Displaying 20 results from an estimated 6000 matches similar to: "How to point a column of dataframe by a "character""
2010 Jul 28
0
Fwd: How to point a column of dataframe by a "character"
(Forgot to copy the list.)
Begin forwarded message:
> From: David Winsemius <dwinsemius at comcast.net>
> Date: July 28, 2010 7:44:38 AM EDT
> To: Tony <lulala at gmail.com>
> Subject: Re: [R] How to point a column of dataframe by a "character"
>
>
> On Jul 28, 2010, at 5:35 AM, Tony wrote:
>
>> Hello,
>>
>> Here is a dilemma I am
2013 Mar 01
1
.Call interface: Use R SEXP as C mutable *char
Dear R Developers,
DISCLAIMER: I am new to package development in R and new to this list.
I am trying to do something along the lines of:
SEXP test_fun (SEXP filename) {
const char *inputfile = translateChar(STRING_ELT(filename, 0));
int abc = some_function(inputfile);
...
}
The code compiles fine, but I get a warning:
"passing argument of 'some_function' discards qualifiers
2010 Oct 01
3
scoping goes wrong when some functions are used within others.
Dear,
I'm following the r tag on stackoverflow.com, and couldn't but notice
there are quite some questions popping up that deal with scoping in
relation to custom functions. I grinded my teeth on it already, and I
have absolutely no clue what goes wrong. The general pattern is as
follows :
ff <- function(x){
y <- some_value
some_function(y)
}
> ff(x)
Error in eval(expr,
2011 Nov 20
1
place values into a matrix efficiently?
This question attacked me as I was thinking about matrix value updates.
I probably will never need to do this, but wanted to ask if there are
efficient methods to perform the for-loop in the following sequence.
%xymat<-matrix(rep(0,100) nr=10,nc=10) # empty matrix
%x<-1:10
%y<-sample.int(10,10,rep=T)
%for (j in 1:10) xymat[x[j],y[j]] <- some_function(x[j],y[j]) #to create
either
2007 May 25
1
3D plots with data.frame
Dear all,
Thank you for any help. I have a data.frame and would like to plot
it in 3D. I have tried wireframe() and cloud(), I got
scatterplot3d(xs)
Error: could not find function "scatterplot3d"
> wireframe(xs)
Error in wireframe(xs) : no applicable method for "wireframe"
> persp(x=x, y=y, z=xs)
Error in persp.default(x = x, y = y, z = xs) :
(list)
2002 Aug 30
4
(PR#1964) The attached function working fine with R 1.3.0 but giving problem with R 1.5.1 (PR#1964)
The division part of the following code is not executing -
(seq(n-1)*mean(XS)-cumsum(XS[seq(n-1)]))*diff(XS)/((n-1)*var(XS))
Note: Prof Yatracos: Would you please send them one example ?
Thanks,
Kaushik
-----Original Message-----
From: ripley@stats.ox.ac.uk [mailto:ripley@stats.ox.ac.uk]
Sent: Friday, August 30, 2002 4:27 PM
To: Kaushik Bhattacharyya
Cc: r-devel@stat.math.ethz.ch;
2009 Mar 09
4
[PATCH] ocfs2: Use xs->bucket to set xattr value outside.
Tristan,
could you please run your xattr test against it?
xs->base used to be allocated a 4K size and all the contents in the
bucket are copied to the it. So in ocfs2_xattr_bucket_set_value_outside,
we are safe to use xs->base + offset. Now we use ocfs2_xattr_bucket to
abstract xattr bucket and xs->base is initialized to the start of the
bu_bhs[0]. So xs->base + offset will overflow
2011 Jun 28
2
minor Hivex.xs leaks
Hi Rich,
While I was looking at hivex today I ran coverity on it.
It spotted one problem but missed a similar one nearby.
The following are from Hivex.xs: (generated by generator.ml)
void
node_set_values (h, node, values)
hive_h *h;
int node;
pl_set_values values = unpack_pl_set_values (ST(2));
PREINIT:
int r;
PPCODE:
r = hivex_node_set_values (h, node,
2017 Sep 21
1
Add wrapper to Shiny in R package
Thank you Thierry. I'm trying to following your suggestion in the example
below, but getting:
Error in get("xs", envir = my.env) : object 'my.env' not found.
library(shiny)
library(shinydashboard)
myApp <- function(x, ...) {
xs <- scale(x)
my.env <- new.env()
assign("xs", xs, envir = my.env)
shiny::runApp(app)
}
app = shinyApp(
ui =
2016 Jul 07
2
Re: [PATCH v3 4/8] mllib: Add some imperative list manipulation functions.
On Thursday 07 July 2016 17:30:03 Richard W.M. Jones wrote:
> This adds imperative list manipulation functions inspired by Perl.
> The functions are passed list refs which get updated in place.
>
> This allows us to replace some awkward pure functional code like:
>
> let xs = ys in
> let xs = if foo then xs @ zs else xs in
>
> with:
>
> let xs = ref ys in
2014 May 13
2
new warnings in hivex-1.3.10
hivex-1.3.10 does not pass the sles11sp3 post-build-checks anymore,
1.3.8 was still ok. The relevant output is:
...
[ 57s] Hivex.xs: In function 'XS_Win__Hivex_node_name':
[ 57s] Hivex.xs:236: warning: implicit declaration of function 'newSVpvn_utf8'
[ 57s] Hivex.xs:236: warning: assignment makes pointer from integer without a cast
[ 57s] Hivex.xs: In function
2006 Jan 30
4
Loops that last for ever...
Hello, good morning or evening!...
After studying some of the examples at S-poetry Document, I tried to
implement some of the concepts in my R script, that intensively uses
looping constructs. However I did not manage any improvement.
My main problem is that I have a list of a lot of data e.g.:
> xs
[[1]]
[1]........................[1000]
[[2]]
[1]........................[840]
...
[[50]]
2016 Sep 12
1
Counterintuitive use of LLVMBool in C-API?
Of course, this is normal for C-APIs. But maybe change the name to
LLVMResult to propagate the real use? I am not arguing about the results
themself. They are standard. But the name is missguiding. As long as it's
consistent i know that i have to write an extra record operator in Delphi
to reflect this.
2016-09-12 11:11 GMT+02:00 David Chisnall <David.Chisnall at cl.cam.ac.uk>:
> On
2009 Mar 30
2
[LLVMdev] RFC: X86InstrFormats.td Refactoring
There is some redundancy at the instruction format level in the x86 .td files.
For example, in X86InstrFormats.td:
// SSE1 Instruction Templates:
//
// SSI - SSE1 instructions with XS prefix.
class SSI<bits<8> o, Format F, dag outs, dag ins, string asm, list<dag>
pattern>
: I<o, F, outs, ins, asm, pattern>, XS, Requires<[HasSSE1]>;
// SSE3 Instruction
2011 Apr 01
5
Predicción de valor máximo en superficie de respuesta, con paquete rsm
Hola compañeros de la lista. Estoy aprendiendo a usar el paquete
"rsm" para superficies de respuesta. Siguiendo este ejemplo todo va
bien, hasta que trato de obtener el valor máximo predicho para la
variable de respuesta en los valores de x1 y x2 estimados.
-------------------------------------------------------------
library("rsm")
ChemReact
CR <- coded.data(ChemReact,
2016 Jul 08
2
Re: [PATCH v3 4/8] mllib: Add some imperative list manipulation functions.
On Thu, Jul 07, 2016 at 06:08:43PM +0100, Richard W.M. Jones wrote:
> On Thu, Jul 07, 2016 at 07:00:46PM +0200, Pino Toscano wrote:
> > On Thursday 07 July 2016 17:30:03 Richard W.M. Jones wrote:
> > > This adds imperative list manipulation functions inspired by Perl.
> > > The functions are passed list refs which get updated in place.
> > >
> > > This
2017 Sep 21
0
Add wrapper to Shiny in R package
Dear Axel,
I've used environment for such problems.
assign("xs", xs, envir = my.env) in the myApp function
get("xs", envir = my.env) in the server function
Best regards,
ir. Thierry Onkelinx
Statisticus/ Statiscian
Vlaamse Overheid / Government of Flanders
INSTITUUT VOOR NATUUR- EN BOSONDERZOEK / RESEARCH INSTITUTE FOR NATURE
AND FOREST
Team Biometrie &
2006 Mar 16
2
DIfference between weights options in lm GLm and gls.
Dear R-List users,
Can anyone explain exactly the difference between Weights options in lm glm
and gls?
I try the following codes, but the results are different.
> lm1
Call:
lm(formula = y ~ x)
Coefficients:
(Intercept) x
0.1183 7.3075
> lm2
Call:
lm(formula = y ~ x, weights = W)
Coefficients:
(Intercept) x
0.04193 7.30660
> lm3
Call:
2016 Sep 23
2
[PATCH 1/2] mllib: move remove_duplicates from v2v
Simple code motion.
---
mllib/common_utils.ml | 9 +++++++++
mllib/common_utils.mli | 6 ++++++
v2v/utils.ml | 9 ---------
v2v/utils.mli | 3 ---
4 files changed, 15 insertions(+), 12 deletions(-)
diff --git a/mllib/common_utils.ml b/mllib/common_utils.ml
index 81d8202..78618f5 100644
--- a/mllib/common_utils.ml
+++ b/mllib/common_utils.ml
@@ -297,6 +297,15 @@ let sort_uniq
2010 Sep 23
2
dnorm
Dear R-users
Idea:
Plot a dnorm line using specific mean/sd to complete a histogram (skewed). xs:range of y-values, ys: dnorm function
Problem:
I expected to multiply the ys function with the sample size (n=250-300). I was wondering about a factor between 12'000 and 30'000 to match the size of the dnorm line with the specific histogram.
Thanks
Sibylle
hist(Biotree[Ld,]$Height2008,