You can abuse the S4 class system to do this.
setClass("Size") # no representation, no prototype
setAs(from="character", to="Size", # nothing but a coercion method
function(from){
ret <- factor(from, levels=c("Small","Medium","Large"), ordered=TRUE)
class(ret) <- c("Size", class(ret))
On 19/12/2018 6:48 AM, Luigi Marongiu wrote:
Thank you,
that worked fine for me.
Best wishes of merry Christmas and happy new year,
Luigi
Actually it's wrong! Sorry about that.
If you look at my.data.new$column_2, you'll see that the levels have
changed:
> my.data
column_1 column_2
Thank you,
that worked fine for me.
Best wishes of merry Christmas and happy new year,
Luigi
On Wed, Dec 19, 2018 at 12:19 PM Duncan Murdoch
wrote:
>
> On 19/12/2018 5:58 AM, Luigi Marongiu wrote:
> > Dear all,
> > I have a data frame with character values where each character is a
> > level;
On 19/12/2018 5:58 AM, Luigi Marongiu wrote:
Dear all,
I have a data frame with character values where each character is a
level; however, not all columns of the data frame have the same
characters thus, when generating the data frame with stringsAsFactors
= TRUE, the levels are different for
Dear all,
I have a data frame with character values where each character is a
level; however, not all columns of the data frame have the same
characters thus, when generating the data frame with stringsAsFactors
= TRUE, the levels are different for each column.
Is there a way to provide a single
5 matches
Mail list logo
