Displaying 20 results from an estimated 9000 matches similar to: "Vectorizing closest match"
1999 Oct 08
1
floor(NaN) problem fixed in massdist.c (PR#291)
Full_Name: Naoki Takebayashi
Version: 0.65.0+R-release.diff (Oct 6, 1999)
OS: Linux/Alpha
Submission from: (NULL) (129.79.224.171)
This will fix the "problem 2 (crash in fft)" in Bug ID #277
On Linux/Alpha, make check failed because R could not handle the following
example in base-Ex.R
##___ Examples ___:
# The Old Faithful geyser data
data(faithful)
:
:
## Missing values:
x <-
2002 Mar 28
0
Summary: Vectorizing closest match
The original problem I posed was
Let
x = real vector of length n
y = real vector of length n
w = real vector of length m, m typically less than n/2 but can be > n
z = real vector of length m
For w[i], i=1,,,m, find the value of x that is closest to w[i]. In the
case of ties, select one (optimally at random or just take the first
match). Let z[i] = value of y corresponding to the
2008 Aug 26
2
String search: Return "closest" match
Hi,
I have to match names where names can be recorded with errors or additions.
Now I am searching for a string search function which returns always the "closest" match. E.g. searching for "Washington" it should return only Washington but not Washington, D.C. But it also could be that the list contains only "Hamburg" but the record I am searching for is
2010 May 01
2
closest match in R to c-like struct?
Hello,
What would be in R the closest match to a c-struct? e.g. data.frame requires all elements to be of the same length ... or is there a way to circumvent this?
TIA,
Best regards,
Giovanni
2006 Aug 12
9
Finding the closest match?
I am trying to do a search for a crazy problem. Anyways, the search can
only contain one word and the database it''s searching contains one word
per row. Basically if someone tries to search for a word I want to find
the closest match.
Ex:
If someone types "cat" and "cat" is not in my database, but "bat" is,
how could I select bat?
Also, if someone
2009 Mar 22
4
Selecting closest values
Hi
I have a table with ID (1 to 183) and Location (144 to -22).
My problem is that I want to select the 10 ID's that are closest in Location
to ID 1, ID 2 and so on.
Also, some ID have the same Location. Say, if 11 ID's are closest to ID 100
I want to randomly choose one of the ID's to select 10 ID's total.
Thank you
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2008 Jul 09
4
Find the closest value in a list or matrix
I have a long list of numbers [3.4,5.4,3.67,....], and I basically want to
find the index of the number closest to this number that I have, let's say
5.43. How would I do this without writing a for loop (I have to do this many
times for several lists)? Is there a "lookup" function in R?
Thanks!
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2013 Apr 11
2
Encircle the closest points
Dear R-user,
For the "matplot" of the following data drawn by
>matplot(t, pch=1)
structure(c(2372L, 2494L, 2170L, 2238L, 1918L, 715L, 1573L, 2437L, 2481L, 1881L, 440L, 2165L, 343L, 121L, 597L, 1163L, 1459L, 2093L, 1454L, 1761L, 1872L, 174L, 2040L, 552L, 1403L, 6381L, 1649L, 4136L, 4415L, 10650L, 12111L, 4397L, 9593L, 7040L, 3888L, 8340L, 11475L, 11413L, 3985L, 1077L, 7723L, 1392L,
2017 Jun 04
3
CentOS 7 install: closest mirror not supported?
Hi,
Do CentOS 7 installs not automatically use a closest mirror for
installing like Fedora does, or is that due to the way I'm starting
the install (virt-install)?
Background:
I'm trying to find the best way to do installs using basic local media
(network install, but *without* the need to download the squashfs.img
for every install) but without a full local mirror. On Fedora (25),
it
2010 Jan 17
3
enty-wise closest element
Dear R-users,
i have a simple problem maybe, but i don't see the solution. i want to
find the entry-wise closest element of an vector compared with another.
ind1<-c(1,4,10)
ind2<-c(3,5,11)
for (i in length(ind2):1)
{
print(which.min(abs(ind1-ind2[i])))
}
for ind2[3] it should be ind1[3] 10, for ind2[2] it should be ind1[2] 4
and for ind2[1] it should be ind1[1] 1. but with the
2008 Aug 27
3
Closest value
Hello,
I have this command:
x.axis <- seq(from=0.5, to=4.5, length.out=13112)
How can I which of the x.axis components is the closest to a given
value, for example 3.2?
Best,
Dani
--
Daniel Valverde Saub?
Grup de Biologia Molecular de Llevats
Facultat de Veterin?ria de la Universitat Aut?noma de Barcelona
Edifici V, Campus UAB
08193 Cerdanyola del Vall?s- SPAIN
Centro de Investigaci?n
2004 Feb 13
3
Re: Re: Find Closest 5 Cases?
Art (and group),
I'm doing this as a form of missing value analysis. Approximately 30% of the cases are missing data for one variable. To impute values for those cases, I'd like to match those cases that are missing the variable to all other cases and then take an average of those to infill.
I realize there are many methods for imputing data. I'm not well versed on any in
2008 Apr 18
3
Closest Fedora to CentOS 4?
Hi, I want to take a SRPM that is available for various versions of Fedora
and rebuild it on a CentOS 4 system.
Which release of Fedora is the closest to CentOS 4? In other words, which
would be the best FC to take the SRPM for?
Cheers
Tony
--
Tony Mountifield
Work: tony at softins.co.uk - http://www.softins.co.uk
Play: tony at mountifield.org - http://tony.mountifield.org
2007 Jan 06
2
can samba figure out the "closest" domain controller in ADS mode?
I'v got working Samba ADS servers, but "net ads info" shows most of them
are associated with Win2K3 domain controllers that are in different
sites than the ones the Samba servers are in (we have a large WAN with
DCs in every site). I'm not configuring "password server" as I want
Samba to be more fault tolerant than pointing it at one DC - when there
are many to choose
2004 Feb 13
3
Calculate Closest 5 Cases?
I've only begun investigating R as a substitute for SPSS.
I have a need to identify for each CASE the closest (or most similar) 5
other CASES (not including itself as it is automatically the closest). I
have a fairly large matrix (50000 cases by 50 vars). In SPSS, I can use Correlate > Distances to generate a matrix of similarity, but only on a small sample. The entire matrix can not
2009 Mar 21
1
Forestplot () box size question
Hi All,
I have been able to modify the x-axis to start at zero by adding xlow
and xhigh parameters; that was pretty simple. I have been unable to
find the location of the code that would turn off the information
weighting of the box size (I have smaller randomized trials getting
less weight than a much larger non-randomized trial). The function
is forestplot() from rmeta.
Thanks for any
2013 Jun 18
2
find closest value in a vector based on another vector values
Dear All,
would you please provide your thoughts on the following:
let us say I have:
a <-c(1,5,8,15,32,69)
b <-c(8.5,33)
and I would like to extract from "a" the two values that are closest to the values in "b", where the length of this vectors may change but b will allways be shorter than "a". So at the end based on this example I should have the result
2009 Oct 10
2
Matching Dates Closest without going over
Hi,
I have 2 date vectors d1 and d2.
d1 <- structure(c(14526, 14495, 14464, 14433, 14402, 14371, 14340, 14309,
14278, 14247, 14216, 14185), class = "Date")
d2 <- structure(c(14526, 14509, 14488, 14466, 14453, 14441, 14396, 14388,
14343, 14333, 14310, 14281), class = "Date")
I would like to create another dataframe with columns d1 and d2, where d1 is
the original d1
2011 Mar 30
1
[LLVMdev] Bignums
Hello all!
I'm working on a library with bignum support, and I wanted to try LLVM
as an apparently simpler and more portable system to my current design
(a Haskell script which spits out mixed C and assembly). Porting the
script to use the LLVM bindings instead of the current hack was pretty
easy. But I have a few remaining questions:
(1) Are bignums exposed to any higher-level
2013 Sep 25
1
Best and worst values for each date
Hi,
May be you can try this:
obj_name<- load("arun.RData")
Pred1<- get(obj_name[1])
Actual1<- get(obj_name[2])
library(reshape2)
dat<-cbind(melt(Pred1,id.vars="S1"),value2=melt(Actual1,id.vars="S1")[,3])? # to reshape to long form
colnames(dat)[3:4]<- c("Predict","Actual")
dat$variable<- as.character(dat$variable) #not that