Displaying 20 results from an estimated 81 matches for "pqr".
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2013 Apr 29
2
Adding elements in data.frame subsets and also subtracting an element from the rest elements in data.frame
...a.frame as
cashflow_df = data.frame(instrument = c("ABC","ABC","ABC","ABC","ABC","ABC","ABC","ABC","ABC","ABC","ABC","ABC","ABC","ABC", "ABC", "PQR", "PQR", "PQR","PQR","PQR","PQR","PQR","PQR","PQR","PQR", "PQR", "PQR", "PQR","PQR", "PQR","PQR","PQR","PQR", "PQR"...
2013 Jun 22
1
Announcing pqR - a faster version of R
I have released a new, faster, version of R, which I call pqR (for
"pretty quick" R), based on R-2.15.0. Among many other improvements,
pqR supports automatic use of multiple cores to perform numerical
computations in parallel with other numerical computations, and with
the interpretive thread. It also implements a true reference counting
scheme t...
2010 Feb 03
2
How to change output 'csv' file
Dear R helpers
After executing the R code, where the last few lines of the code are something like given below.
## Part of my R code
n = 20
........
.........
final_output = data.frame(Numbers = numbers, ABC = data1, XYZ = data2, PQR = data3)
write.csv(data.frame(Scenario = paste("Sc_", 1:n, sep = ""), final_output'), 'result.csv', row.names = FALSE)
## End of code
When I open the 'result.csv' file, my output is like
Scenario Numbers ABC ...
2012 May 30
3
Separate Array Variable Content
Hi,
I am new in R,
i have a matrix like this
MyMatrix <-
*ABC PQR XYZ*
10 20 30
40 50 60
70 80 90
And, i have an array containing some conditions like this,
MyArray <- c("*ABC*>50","*PQR*<50","*ABC*<30 &* XYZ*<40")
"ABC>50"
"PQR<50"
"ABC&l...
2010 Feb 10
3
Using R to format a file using a server (PDB to PQR file)
I am trying to write a program that uses R and takes a pdb file, and converts
it to a pqr file. This task is simple generally, using the website,
http://pdb2pqr-1.wustl.edu/pdb2pqr/. How do you use R to input a pdb file
(that is on hand) into the upload pdb file input, and run the website and
give the return file to be a pqr file. Thanks for your help.
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2010 Feb 10
4
Readjusting the OUTPUT csv file
Dear R helpers
I have some variables say ABC, DEF, PQR, LMN and XYZ. I am choosing any three varaibles at random at a time for my analysis and name these files as input1.csv, input2.csv and input3.csv. So if I choose variables say ABC, DEF and PQR, I am passing the specifications of these variables to input1.csv, input2.csv and input3.csv respectively....
2015 Sep 19
0
New version of the R parser in pqR
I have rewritten the R parser in the new version of pqR that I
recently released (pqR-2015-09-14, at pqR-project.org). The new
version of the parser is much cleaner, is faster (sometimes quite
substantially faster), has a better interface to the read-eval-print
loop, and provides a better basis for future extensions. The deparser
has also been substan...
2017 Oct 03
0
Revert to R 3.2.x code of logicalSubscript in subscript.c?
Suharto,
If you're interested in performance with subscripting, you might want
to look at pqR (pqR-project.org). It has some substantial performance
improvements for subscripting over R Core versions. This is
especially true for the current development version of pqR (probably
leading to a new release in about a month).
You can look at a somewhat-stable snapshot of recent pqR development...
2013 Apr 26
2
Splitting data.frame and saving to csv files
...64.71083712),
LMN_a = c(56.6768395,25.81530198,40.12268441,35.74175237,47.95892209),
ABC_e = c(11.36783959,62.29651784,47.63481552,32.27820673,52.12561419),
LMN_c = c(45.4484695,17.72362438,36.7690054,68.58912931,35.80767235),
XYZ_zz = c(85.74755089,63.48582415,81.61107212,58.1572924,27.44132817),
PQR = c(71.22867519,95.09994812,83.62437819,30.18524735,25.81804865),
ABC_d =
c(38.71089816,93.48216193,93.14432203,78.2738731,31.87170019),
ABC_m = c(40.28473769,43.97076327,47.38761559,97.33573412,22.06884976))
> df
date ABC_f LMN_d XYZ_p LMN_a ABC_e
1 2013-04-15 62.80740...
2010 Feb 10
1
Converting pdb to pqr
There are websites using python to convert a pdb to a pqr. I was wondering if
there is a simpler way to do it. We have a protein in pdb format, and want
to convert that to a pqr file so that the program apbs can open it. We want
to accomplish this conversion in R. Thank you for your help.
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2014 Jun 23
2
Unfixed bugs in latest R-patched
A new version of pqR is now available at pqR-project.org, which fixes
several bugs that are also present in the latest R Core patch release
(r66002). A number of bugs found previously during pqR development
are also unfixed in the latest R Core release. Here is the list of
these bugs that are unfixed in r66002 (inclu...
2012 Jul 11
4
MODE , VARIANCE , NTH PERCENTAILE
Hi,
Here i have an matrix like this,
ABC PQR XYZ MNO
------ ------- ------ --------
3 6 7 15
2 12 24 15
20 5 1 2
25 50 15 35
i need to get the
"MODE" - for each column-wise...
2018 Nov 27
1
Subsetting row in single column matrix drops names in resulting vector
...1, ]
> # 1
>
> It returns *unnamed* vector `1` where I would expect named vector. In fact
> it returns named vector when number of columns is > 1.
> Same issue applicable to single row matrix. Is it a bug? looks very
> counterintuitive.
This and related issues are addressed in pqR, in the new
release of 2018-11-18. (See pqR-project.org, and my blog
post at radfordneal.wordpress.com)
The behaviour of a[1,] is unchanged, for backwards compatibility
reasons. But in pqR one can explicitly mark an argument as
missing using "_". When an array subscript is missing in...
2012 Jul 10
2
Count of elements in coulmns of a matrix
Could you please tell me what is the function or method to get count of
elements in all the columns in a matrix ?
for eg :-
ABC XYZ PQR
------ ----- ------
2 3 4
4 5
5 4 3
2
Result will be like
ABC XYZ PQR
------ ----- ------
2 4 3
Could you please help me ?
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2012 Jul 13
3
Column create and Update using function
Hi,
here i have a Max and Min values
Min <-3
Max <-6
and also a matrix like this,
ABC XYZ PQR
------ ------- -------
2 4 3
5 4 8
7 1 3
In this i need to check each particular column values are between Max and
Min value.
If the coulmn value not coming between Max and Min, then i need to...
2015 Jul 14
3
Two bugs showing up mostly on SPARC systems
In testing pqR on Solaris SPARC systems, I have found two bugs that
are also present in recent R Core versions. You can see the bugs and
fixes at the following URLs:
https://github.com/radfordneal/pqR/commit/739a4960a4d8f3a3b20cfc311518369576689f37
https://github.com/radfordneal/pqR/commit/339b7286c7b43dcc...
2014 Sep 07
0
New flag bit for serialized used by pqR
I will shortly be releasing a new version of pqR (you can get a test
version from pqR-project.org now - scroll to the bottom of the page).
One new feature in this version requires adding a bit to the flags
written out when data is serialized. I thought I'd let you know about
this so as to avoid any possible conflicts.
The new feature is tha...
2012 May 25
4
Hash Table - Select and Change Data iniside Matrix
Hi,
Here i have been a matrix like this,
*NAME AGE PALCE TRUE/FALSE*
ABC 20 INDIA
XYZ 30 FRANCE
PQR 40 USA
MNO 30 KENIYA
DEF 25 AUSTRALIA
Here,* TRUE/FALSE* Column containing empty values.
So my requirement what is , need to change all the *TRUE/FALSE *column value
into "*TRUE*" where *AGE = 30*.
Note :- i *dont want* to use* any loop *and d...
2019 Feb 03
1
Inefficiency in df$col
While doing some performance testing with the new version of pqR (see
pqR-project.org), I've encountered an extreme, and quite unnecessary,
inefficiency in the current R Core implementation of R, which I think
you might want to correct.
The inefficiency is in access to columns of a data frame, as in
expressions such as df$col[i], which I think are very comm...
2017 Mar 07
0
length(unclass(x)) without unclass(x)?
> Henrik Bengtsson:
>
> I'm looking for a way to get the length of an object 'x' as given by
> base data type without dispatching on class.
The performance improvement you're looking for is implemented in the
latest version of pqR (pqR-2016-10-24, see pqR-project.org), along
with corresponding improvements in several other circumstances where
unclass(x) does not create a copy of x.
Here are some examples (starting with yours), using pqR's Rprofmemt
function to get convenient traces of memory allocations:
> Rprofme...