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round all columns in R dataframe to 3 digits

By Courageous CobraCourageous Cobra on Nov 18, 2020 
round_df <- function(x, digits) {
    # round all numeric variables
    # x: data frame 
    # digits: number of digits to round
    numeric_columns <- sapply(x, mode) == 'numeric'
    x[numeric_columns] <-  round(x[numeric_columns], digits)
    x
}

round_df(data, 3)

Source: stackoverflow.com

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how to round all numeric column types in r

By Courageous CobraCourageous Cobra on Nov 17, 2020 
library(dplyr)
df %>% 
 mutate_if(is.numeric, round)

Source: stackoverflow.com

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