Displaying 20 results from an estimated 56 matches for "maggie".
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maggio
2003 Jul 08
3
Characters and Numeric Values in One Matrix
...ective columns.
Unfortunately, I am just starting using R and I could not help him.
Is there an easy and straightforward way to do this in R?
Maybe a little example facilitates understanding our problem:
names <- c("Marge", "Lisa", "Homer", "Bart", "Maggie")
ages <- c(38,10,41,8,1)
Now he wants to have 2 columns in a matrix which should look like this:
"Marge" 38
"Lisa" 10
"Homer" 41
"Bart" 8
"Maggie" 1
I thought about using either:
family1 <- matrix(c(names, ages),...
2005 Jul 07
1
look for help on nlm in R
...FALSE,N.measure=object,h=20)
Error in f(x, ...) : only 0's may mix with negative subscripts
Basically I know the three parameter values should all be positive numbers. So, how to select appropriate starting parameter values to prevent this kind of error message?
Thanks much
Sincerely,
Maggie Zhu
This communication is for use by the intended recipient and ...{{dropped}}
2009 Mar 26
1
Extreme AIC in glm(), perfect separation, svm() tuning
...lt;- sum(err.indicator)/length(train.y)
error
I'm really sorry for such a long mail! And for my limited knowledge too!
Would you please advise if there is any better way of tuning svm()? or what
should i do to obtain a reasonable co-efficients for case (2)? Thank you so
much!!
Best Regards,
Maggie
-----------------------------------
Haitian Wang
PhD Student in Statistics
ISOM Department, HKUST, Hong Kong
On Fri, Mar 20, 2009 at 4:44 PM, Gavin Simpson <gavin.simpson@ucl.ac.uk>wrote:
> On Fri, 2009-03-20 at 12:39 +1100, Gad Abraham wrote:
> > Maggie Wang wrote:
> >...
2009 Mar 18
3
Extreme AIC or BIC values in glm(), logistic regression
...Null deviance: 120.32 on 86 degrees of freedom
Residual deviance: 1009.22 on 55 degrees of freedom
AIC: 1073.2
Number of Fisher Scoring iterations: 25
Could anyone suggest what does this mean? How can I perform a reliable
logistic regression?
Thank you so much for the help!
Best Regards,
Maggie
[[alternative HTML version deleted]]
2013 May 11
3
boxplot with grouped variables
my dataset looked like this in the beginning:
>Daten
V1 V2 V3
1 Dosis Gewicht Geschlecht
2 0 6.62 m
3 0 6.65 m
4 0 5.78 m
5 0 5.63 m
I need box plots for V2 with all combination of V1 and V3, so I deleted the
first row, and tried this:
boxplot(Daten$V2[Daten$V3=="m"])
but it does not work and I
2007 Dec 27
1
(package e1071) SVM tune for best parameters: why they are different everytime i run?
...4.00
run A again:
cost gamma
1 4
again:
cost gamma
0.25 4.00
The result is so unstable, if it varies so much, why do we need to tune? Do
you know if this behavior is normal? Can we trust the best.parameters for
prediction?
Thank you so much to help out!!
Best Regards,
Maggie
[[alternative HTML version deleted]]
2011 Apr 27
1
Problem about step and stepAIC
Hello,
I am now running a multiple linear regression program, but I do not know the
difference between the command step and stepAIC.
Thanks.
Maggie
[[alternative HTML version deleted]]
2011 Oct 24
1
Problem about plotting the correlation coefficients
...the correlation coefficients of 45 elements
using the commend "plot". Error message "Error in plot.new() : figure
margins too large" appeared. I think it may because there are too many
elements. But I really need to find their correlation coefficients. What can
I do? Thank you.
Maggie
[[alternative HTML version deleted]]
2004 Apr 14
1
question about /nmath/standalone
...this case I receive this message:
> /usr/bin/ld: cannot find -lRmath
> collect2: ld returned 1 exit status "
what should I do? or I do something before I use "gcc -lRmath test.c" to
compile c code test.c?
I will appreciate if you can help me resolve this problem.
yours,
Maggie Wang
2005 Mar 09
2
How to use a R package with C code
Hello, everybody,
I created a R package which includes C code. But I load this package, and carry
out the R function in it. It shows C function is not in load table as follows.
Would you tell me what is the problem? Where do I make mistake?
Maggie
[Previously saved workspace restored]
> library(var)
Attaching package 'var':
The following object(s) are masked _by_ .GlobalEnv :
b
> wxt0124()
Error in .C("wxt1221") : C function name not in load table
2009 Sep 23
2
Stretch the x-axis for better alignment comparison
I have the following code that aligns the two graphs.
Problem is that in .pdf it gives me it x-axis (0-100) is broken down
into 0-20, 20-40..and so on.
I wonder if there is for it to display the x-axis (and y-axis) in more
detail than that.
I'd appreciate your input --
pdf(file="VECTOR & ICA ALIGNMENT.pdf", height=5, width=5)
2011 May 16
2
Howto set the option script=no for a tap device in the xml file
Hello,
I am trying to run a virtual machine with qemu-kvm and libvirt as a
user. In order to start the virtual machine I setup a tap device
manually, add it to the bridge and activate it via ifconfig. But I
cannot tell libvirt to not try to add the definded tap device to the
bridge by itself. It always fails telling me it cannot add tap0 to br0.
Thats the xml snippet for defining the network:
2006 Mar 06
11
Capistrano setup fails
I can''t get past the setup step in Capistrano. I know the paths are
correct and I''m using zsh locally (bash on remote), so the shell
shouldn''t be a problem. It never asks for the SSH password, even. Any
help you could give would be greatly appreciated. Thanks.
Kenneth
--
=> the blog from beyond <=
=> www.eyeheartzombies.com <=
2009 Mar 17
4
Plastic Water Bottles
The plastics industry says polycarbonate bottles are safe.
http://www.bisphenol-a.org/about/faq.html#g
I'm sure Maggie and here friends would say ALL plastic bottles are
very dangerous.
This lady seems to be at a reasonable middle ground.
http://trusted.md/blog/vreni_gurd/2007/03/29/plastic_water_bottles
Polycarbonate plastics the kind of bottle you bought contains BPA.
"In 2006 Europe banned all products ma...
2011 Aug 14
2
Central limit theorem
my data looks like this:
PM10 Ref UZ JZ WT RH FT WR
1 10.973195 4.338874 nein Winter Dienstag ja nein West
2 6.381684 2.250446 nein Sommer Sonntag nein ja Süd
3 62.586512 66.304869 ja Sommer Sonntag nein nein Ost
4 5.590101 8.526152 ja Sommer Donnerstag nein nein Nord
5 30.925054 16.073091 nein Winter Sonntag nein nein Ost
6
2015 Sep 01
1
FW: Request for ew device<0x2B2D/0xFFFF> listed into NUT
Resend the mail.
???: Zhan, Cindy (???)
????: 2015?8?28? 16:19
???: nut-upsdev at lists.alioth.debian.org<mailto:nut-upsdev at lists.alioth.debian.org>
??: Xie, Maggie(???)
??: Request for ew device<0x2B2D/0xFFFF> listed into NUT
Dear NUT Developers:
We really appreciate for your great job and accomplishment in NUT. It?s interesting and fabulous.
It would be great if our new device can be listed in NUT. Here?s the basic information for it:...
2013 Nov 23
1
how to melt variable to one variable
I want to make a stacked bar plot with one bar for two variables from my
data "chir", the two variables have about 100 values like no, yes and na. I
want to show how many no, yes and na they both have together with the
stacked bar. I tried to melt these to variables first like this:
melt1=melt(data_chir, measure.vars=c("N1_re", "N2_re"), var="zpd")
but it
2007 Oct 17
1
How to save association rules generated by arules package
Hi,
I have been able to generate association rules for Market Basket Analysis
using the following codes:
****************************************************************************
*******************************************
library("arules")
rules <- read.csv("write1.csv",na.strings=c(".", "NA", "", "?"),header=TRUE)
2016 Aug 12
2
A nicer HTML index page for llvm-cov
I've been working on adding code coverage support to my ELLCC project
(http://ellcc.org) and I thought it would be nice to fun the index page
of the HTML output of llvm-cov into something a little prettier and more
useful.
The initial result is here: http://ellcc.org/coverage/
If there is any interest, I'll submit the llvm-cov changes.
-Rich
2012 Jan 30
1
Linear Mixed Model set-up
Hello,
I have some data covering contaminant concentrations in fish over a time
period of ~35 years. Each year, multiple samples of fish were taken (with
varying sample sizes each year). Ultimately, I want an estimation of the
variance between years, and the variance within years + random effects. I
used a linear mixed model to estimate these variances, but after reading a
number of different