Displaying 20 results from an estimated 1000 matches similar to: "Need Help"
2010 Mar 30
1
R package checking error.
Dear useRs,
I am trying to build my package (nonpareff) which deals with some models of
data envelopment analysis.
The building worked well, but checking complains when it tests examples.
Zipped nonparaeff.Rcheck is attached.
Following is the log.
---------------------------------------------
arecibo:tmp arecibo$ R CMD build nonparaeff/
* checking for file 'nonparaeff/DESCRIPTION' ...
2012 Nov 17
2
Basic Stats question
Dear All
I am a stats newbie and have a basic stats question;
i have y as dependent variable and x1 to x5 as dependent variable.
I need to know which variables x1 to x5 are actually affecting y. How
do I find out?
can an example be given which makes things clear (if possible)?
Thanks
Parth
2010 Mar 30
1
Error when checking a package.
Dear useRs,
I am trying to build my package (nonpareff) which deals with some models of
data envelopment analysis.
The building worked well, but checking complains when it tests examples.
Zipped nonparaeff.Rcheck is attached.
Following is the log.
---------------------------------------------
arecibo:tmp arecibo$ R CMD build nonparaeff/
* checking for file 'nonparaeff/DESCRIPTION' ...
2018 Apr 16
1
Math kernel library from intel
I use win 10 ( 64 bit) with latest R available. Intel has released math
kernel library. Is it necessary to install for data driven work ?
Regards
Partha
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2010 Oct 10
1
Parallel processing
1.what is the application to install for to speed up processing for
multicore processor in windows environment?
2. how to compute time for executing a particular a code?
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2010 Nov 17
2
help on IDE
I am new comer in R.There r few IDE like Tinn R,VIM etc.I mean How to
use them? Do I need to install R and then install them to use or they
can work alone? Also does one install packages on R or IDEs? Can I
call/use the package from IDEs?
regards
Parth
--
Socrates, proclaimed: "I came to know one thing; that I know nothing".
2006 Jun 18
1
bug with boot.sw98 function (PR#8999)
Full_Name: Nuno Monteiro
Version: 2.3.1
OS: Windows XP HE
Submission from: (NULL) (84.9.38.207)
I'm using the FEAR library to perform Data Envelopment analysis with a 36,000
obs dataset.
The function dea is working fine but then when I try to use the boot.sw98 to
come up with some sensitivity analysis I get the following error:
2007 Oct 10
1
Deleting for() loop in function
Dear UseRs,
I wrote following function in order to solve Data Envelopment Analysis.
Reason for posting is that the function is slow when nrow(dat) is large.
I wonder if other functions could substitute the for() loop in the
code, such as mapply().
Can anybody help to rewrite the dea() function as efficiently as
possible?
The code is as follows:
2017 Dec 11
1
file creating
I am using R(3.4.3), Win 7(extreme edition) 32 bit,
I have 10 excel files data1,xls, data2.xls .. till data10.xls.
I want to create 10 dataframes . How to do ?
regards
Parth
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2010 Feb 21
1
Tutorials and scripts of Stochastic Frontier Analysis and Linear Programming.
Dear all,
I want to program my own models about Stochastic Frontier Analysis and
Linear programming (Data Envelopment Analysis). In this context, is there
anyone that may help me with some simple tutorials and scripts about these
issues?
Thanks a lot.
--
Marcus Vinicius Pereira de Souza, Prof.
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2005 Sep 07
4
[LLVMdev] LiveIntervals, replace register with representative register?
I don't understand the following code snippet in LiveIntervalAnalysis.cpp.
Why changing the type of the opreand from a virtual register to a
machine register? The register number (reg) is still a virtual
register index (>1024).
bool LiveIntervals::runOnMachineFunction(MachineFunction &fn) {
// perform a final pass over the instructions and compute spill
// weights, coalesce
2008 Sep 11
3
ZFS Crypto [Prelim] Codereview
Here''s my comments for the preliminary ZFS Crypto review.
- Dan
Webrev: http://cr.opensolaris.org/~darrenm/zfs-crypto-gate/webrev/
General comments:
DEA-1 - SCCS keywords need to be removed
DEA-2 - Copyright updated
------------------------------------------------------------------
usr/src/lib/libcryptoutil/common/keyfile.c pkcs11_read_data()
This code in pkcs11_read_data() scares
2010 Aug 29
1
[LLVMdev] [Query] Programming Register Allocation
Thanks for the information.
I still don't know how do I partition registers into different classes from
the virtual registers? For instance, I have the function who which iterates
over the instructions, but I don't know how to write the function which
returns the different register class.
void RAOptimal::Gather(MachineFunction &Fn) {
// Gather just iterates over the blocks,
2008 May 28
2
Linear Programming.
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2009 Feb 23
1
ActiveRecord::AssociationTypeMismatch
I have 2 models:
mop, has_and_belong_to_many :contacts
contact, has_and_belong_to_many :mops
when I save my mop Ii have the users coming in a an array:
["9",10"]
I am doing this to asscociate each one to a mop:
@contacts.each do |contact|
@mop.contacts << contact
end
Contact(#44950470) expected, got String(#20837400)
It is giving me the above error. Any ideas?
2017 Sep 25
1
Subset
Always via logical expressions. In this case you can use the logical expression
myDF$b != "0"
to give you a vector of TRUE/FALSE
B.
> On Sep 25, 2017, at 8:00 AM, Shane Carey <careyshan at gmail.com> wrote:
>
> This is super, really helpfull. Sorry, one final question, lets say I wanted to remove 0's rather than NAs , what would it be?
>
> Thanks
>
2011 Nov 24
1
AlgDesign - $D $A $Ge $Dea
Hi,
I am wondering how I should interpreate the output of optFederov() in AlgDesign.
Specially I want to know what is $D, $A, $Ge and $Dea, which one I can use as an efficiency to say how good the optimal design is.
I only know when a orthogonal design comes, $D = 1.
I red the pdf document -- vignette("AlgDesign")
[Just type: vignette("AlgDesign") in R, you will get
2017 Sep 25
0
Subset
This is super, really helpfull. Sorry, one final question, lets say I
wanted to remove 0's rather than NAs , what would it be?
Thanks
On Mon, Sep 25, 2017 at 12:41 PM, Boris Steipe <boris.steipe at utoronto.ca>
wrote:
> myDF <- data.frame(a = c("<0.1", NA, 0.3, 5, "Nil"),
> b = c("<0.1", 1, 0.3, 5, "Nil"),
>
2017 Sep 25
2
Subset
myDF <- data.frame(a = c("<0.1", NA, 0.3, 5, "Nil"),
b = c("<0.1", 1, 0.3, 5, "Nil"),
stringsAsFactors = FALSE)
# you can subset the b-column in several ways
myDF[ , 2]
myDF[ , "b"]
myDF$b
# using the column, you make a logical vector
! is.na(as.numeric(myDF$b))
# This can be used to select the