Thanks.
- Original Message -
From: "Gabor Grothendieck" <ggrothendi...@gmail.com>
To: "Sebastien Bihorel" <sebastien.biho...@cognigencorp.com>
Cc: r-help@r-project.org
Sent: Monday, March 12, 2018 3:49:10 PM
Subject: Re: [R] Equivalent of gtools::mixe
split any mixed columns into letter and number columns
and then order can be used on that:
DF <- data.frame(x = c("a10", "a2", "a1"))
o <- do.call("order", transform(DF, let = gsub("\\d", "", x),
no =
as.numeric(gsub("\\D", "", x)),
l.com>
Cc: "Sebastien Bihorel" <sebastien.biho...@cognigencorp.com>, "R-help"
<r-help@r-project.org>
Sent: Monday, March 12, 2018 2:11:03 AM
Subject: Re: [R] Equivalent of gtools::mixedsort in R base
x <- c( "a1", "a10", "a2" )
y &
tien.biho...@cognigencorp.com>
Cc: r-help@r-project.org
Sent: Monday, March 12, 2018 10:56:43 AM
Subject: Re: [R] Equivalent of gtools::mixedsort in R base
1- mixedorder does not work in a "do.call(mixedorder, mydataframe)" call like
the order function does
This is tangential, b
.com>
Cc: "R-help" <r-help@r-project.org>
Sent: Monday, March 12, 2018 12:57:00 AM
Subject: Re: [R] Equivalent of gtools::mixedsort in R base
???
> y <- sort( c("a1","a2","a10","a12","a100"))
> y
[1] "a1
1- mixedorder does not work in a "do.call(mixedorder, mydataframe)"
call like the order function does
This is tangential, but do.call(order, mydataframe) is not safe to use in a
general purpose function either - you need to remove the names from
the second argument:
> d <-
x <- c( "a1", "a10", "a2" )
y <- c( "b10", "b2", "a12", "ca1" )
DF <- expand.grid( x = x, y = y )
# randomize
set.seed( 42 )
DF <- DF[ sample( nrow( DF ) ), ]
# missing from gtools
mixedrank <- function( x ) {
seq.int( length( x ) )[ gtools::mixedorder(x) ]
}
o <- do.call( order, lapply( DF,
???
> y <- sort( c("a1","a2","a10","a12","a100"))
> y
[1] "a1" "a10" "a100" "a12" "a2"
> mixedsort(y)
[1] "a1" "a2" "a10" "a12" "a100"
**Please read the docs!** They say that mixedsort() and mixedorder() both
take a **single vector** as the argument to be sorted or ordered and, as
Hi,
Searching for functions that would order strings that mix characters and
numbers in a "natural" way (ie, "a1 a2 a10" instead of "a1 a10 a2"), I found
the mixedsort and mixedorder from the gtools package.
Problems:
1- mixedorder does not work in a "do.call(mixedorder, mydataframe)" call
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