[R] levels

[Jeff Newmiller]

Read the NEWS about R4.0.0 [1] (search for stringsAsFactors), or read any of the many announcements in blogs and forums around the Internet.

[1] https://cran.r-project.org/doc/manuals/r-release/NEWS.html

On July 15, 2020 1:31:06 AM PDT, andy elprama <andy.elprama using gmail.com> wrote:
>Dear R-users,
>
>Something strange happened within the command "levels"
>
>R version 3.6.1
>name <- c("a","b","c")
>values <- c(1,2,3)
>data <- data.frame(name,values)
>levels(data$name)
>[1] "a" "b" "c"
>
>R version 4.0
>name <- c("a","b","c")
>values <- c(1,2,3)
>data <- data.frame(name,values)
>levels(data$name)
>[1] NULL
>
>What is happening here?
>
>	[[alternative HTML version deleted]]
>
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-- 
Sent from my phone. Please excuse my brevity.