Displaying 20 results from an estimated 189 matches for "stu".
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2007 Dec 19
1
Function reference
...to be able to pass different fitness functions to this procedure. I am trying to find a good way to do this. I was thinking of passing in the name of the function and then using eval. However, I haven't gotten this to work the way I'd like it to. Consider the following example:
> stu <- function(x) {return( 1 + (2*x*x) - (3*x) )}> (x=0:3)[1] 0 1 2 3> stu(x)[1] 1 0 3 10> (fun="stu")[1] "stu"> eval( parse( text = paste( fun, "(", x, ")", sep = "" ) ) )[1] 10>
Notice that the function I defined called "...
2005 Jul 01
4
Lines for plot (Sweave)
Dear List:
I am generating a series of plots iteratively using Sweave. In short, a
dataframe is subsetted row by row and variable graphics are created
conditional on the data in each row. In this particular case, this code
ends up generating 17,000 individual plots.
In some cases, all student data (this is working with student
achievement data) are available and my code below works very well in the
sense that a line connects all points. However, in some cases there are
missing data and I need to modify my code so that lines are connected
through all points even when data are missing...
2010 Mar 10
1
Strange result in survey package: svyvar
...2006), and
when I try to calculate the variances for several variables, I get negative
numbers. I thought it may be my data, so I ran the example on the help
page:
data(api)
## one-stage cluster sample
dclus1<-svydesign(id=~dnum, weights=~pw, data=apiclus1, fpc=~fpc)
svyvar(~api00+enroll+api.stu+api99, dclus1)
variance SE
api00 11182.8 1386.4
api00 11516.3 1412.9
api.stu -4547.1 3164.9
api99 12735.2 1450.1
If I look at the full matrix for the variances (and covariances):
test<-svyvar(~api00+enroll+api.stu+api99, dclus1)
print(test, covariance=T)
v...
2013 Jan 23
1
Evaluating the significance of the random effects in GLMM
Hi all!
I am working with GLMM using the binomial family
I use the following codes
I dropped no significant terms, refitting the model and comparing the
changes with likelihood:
G.1<-lmer(data$Ymat~stu+spi+stu*sp1+(1|ber),data=data,family="binomial")
G.1b<-lmer(data$Ymat~stu+spi+(1|ber),data=data,family="binomial")
anova (G.1,G.2)
But, when I want to evaluate the significance of random effect (1|ber)
I cannot use a likelihood-ratio test, probably because the link
functio...
2004 Jan 27
0
Undelivered mail: hi
...ains an infected object.
Sender = samba@lists.samba.org (may be forged)
Recipients = marketing@microstar.ru
Subject = hi
Message-ID = [unknown-id]
Antivirus filter report:
--- Dr.Web report ---
Following virus(es) has been found:
infected with Win32.HLLM.MyDoom.32768
Dr.Web detailed report:
ns.stu.neva.ru:1332/[text/plain] - Ok
ns.stu.neva.ru:1332/message.zip infected with Win32.HLLM.MyDoom.32768
Dr.Web scanning statistic:
Infected : 1
--- Dr.Web report ---
The original message was stored in archive record named:
drweb.quarantine.T0fO52
In order to receive the original message, please s...
2009 Jun 16
3
The most straightfoward way to write a function that sums over the rows of a matrix
...sum( (y - (par[1] * (x1 + 1) * x2^(-par[2]) * x3^par[3])^2 )
}
y, x1, x2, x3 are all vectors.
I am a bit new to R and I have not been able to find a good description of
how to iterate over rows in a data.frame.
What is a straightforward way to do this?
What am I missing?
Thanks
Stu
[[alternative HTML version deleted]]
2009 Jun 16
2
Trouble with optim on a specific problem
..."CG")
Error in optim(c(0.66, 0.999, 0.064), pe, NULL, method = "CG") :
objective function in optim evaluates to length 6 not 1
I don't know what the error message should mean to me.
Particulars for the problem are listed below.
Thanks in advance for any help!!
Stu
> y <-
c(0.111111111111111,0.0921052631578947,0.0564516129032258,0.0608108108108108
,0.0128205128205128,0.0136078431372549)
> x3 <- c(3600,169200,185400,255600,271800,342000)
> x2 <- c(1,3,4,5,6,7)
> x1 <-
c(0,0.978723404255319,0.087378640776699,0.549295774647887,0...
2012 Sep 26
1
Write table with data in other .csv template
...d.J..Yoon = c(0L, 0L, 0L,
0L, 0L, 0L), Eugene.Koontz = c(0L, 0L, 0L, 0L, 0L,
0L), Jakob.Homan = c(0L, 0L, 0L, 0L, 0L, 0L), Kelvin.Kakugawa =
c(0L, 0L, 0L, 0L, 0L, 0L), Kirk.True = c(0L, 0L, 0L, 0L, 0L, 0L
), Lars.George = c(0L, 0L, 1L, 0L, 0L, 0L), Soren.Macbeth = c(0L, 0L,
1L, 0L, 0L, 0L), Stu.Hood = c(0L, 0L, 0L, 0L, 0L, 0L),
Tibor.Kiss = c(0L, 0L, 0L, 0L, 0L, 0L), Tom.White = c(0L, 0L, 1L, 0L,
0L, 0L), Unassigned = c(0L, 0L, 0L, 0L, 0L, 0L
)), .Names = c("Adrian.Cole", "Alison.Wong",
"Andrei.Savu", "Bruno.Dumon", "Edward.J..Yoon"...
2011 Jun 15
12
Create or Update Model with JSON?
Having issue updating a model with JSON. I simply *"model.attributes=json"*,
which does update the attributes but not the id, or uuid in this case. I
want to save or create the record (if it''s id exists). Seems like this would
be documented, but I''m not finding anything. I''m using a MOM to pass JSON
between apps. Thanks.
--
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2013 Oct 11
1
One user getting: "Primary group is 0 and contains 0 supplementary groups" on standalone server
...Linux groups for privileges. (I'm assuming Samba
can still be used this way.)
My question is: How does Samba calculate these group memberships?
I'll look through the source code and see what I can see, but I am no
programming wizard, so I doubt I'll find what I need there.
Thanks!
Stu...
--
Stuart Reedy Working hard for a great university!
stu at coe.uky.edu
859 257-7966 http://www.coe.uky.edu/~stu/
2020 May 19
3
FTS-lucene errors : language not available for stemming
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On 19/05/2020 17:18 Stuart Henderson <<a href="mailto:stu@spacehopper.org">stu@spacehopper.org</a>> wrote:
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On 2020/05/19 17:04, Aki Tuomi wrote:
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2004 Apr 05
0
studentized deleted residuals and NA's
Dear R-Help,
I am using the studres function from the MASS package to compute
studentized deleted residuals in a oneway anova. I'm having trouble
interpreting the results in situations where a factor level has only one
observation. Sometimes studres yields an NaN and sometimes it produces a
numeric value for cases where a f...
2020 May 19
3
FTS-lucene errors : language not available for stemming
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On 19/05/2020 16:48 Stuart Henderson <<a href="mailto:stu@spacehopper.org">stu@spacehopper.org</a>> wrote:
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On 2020-05-19, David Gessel <<a href="mailto:gesse...
2018 Aug 27
2
sshd 7.8p1 close connection from VMware Fusion NAT Port Forwarding
On 2018-08-27, Stuart Henderson <stu at spacehopper.org> wrote:
> On 2018-08-27, Zach Cheung <kuroro.zhang at gmail.com> wrote:
>> After upgrading my VMware Fusion (10.1.3) Arch Guest to the latest with
>> OpenSSH upgraded from 7.7p1 to 7.8p1, found that ssh from macOS Sierra
>> (10.1...
2010 Sep 29
2
Script auto-detecting its own path
...put all the related scripts I use in the same folder with a "master" script and then source() them in that "master" script. Problem is, the "master" script must first know where it is (without me having to open it and retype the path every time I move it).
Any ideas?
Stu
ps. I found this on the internet but a) I couldn't understand it, and b) it didn't work:
frame_files <- lapply(sys.frames(), function(x) x$ofile)
frame_files <- Filter(Negate(is.null), frame_files)
PATH <- dirname(frame_files[[length(frame_files)]])
~~~~~~~~~~~~~~~~~~~~~~~~~~~~...
2005 May 30
4
Very simple traffic shaping script for H.323
...care about slowing down other traffic flows. H.323 packets
should be serviced first no matter what.
(2) Any traffic with source or destination public IP Address
"abc.def.ghi.jkl" or private IP Address 192.168.16.4 is to/from from the
videoconference device.
After all the reading and studying, is it really this simple? Does
anyone have ideas on how to test this? How do I watch packets to see
which packets go into what PFIFO band?
#!/bin/sh
VTC1_PRIVATE="192.168.16.4"
VTC1_PUBLIC="abc.def.ghi.jkl"
IPTABLES="/usr/local/sbin/iptables"
$IPTABLES -t m...
2005 Mar 15
4
How to extract x rows to get x pvalues using t.test
Hi all,
My data
genes
[,1] [,2] [,3] [,4]
[1,] 25 72 23 55
[2,] 34 53 41 33
[3,] 26 43 26 44
[4,] 36 64 64 22
[5,] 47 72 67 34
stu<-t.test(genes[,1:2],genes[,3:4])
> stu$p.value
[1] 0.4198002
i get 1 pvalue for the entire col1:col2 Vs col3:col4. I am trying to get 5 p values for the 5 rows i have.
I am trying to avoid a for loop coz my actual data has 56000 rows and its taking more than 4 minutes to
compute.
Thanks i...
2009 Mar 11
3
Matrix Construction; Subdiagonal
...# vector of interest
A = xyz(vec,-1) # creates a 6x6 matrix with vec on the
subdiagonal
where xyz is some function similar to diag, but with differing
arguments.
I can't believe there is not a simple way to do this...
Thanks for your help,
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Stu Field, PhD
Postdoctoral Fellow
Department of Biology
Colorado State University
1878 Campus Delivery
Fort Collins, CO 80523-1878
Office: E208 Anatomy/Zoology
Phone: (970) 491-5744
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[[alternative HTML version deleted]]
2009 May 26
2
Linear Regression with Constraints
...constraints:
0.0 < c2 < 1.0, and
0.0 < c3 < 1.0
y, x1, x2, and x3 are observed data.
I have a total of 6 rows of data in a data set.
Is "optim" in the stats package the right function to use?
Also, I can't quite figure out how to specify the constraints.
Thank you!
-Stu
2009 Jun 16
1
Constrained Optimization, a full example
...i and ci to (hopefully) force par2 and par3 into the range 0.0
<= par2 <= 1.0 and 0.0 <= par3 <= 1.0.
I am not at all sure that ui and ci are defined correctly.
The call to constrOptim returns normally, but without a solution
(apparently).
Any suggestions appreciated.
Thanks
Stu
# data
y <-
c(0.111111111111111,0.0921052631578947,0.0564516129032258,0.0608108108108108
,0.0128205128205128,0.0136078431372549);
x1 <-
c(0,0.978723404255319,0.087378640776699,0.549295774647887,0.0596026490066225
,0.61578947368421);
x2 <- c(1,3,4,5,6,7);
x3 <- c(3600,169200,1854...