Displaying 20 results from an estimated 20000 matches similar to: "What is the difference between double quote (") and single quote (')?"
2009 Aug 10
5
Example scripts for R Manual
Hi,
I am wondering if some experienced users would help put the
ready-to-run code of the examples in the manuals. It would help new
users  learn R faster by putting all the examples in an ready-to-run R
script file. Can somebody help do so sometime and post the code along
with the pdf manuals?
http://cran.r-project.org/manuals.html
Regards,
Peng
2019 Jan 28
2
How to generate .bc file using configure && make on Mac OS X?
>
> but doesn't emit optnone and nounwind attributes
>
s/nounwind/noinline
On Mon, Jan 28, 2019 at 11:35 AM Jakub (Kuba) Kuderski <
kubakuderski at gmail.com> wrote:
> As far as I understand, gllvm doesn't run LTO pipeline or any cross-module
> optimization, and the optimization level provided is only used to compile
> each Translation Unit separately.
> If you
2012 Dec 30
4
[LLVMdev] git repository of the tutorial
Hi,
I'm learning the tutorial.
http://llvm.org/docs/tutorial/
I'm wondering if there is already a git repository of the examples in
the tutorial so that I don't have to copy the code from the webpage.
Thanks!
-- 
Regards,
Peng
2009 Sep 14
3
How to refer to the last a few rows?
Hi,
x=matrix(1:60,nr=6)
I can refer the last 2 rows by
x[5:6,]
If I don't know the total number of rows is 6, is there a way to refer
the last 2 rows?
Regards,
Peng
2009 Oct 02
3
How to get duplicated items in a vector?
Hi,
> x=c(rep(1,3),rep(3,2))
> x
[1] 1 1 1 3 3
> duplicated(x)
[1] FALSE  TRUE  TRUE FALSE  TRUE
>
As shown in the above code, 'duplicated' doesn't return 'F' for the
first '1' and first '3' in 'x'. I am wondering if there is a function
that can return an indicator for any element whether it appears in a
vector twice or more.
Regards,
Peng
2019 Jan 28
2
How to generate .bc file using configure && make on Mac OS X?
I did a sanity check and run some of the bitcode I complied with gllvm and
it seems to work fine under lli. The only issues is to make sure you load
all the (external) libraries the bitcode needs. I highly suggest you run a
debug version of lli under a debugger and see what exactly happens.
On Mon, Jan 28, 2019 at 12:45 PM Peng Yu <pengyu.ut at gmail.com> wrote:
> It seems that it does
2009 Aug 06
5
Is there a 'vi' mode in R?
Hi,
I'm wondering if R provide a vi mode in the command line just like
other shells such as bash do. Can somebody let me know?
Regards,
Peng
2009 Sep 14
2
What are the return values of aov?
Hi,
I don't quite understand what are the return values of aov. I know
that it has 'coefficients'. But I need to know what all the other
return values are. Can somebody let me know how to figure them?
Value:
     An object of class 'c("aov", "lm")' or for multiple responses of
     class 'c("maov", "aov", "mlm",
2009 Sep 06
2
How to pop up the graphics window from Rscript?
Hi,
I am wondering how to pop up the graphics window from Rscript. I run
the following code, but I don't see the graphics window, even
transiently.
Regards,
Peng
$ Rscript plot.R
> x=1:10
> y=1:10
> plot(x,y)
>
2009 Sep 05
2
How to 'apply' on multiple arguments?
Hi,
I am wonder if there is a function similar 'apply' but it could accept
multiple arguments?
For example, I have the following matrix.
x=matrix(1:6,nr=2)
y=matrix(1:6,nr=2)
I want to find a function that can be used to compute the linear
regression for each pair of rows in the two matrices?
multiple_apply(x,y,1,function(u,v){lm(u ~ v)}
That is, I wound like something like the above
2010 Feb 03
5
How to export the examples in help(something) to a file?
Some examples in the help page are too long to be copied from screen.
Could somebody let me know some easy way on how to extract the example
to a file so that I can play with them?
2015 Jan 06
2
[LLVMdev] Are there manpages for llvm?
Hi,
I have llvm installed through MacPorts. But I don't see macports
installed. Are there supposed to be manpages of commands like lli
installed?
-- 
Regards,
Peng
2009 Dec 18
4
How to print to file?
I don't find a function to print a string to file. Would somebody let
me know what function I should use?
2013 Jan 01
1
[LLVMdev] git repository of the tutorial
Hello Peng Yu,
I found the same error on my Macbook Air.
This was my first trying on MacOS X.
Troubleshooting this might take sometime.
Only thing I can say now that klang is tested successfully on Ubuntu with
- LLVM 3.2 official release on LLVM download page
- LLVM svn latest update
Clang compile produces an error message on MacOS X with the LLVM svn
latest update
I am trying to find the
2009 Sep 17
3
How to generate a matrix where each row (or column) is the same vector?
Hi,
I can use the following code to generate a matrix, each column of
which is 'x'. But I have to specify '5' twice in the second command. I
am wondering if there is a better way to do it.
> x=1:10
> matrix(rep(x,5),nc=5)
> t(matrix(rep(x,5),nc=5))
Regards,
Peng
2012 Dec 30
3
[LLVMdev] git repository of the tutorial
On Sat, Dec 29, 2012 at 7:30 PM, Journeyer J. Joh
<oosaprogrammer at gmail.com> wrote:
> Hello Peng Yu and List,
>
> I have put toy.cpp into github but it has a form of LLVM project
> makefile infrastructure. So you can build it together with LLVM
> Project source tree.
>
> git://github.com/Journeyer/klang.git
>
> There exist many branches and each branch is for
2009 Oct 19
2
What is the difference between prcomp and princomp?
Some webpage has described prcomp and princomp, but I am still not
quite sure what the major difference between them is. Can they be used
interchangeably?
In help, it says
     'princomp' only handles so-called R-mode PCA, that is feature
     extraction of variables.  If a data matrix is supplied (possibly
     via a formula) it is required that there are at least as many
     units as
2019 Jan 28
2
How to generate .bc file using configure && make on Mac OS X?
This works great.
> You can also try using the gllvm wrapper: https://github.com/SRI-CSL/gllvm ; it's quite reliable and easy to use in my experience.
Just to be sure. Only one version of bc file will be generated that
corresponds to the compiler options provide at configure?
The original approach using ld.gold will provide several .bc files
that correspond to different stages of the
2009 Aug 11
3
R help from command line
Hi,
I frequently need to open multiple help pages in R, which requires the
start of multiple R sessions. I am wondering if there is a way to
invoke the help page from the command line just like 'man'.
Regards,
Peng
2012 Dec 30
0
[LLVMdev] git repository of the tutorial
Hello Peng Yu and List,
I have put toy.cpp into github but it has a form of LLVM project
makefile infrastructure. So you can build it together with LLVM
Project source tree.
git://github.com/Journeyer/klang.git
There exist many branches and each branch is for each chapter of Kaleidoscope.
Regards
Journeyer
2012/12/30 Peng Yu <pengyu.ut at gmail.com>:
> Hi,
>
> I'm learning