.com/online-course-data-manipulatio…

R code of this video:

install.packages("dplyr") # Install & load dplyr
library("dplyr")

my_df ＜- data.frame(x1 = c(1, 5, 3, 8, 8, 5), # Create example data
x2 = 6:1,
x3 = letters[1:3])
my_df # Print example data

my_df %＞% # Select specific columns
select(x1, x3)

my_df %＞% # Create new column
mutate(x4 = x1 + x2)

my_df %＞% # Rename column
rename(new_x1 = x1)

my_df %＞% # Arrange rows ascendingly
arrange(x2)

my_df %＞% # Select first rows
slice(1:3)

my_df %＞% # Filter rows conditionally
filter(x1 ＞ 4)

my_df %＞% # Count rows by group
count(x3)

my_df %＞% # Summarize data by group
group_by(x3) %＞%
summarize(mean_x1 = mean(x1))

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