Displaying 20 results from an estimated 10000 matches similar to: "transfer string to expression"
2012 Jul 13
3
R2OpenBUGS quesion
Dear All:
Could anybody help me figure out why I get the Error message below while I
running the example code of bugs() function in R2OpenBUGS packages? I have
tried the code both in Win 7 and Ubuntu 12.04, but they show the same
message. My R version is 2.15.1 in win7 and 2.15.0 in Ubuntu. Many thanks !
Best,
Yilong
> schools.sim <- bugs(data, inits, parameters, model.file,+
2009 Jan 27
3
How to compare two regression line slopes
Hi,
I've made a research about how to compare two regression line slopes
(of y versus x for 2 groups, "group" being a factor ) using R.
I knew the method based on the following statement :
t = (b1 - b2) / sb1,b2
where b1 and b2 are the two slope coefficients and sb1,b2 the pooled
standard error of the slope (b)
which can be calculated in R this way:
> df1 <-
2011 Nov 01
2
Removal/selecting specific rows in a dataframe conditional on 2 columns
Dear list,
After reading different mails, blogs, and tried a few different codes without any success, I am asking your help!
I have the following data frame where each row represent a survey unit with the following variables:
> names(RV09)
[1] "record.t" "trip" "set" "month" "stratum" "NAFO"
[7]
2008 Feb 12
6
Matching Problem
Hi
I have this vector of strings.
MyData <- c("Test1","Test2","I(Test1^2)","I(Test2^3)","I(Test1.Test2^2)")
where I want to extract only the text after "I(" and before "^" so that the
string returned only contain c("Test1","Test2","Test1.Test2")
I am not very skilled in the use of matching
2004 Mar 11
3
making operators act on rows of a data frame
Dear R helpers,
I wish to use the "sum" operator for each row of a data frame.
However, it appears that the operator acts on the entire data
frame, over all columns. What is the best way to obtain row-
wise operation?
The following code shows my attempts so far, and their problems:-
test1=array(rbinom(120,1,0.5),c(20,3))
test1[,3]=NA
sum(test1[,1:2])
test1[,3][sum(test1[,1:2])>=2]=1
2010 Apr 05
2
changing column names in a dataframe
Hi folks,
I have imported data from an Excel spreadsheet. Columns in that spreadsheet
are named "name", "x", and "y", and several sets of those columns appear in
the worksheet. For example:
name x y name x y
test1 1 3 test2 4 4
test1 2 2 test2 5 5
test1 3 1 test2 6 6
When I import these data into R, into a dataframe, I end up with something
like this:
2008 Oct 15
4
[LLVMdev] LLVM 2.4 problem? (resend)
On 15.10.2008, at 3.42, Chris Lattner wrote:
>
> On Oct 14, 2008, at 12:52 PM, Tatu Vaajalahti wrote:
>
>>
>> Hi,
>>
>> I don't know enough C to know for certain if this is a programmer or
>> compiler error:
>
> Hi Tatu,
>
> With this information it is impossible to tell if it is your fault or
> llvm's fault. Please file a bug with a
2012 Dec 20
5
an entry level (stupid) question
Hello all, i'm a newbie to R and now I get stuck by the question, would
anybody help me please?
Suppose, I got the following
> test <- data.frame(test1=c(c(0.00, 0.005, 0.01, 0.015, 0.02)))
> test
test1
1 0.000
2 0.005
3 0.010
4 0.015
5 0.020
Now I want another column inside test, named test2
for i=c(1:5), If test$test1[i] is 0, then the value of test$test2[i] is
1/test1[i]
or
2005 Feb 23
3
filling columns in frame according to another column frame
R-help,
I have a frame which I want to fill up conditioning to another data
frame column.
The one I want to fill up is as follows (basically an empty one):
> test2
cm 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2
3 3 3 3
2014 Oct 31
3
ScalarLogical and setAttrib
Is it expected that attributes set on a LGLSXP created by
ScalarLogical will apply to all future objects created by
ScalarLogical as well? For example: the 'test1' function below returns
FALSE and 'test2' returns FALSE with an attribute:
library(inline)
test1 <- cfunction(body = 'return ScalarLogical(0);')
test2 <- cfunction(body = '
SEXP success =
2009 Mar 04
3
How to reuse my self function?
Dear all,
I wrote a function test1 in test1.R.
Right, I am writing another function test2 on test2.R and trying to use
test1 function.
How can I do?
Is there any similar way like including test1.R in test2.R file?
Thank You Very Much.
Jia-Ming
============================
$BD%2HLC(B Jia-Ming Chang
PhD Student
Comparative Bioinformatics Group
Bioinformatics and Genomics Programme
Centre
2017 Mar 31
2
CHECK-LABLE or CHECK?
Hi All,
I came across a FileCheck failure I don't understand why. The
example code below:
void test1() {
... code ...
// CHECK-LABEL: @test1
// CHECK: void @llvm.memcpy.p0i8.p0i8.i32 - (1)
}
void dummy() { // make (1) match
... code ...
// CHECK-LABEL: @dummy
}
void test2() {
... code ...
// CHECK-LABEL: @test2
//
2017 Dec 11
2
[lld] bug detecting undefined symbols in shared libraries
I have a test case where lld-5.0 fails to detect an undefined symbol (this
bug also happens with clang/lld 4.0). I haven't narrowed down exactly all
the circumstances when this can occur, but in this case it was for a
virtual method in a class defined in a shared library. If I build the
executable with the raw object files, the linker notices the missing method
(see test1 vs test2). This
2014 Jun 14
2
[LLVMdev] Issues with clang-llvm debug info validity
Hi all, sorry to post to both lists, but I'm running into an issue where
clang-generated debug info is deemed to be invalid by LLVM tools (throws an
assertion error in both llc and mcjit), and I'm not sure what the proper
resolution is.
Here's a test case; I last tested it on revision r210953:
$ cat test1.cpp
#include "test.h"
test::Test<int> foo1() {
return
2012 Apr 14
2
Calculate t.test for a matrix
Hello everyone,
I have a data frame (tt), see below (I only show 2 genes, actually I have a
lot):
group gene1 gene2 Control 28.9776 9.9355
Control 28.9499 10.0997 Control 29.5468 14.2995 Control 29.5246 13.9561
Test1 29.1864 9.7718 Test1 29.2048 10.0388 Test1 34.9563 11.9509 Test1
34.9464 11.8909 Test2 36.9566 14.5316 Test2 37.1309 14.5188 Test2 36.1017
2018 Jun 02
2
encoding argument of source() in 3.5.0
In R 3.5.0 using the `encoding' argument of source() prevents loading
files from the internet; without the `encoding' argument files can be
loaded from the internet, but if they contain non-ascii characters,
these are not correctly displayed under MS-Windows (but they are
correctly displayed under GNU/Linux). With R 3.4.{2,3,4} there is no
such problem: using `encoding' the files are
2011 Sep 07
4
suggestion for proportions
Hi, I am wondering if anyone can suggest how to test the equality of 2 proportions. The caveat here is that the 2 proportions were calculated from the same number of samples using 2 different tests. So essentially we are comparing 2 accuracy rates from same, say 100, samples. I think this is like a paired test, but don't know if really we need to consider the "paired" nature of the
2012 Jun 01
2
how to add a 'label' column
Hello R users,
I'd like to ask a question about how to add a new column. So, below is my
situation.
In order to perform the repeated ANOVA, I first imported the following
table.
score=read.csv("patients_tests.csv");
subject test1 test2 test3 test4 test5 test6
test7
1 ab 0.17687 0.16715 0.17009 0.16480 0.16116 0.24502 0.17975
2 cl
2009 Jun 05
2
S4: When is validObject issued? (or why S4 is killing me:( ..
Dear UseRs,
Does anyone know when exactly the validity is checked in S4? Documentation is silent:(.
Here is a small example:
setClass("test1",representation(a="numeric"))
setMethod("initialize","test1",
function(.Object,...){
a<-runif(1) ## here slot "a" is initialized ##
callNextMethod(.Object,a=a,...)
2020 Mar 10
4
R CMD INSTALL cannot recognize full path on Windows
Oops, I think both of us forget to cite the r-devel channel.
Best,
Jiefei
On Tue, Mar 10, 2020 at 5:13 AM Wang Jiefei <szwjf08 at gmail.com> wrote:
> Thanks for your quick response, Tomas.
>
> Yes, this is a path issue, I think the problem is related to R, not the
> Rtools make. I built an example package for reproducing the problem:
> https://github.com/Jiefei-Wang/example