Standard deviation is “a statistic that measures the dispersion of a dataset relative to its mean and is calculated as the square root of the variance”. To calculate the standard deviation in R, you can use the “sd()” function. The sd() is a built-in function that “accepts the input object and calculates the standard deviation … Read more
To convert a data frame to a data table in R, you can use the “setDT()” or “as.data.table()” function. Method 1: Using the setDT() function The best and easy way to convert a data frame to a data table is to use the “setDT()” function. The setDT() function accepts a data frame as an argument and returns … Read more
The stringsAsFactors in R is an argument of the “data.frame()” function. While creating a data frame, there is an argument of stringsAsFactors. The “stringsAsFactors” is a logical argument suggesting whether the strings in a data frame should be treated as factor variables or just plain strings. netflix_data <- data.frame( show_id = c(1:4), show_name = c(“Cabinet of … Read more
In R, you can add comments to your code using the “hash symbol (#)”. Any text following the hash symbol on the same line will be treated as a comment and will not be executed. Comments help explain your code, making it more readable and understandable. Single-Line Comments in R R only supports single-line comments … Read more
To find the second and third lowest values in R Data Frame Column, you can use the “sort()” method. Example df <- data.frame( name = c(“A”, “B”, “C”, “D”, “E”, “F”, “G”), value = c(51, 12, 41, 21, 20, 81, 11) ) # Second and third lowest values sorted_values_asc <- sort(df$value, decreasing = FALSE) second_lowest_value … Read more
To find the second and third highest values in R Data Frame Column, you can use the “sort()” method. Example # Sample data frame df <- data.frame(name = c(“A”, “B”, “C”, “D”, “E”, “F”, “G”), value = c(51, 12, 41, 21, 20, 81, 11)) # Second and third highest values sorted_values_desc <- sort(df$value, decreasing = … Read more
To find the second and third lowest values in R Vector, you can use the “sort()” method. rv <- c(5, 12, 4, 2, 20, 8, 1) # Second and third lowest values sorted_rv_asc <- sort(rv, decreasing = FALSE) second_lowest <- sorted_rv_asc[2] third_lowest <- sorted_rv_asc[3] cat(“Second lowest value in vector:”, second_lowest, “\n”) cat(“Third lowest value in … Read more
To find the second and third highest values in R Vector, you can use the “sort()” method. x <- c(5, 12, 4, 2, 20, 8, 1) # Second and third highest values sorted_x_desc <- sort(x, decreasing = TRUE) second_highest <- sorted_x_desc[2] third_highest <- sorted_x_desc[3] cat(“Second highest value in vector:”, second_highest, “\n”) cat(“Third highest value in … Read more