Convert chararcter vector to numeric vector

[Jakub_Komarek]

Hi,

I have a dfv such as

library(dplyr)
#> 
#> Attaching package: 'dplyr'
#> The following objects are masked from 'package:stats':
#> 
#>     filter, lag
#> The following objects are masked from 'package:base':
#> 
#>     intersect, setdiff, setequal, union
a <- c("4", "3,4", "7")
b <- c("3,5", "3", "7,4")

df <- tibble(a,b)

and I would like to get mean value for each value. In this case, it would be:

a <- c(4, 3.5, 7)
b <- c(4, 3, 5.5)

I will appreciate your help.

Many thanks,

Jakub

[nirgrahamuk]

I don't understand this part of your post :

@Jakub_Komarek

I would like to get mean value for each value. In this case, it would be:

a <- c(4, 3.5, 7)
b <- c(4, 3, 5.5)

so, that aside, if you want the character strings interpreted as numeric values, then do this.

library(tidyverse)

a <- c("4", "3,4", "7")
b <- c("3,5", "3", "7,4")

df <- tibble(a,b)

(df2 <- mutate(df,
               across(everything(),
                      ~parse_number(str_replace_all(.x,",",".")))))

if you have further requirements for what to do with these numbers, please ask again with more clarity around that please.