What are the steps to execute addition and total values count on a dataframe in R?

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Here are the steps to execute addition and total values count on a dataframe in R:

1. Load the necessary libraries for data manipulation, such as dplyr or tidyverse.

library(dplyr)

1. Create a sample dataset or import a required dataset from an external source, such as CSV.

df <- data.frame(x = c(1,2,3,4,5), y = c(6,7,8,9,10))

1. Use the mutate function to add a new column to the data frame, which is the sum of the existing columns.

df <- df %>% mutate(z = x + y)

1. Use the summarize function to calculate the total value count of a specific column.

df_total <- df %>% summarize(total_x = sum(x))

1. Print the final result.

print(df)
print(df_total)