Displaying 18 results from an estimated 18 matches for "newarrays".
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newarray
2012 Oct 15
2
Chopping a two column data frame by rows into a three dimensional array.
If I have a two column data frame like:
> dat <- cbind("x"=c(1:100),"y"=c(100:1))
How can I create an array that splits every ten rows of that data frame
into a third dimension of an array so that:
> newarray[,,1]
,,1
x y
1 100
2 99
3 98
... ...
10 91
,,2
x y
11 90
12 89
... ...
...
Thanks.
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2014 Dec 01
2
[LLVMdev] Optimization hints for "constant" loads
On 12/01/2014 11:14 AM, Andrew Trick wrote:
>
>> On Oct 21, 2014, at 4:03 PM, Philip Reames <listmail at philipreames.com
>> <mailto:listmail at philipreames.com>> wrote:
>>
>> Sanjoy made a good point. We don't actually need a new variant of
>> "invariant.start". Simply using an invariant.start with no uses
>> gives us a notion
2014 Dec 01
2
[LLVMdev] Optimization hints for "constant" loads
On 12/01/2014 02:42 PM, Andrew Trick wrote:
>
>> On Dec 1, 2014, at 2:21 PM, Philip Reames <listmail at philipreames.com
>> <mailto:listmail at philipreames.com>> wrote:
>>
>>
>> On 12/01/2014 11:14 AM, Andrew Trick wrote:
>>>
>>>> On Oct 21, 2014, at 4:03 PM, Philip Reames
>>>> <listmail at philipreames.com
2014 Oct 21
3
[LLVMdev] Optimization hints for "constant" loads
On 10/21/2014 01:44 PM, Andrew Trick wrote:
>> On Oct 21, 2014, at 11:46 AM, Sanjoy Das <sanjoy at playingwithpointers.com> wrote:
>>
>> Thank you for the explanation, I think I misunderstood your solution
>> initially. Is it accurate to say: by making the definition of the
>> source pointer of an !invariant load control (or data) dependent on
>> some
2010 Dec 28
1
rJava question
After some trial and error I figured out how to pass matrices from R to java
and back
using rJava, but this method is not documented and I wonder if there is a
better way?
Anyway, here is what I found works:
(m = matrix(as.double(1:12),3,4))
[shows m as you would expect]
jtest <- .jnew("JTest")
(v <- .jcall(jtest, '[[D], 'myfunc', .jarray(m), evalArray=FALSE))
[shows
2011 Jul 20
3
Coercing Logical array to Numeric array
Dear all,
Coercing a logical vector to a numeric one is easy. The as.numeric function is used. However what do we use when we have a matrix or an array?
Sumona
2005 Jun 24
0
[LLVMdev] variable sized structs in LLVM
On Mon, 20 Jun 2005, Carl Friedrich Bolz wrote:
> I'm having problems figuring out how to do variable sized structs in LLVM
> (which are neccessary for PyPy's LLVM backend, on which I'm working). I'm
> trying to do the equivalent of
...
> in LLVM, where the items array can be arbitrarily long. I guess that the
> struct definition should be something like:
>
2020 Jun 09
2
valgrind false positive on R startup?
Hi all,
I'm on Ubuntu 18.04, running R-4.0.0 which I compiled from source, and
using valgrind I am always seeing the following message. Does anybody
else see that? Is that a known false positive? Any ideas how to
fix/suppress? Seems related to TRE, do I need to upgrade that?
(base) tdhock at maude-MacBookPro:~/R/binsegRcpp$ R --vanilla -d valgrind
-e 'extSoftVersion()'
==9565==
2005 Jun 20
4
[LLVMdev] variable sized structs in LLVM
Hi LLVM-dev!
I'm having problems figuring out how to do variable sized structs in
LLVM (which are neccessary for PyPy's LLVM backend, on which I'm
working). I'm trying to do the equivalent of
struct array {
long refcount;
long length;
long items[1];
};
in LLVM, where the items array can be arbitrarily long. I guess that the
struct definition should
2005 Jun 24
2
[LLVMdev] variable sized structs in LLVM
> This is almost exactly what you want to do. Please make the array be [0 x
> int] though, as it is undefined in llvm to access past the end of an array
> with non-zero length. I added a note about zero-length arrays here:
>
> http://llvm.cs.uiuc.edu/docs/LangRef.html#i_getelementptr
> http://llvm.cs.uiuc.edu/docs/LangRef.html#t_array
>
> As you mention above, you
2012 Aug 15
3
[Bug 53519] New: Missing bits of geometry in Unigine tropics
https://bugs.freedesktop.org/show_bug.cgi?id=53519
Bug #: 53519
Summary: Missing bits of geometry in Unigine tropics
Classification: Unclassified
Product: Mesa
Version: git
Platform: Other
OS/Version: All
Status: NEW
Severity: minor
Priority: medium
Component: Drivers/DRI/nouveau
2020 Jun 10
0
valgrind false positive on R startup?
It is known, with a known workaround, see e.g.
https://www.stats.ox.ac.uk/pub/bdr/memtests/README.txt . Set
suppressions in ~/.valgrindrc, e.g. the CRAN check machine has
--suppressions=/data/blackswan/ripley/wcsrtombs.supp
It is an issue in your OS (glibc), not TRE nor R.
On 10/06/2020 00:21, Toby Hocking wrote:
> Hi all,
>
> I'm on Ubuntu 18.04, running R-4.0.0 which I
2012 Jun 12
11
[vmw_vmci RFCv2 00/11] VMCI for Linux
Second revision of the VMware VMCI RFC patchset. It incorperates
fixes for all the feedback about the comment blocks and style and now
passes checkpatch with 0 errors and 0 warnings. Thanks to all who
have reviewed the code thus far.
* * *
In an effort to improve the out-of-the-box experience with Linux
kernels for VMware users, VMware is working on readying the Virtual
Machine Communication
2012 Jun 12
11
[vmw_vmci RFCv2 00/11] VMCI for Linux
Second revision of the VMware VMCI RFC patchset. It incorperates
fixes for all the feedback about the comment blocks and style and now
passes checkpatch with 0 errors and 0 warnings. Thanks to all who
have reviewed the code thus far.
* * *
In an effort to improve the out-of-the-box experience with Linux
kernels for VMware users, VMware is working on readying the Virtual
Machine Communication
2012 Jul 26
16
[vmw_vmci 00/11] VMCI for Linux
In an effort to improve the out-of-the-box experience with Linux
kernels for VMware users, VMware is working on readying the Virtual
Machine Communication Interface (vmw_vmci) and VMCI Sockets
(vmw_vsock) kernel modules for inclusion in the Linux kernel. The
purpose of this post is to acquire feedback on the vmw_vmci kernel
module. The vmw_vsock kernel module will be presented in a later post.
2012 Jul 26
16
[vmw_vmci 00/11] VMCI for Linux
In an effort to improve the out-of-the-box experience with Linux
kernels for VMware users, VMware is working on readying the Virtual
Machine Communication Interface (vmw_vmci) and VMCI Sockets
(vmw_vsock) kernel modules for inclusion in the Linux kernel. The
purpose of this post is to acquire feedback on the vmw_vmci kernel
module. The vmw_vsock kernel module will be presented in a later post.
2012 May 15
13
[vmw_vmci RFC 00/11] VMCI for Linux
In an effort to improve the out-of-the-box experience with Linux
kernels for VMware users, VMware is working on readying the Virtual
Machine Communication Interface (vmw_vmci) and VMCI Sockets (vmw_vsock) kernel
modules for inclusion in the Linux kernel. The purpose of this post
is to acquire feedback on the vmw_vmci kernel module. The vmw_vsock
kernel module will be presented in a later post.
2012 May 15
13
[vmw_vmci RFC 00/11] VMCI for Linux
In an effort to improve the out-of-the-box experience with Linux
kernels for VMware users, VMware is working on readying the Virtual
Machine Communication Interface (vmw_vmci) and VMCI Sockets (vmw_vsock) kernel
modules for inclusion in the Linux kernel. The purpose of this post
is to acquire feedback on the vmw_vmci kernel module. The vmw_vsock
kernel module will be presented in a later post.