Displaying 20 results from an estimated 3000 matches similar to: "Equivalent of gtools::mixedsort in R base"
2018 Mar 12
0
Equivalent of gtools::mixedsort in R base
???
> 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
2018 Mar 12
1
Equivalent of gtools::mixedsort in R base
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, mixedrank ) )
2018 Mar 12
0
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, 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 <- data.frame(method=c("New","New","Old","Old","Old"),
2018 Mar 12
0
Equivalent of gtools::mixedsort in R base
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)),
2010 Jul 17
4
sort file names in numerical order
Hello,
I get some file names by list.files().
These names are in alphabetical order.
I want to change it to logical numeric order.
Example:
> fileNames <- c("A10", "A1", "A2", "B1", "B2", "B10")
> sort(fileNames)
[1] "A1" "A10" "A2" "B1" "B10" "B2"
I want to have:
2009 Jul 10
3
strange strsplit gsub problem 0 is this a bug or a string length limitation?
I was working with the rmetrics portfolioBacktesting function and dug into
the code to try to find why my formula with 113 items, i.e. A1 thru A113,
was being truncated and I only get 85 items, not 113.
Is it due to a string length limitation in R or is it a bug in the strsplit
or gsub functions, or in my string?
I'd very much appreciate any suggestions
============Input script:
2012 Feb 28
2
Error: could not find function "hier.part"
Error: could not find function "hier.part"
things I have tried:
1. reinstall R (lastest version, on windows XP)
2. install package "gtools"
3. include:
library(gtools)
require(gtools)
4. how I call this function:
hier.part(c$Y, xdata, fam = "gaussian", gof = "Rsqu")
5.when I try to check what's in the package "gtools", I get (hier.part is
2012 May 28
1
Why R order files as 1 10 100 not 1 2 3 ?
The code given below worked well. However, the problem is that when I typed
dir1 to see the results I found that R order the files as:
[1] "data1.flt" "data10.flt" "data100.flt" "data101.flt"
[5] "data102.flt" "data103.flt" "data104.flt" "data105.flt"
[9] "data106.flt" "data107.flt"
2018 Apr 09
3
Question about subset
Hi,
The help page for subset states "subset: logical expression indicating elements or rows to keep: missing values are taken as false."
Before I try to re-invent the wheel, I would like to know if one of the base or recommended packages would contain a variant of the subset function that would consider missing values as true.
Thanks
2009 May 14
1
Problem with viewports, print.trellis and more/newpage
Dear R-users,
I have got the following problem. I need to create 4x2 arrays of
xyplot's on several pages. The plots are created within a loop and
plotted using the print function. It seems that I cannot find the proper
grid syntax with my viewports, and the more/newpage arguments.
The following script is a simplification but hopefully will suffice to
illustrate my problem. Any suggestion
2009 Apr 28
1
Understanding padding in lattice
Dear R-users,
I am trying to understand what the different padding arguments in
trellis.par.set are exactly controlling the space around lattice plots.
I have used the following code as a basis for testing but it did not
really help me to visualize how the value of each argument changes the
margins and the plotting area. I guess a better way to visualize the
effects of these padding items
2009 Feb 03
2
Numeric class and sasxport.get
Dear R-users,
The sasxport.get function (from the Hmisc package) automatically defines
the class of imported variables. I have noticed that the class of
theoretically numeric variables is simply "labelled", although character
variables might end up been defined as "labelled" "Date" or "labelled"
"factor".
Is there a way to tell sasxport.get to
2018 Apr 09
0
Question about subset
Sent from my iPhone
> On Apr 8, 2018, at 9:06 PM, Sebastien Bihorel <sebastien.bihorel at cognigencorp.com> wrote:
>
> Hi,
>
> The help page for subset states "subset: logical expression indicating elements or rows to keep: missing values are taken as false."
>
> Before I try to re-invent the wheel, I would like to know if one of the base or recommended
2009 Apr 20
3
How to force axis to have the same range
Dear R-users,
I am trying to produce (standard and trellis) scatterplots which use the
same range of the x and y axes. In addition, I would like the plots to
be physically square. Is there one or more specific argument(s) to plot
and xyplot what would do that? I have looked at various combinations of
asp and pin value, but could not get what I wanted..
Thank you in advance for your help
2009 Sep 02
2
combining grid.text, expression and variables
Dear R-users,
I am trying to use the grid.text and expression functions to display
several character strings and plotmath text on a viewport. Some strings
can include a variable portion (PI.limits in the following example),
which I thought could be implemented by combining the bquote and the
expression functions. Unfortunately, my expressions do not seem to be
evaluated. I would greatly
2009 Aug 21
2
Problem with passing a string to subset
Dear R-users,
The following question bothered me for the whole afternoon: how can one
pass a string as the conditioning argument to subset? I tried plain
mystr, eval(mystr), expression(mystr), etc... I don't to be able to find
the correct syntax
> foo <- data.frame(a=1:10,b=10:1,c=rep(1:2,5))
> mystr<-"c==1"
> subset(foo,c==1)
a b c
1 1 10 1
3 3 8 1
5 5 6
2018 May 03
1
Calling the curve function with a character object converted into an expression
Typo: should be NULL not NUL of course
An alternative approach closer to your original attempt is to use
do.call() to explicitly evaluate the expr argument:
w <- "1 + x^2"
do.call(curve, list(expr = parse(text = w), ylab ="y"))
Cheers,
Bert
Bert Gunter
"The trouble with having an open mind is that people keep coming along
and sticking things into it."
-- Opus
2018 May 03
2
Calling the curve function with a character object converted into an expression
Hi,
Down a cascade of function calls, I want to use the curve function with an expression that is a variable. For various reason, this variable must be a character object and cannot be an expression as required by the curve function. How do I convert my variable into a expression that is accepted by curve?
Thanks in advance for your help.
## The following attempts do not work
myf <-
2009 Jun 27
1
Multiple parking lots use default park positions
Hello, all. I'm having a deeply frustrating time getting multiple
parking lots to work and am wondering what I am doing wrong. I am using
Asterisk 1.6.1.1. I defined two separate parking lots in features.conf
as follows:
[parkinglot_a100] ; SSI
context => a100-parking
parkpos => 900-920
findslot => next
[parkinglot_a10] ; EBC
context => a10-parking
parkpos => 800-820
2008 Jan 20
3
Logical test and look up table
Dear R users,
I have a data frame with one column (4000 rows) containing name codes
(factor with 63 levels). I would like to associate each name with a
particular Type (coded as 1,2,3,4,H or H1) in a second column. Is it
possible to do a lookup table of associations (i.e. A23 is of type 1, A13
is of type 3 ...) so as to fill up automatically the $Type column.
df()
$Source $Type
A23
A24
A9
A32