Displaying 20 results from an estimated 70 matches for "2.99".
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0.99
2009 Sep 04
1
DOE in R?
Hello!
This is not a topic I am well versed in but required to become well versed
in...I welcome any assistance!
Using R, I want to create an optimal design for an experiment. I'll be
analyzing the results with logistic regression or some generalized linear
model. I am thinking that the algdesign package can help (but no idea where
to start?).
I'm presenting an example here that I have
2009 Jan 11
1
Boxplot from matrices
Hii,
I will create boxplots from matrices. I have the following data sets:
5.0 1.78 2.99 2.019 0
10.0 1.79 3.00 1.744 0
15.0 1.78 2.98 1.936 0
20.0 1.78 2.99 1.975 0
25.0 1.73 2.91 3.591 0
30.0 1.79 3.00 1.966 0
35.0 1.79 3.00 2.451 0
40.0 1.79 3.00
2012 Mar 26
4
reading header in txt file and making histogram
Dear all
I am a BEGINNER and have R on my Mac. I saved my excel file as .txt file, I
have just one column with first row as the column name. My file when read by
R looks like this. After reading the table I try to make a histogram by
hist(dbh), it says object dbh not found. What am I doing wrong? thanks
dbh
1 11.53
2 16.05
3 7.36
4 16.05
5 8.66
6 12.74
7 22.93
8 7.55
9
2006 Dec 11
1
behavior of ewma function
I have the ewma function as shown below. I think I copied it from an
oldSplus help page on filter and
then modified it with a lot of help from Achim.
ewma<-function(x,lambda = 1, init = x[1]) {
rval<-filter(lambda*coredata(x),filter=(1-lambda),method="recursive",ini
t=init)
rval<-zoo(coredata(rval),index(x))
rval
}
It sort of works but , if there are NA values in the input
2023 Aug 19
1
Determining Starting Values for Model Parameters in Nonlinear Regression
Thank you so much Dr. Nash, I truly appreciate your kind and valuable
contribution.
Cheers,
Paul
El El s?b, 19 de ago. de 2023 a la(s) 3:35 p. m., J C Nash <
profjcnash at gmail.com> escribi?:
> Why bother. nlsr can find a solution from very crude start.
>
> Mixture <- c(17, 14, 5, 1, 11, 2, 16, 7, 19, 23, 20, 6, 13, 21, 3, 18, 15,
> 26, 8, 22)
> x1 <- c(69.98, 72.5,
2009 Dec 28
2
Modified R Code
Dear R helpers,
I have following input files. (Actually they are more than 10 rates but here i am considering only 2 rates to write my problem)
rate1.csv
min1 max1 min2 max2 min3 max3
1.05 1.30 1.30 1.65 1.65 1.99
rate2.csv
min1 max1 min2 max2 min3
2023 Aug 19
1
Determining Starting Values for Model Parameters in Nonlinear Regression
Dear friends,
Hope you are all doing well and having a great weekend. I have data that
was collected on specific gravity and spectrophotometer analysis for 26
mixtures of NG (nitroglycerine), TA (triacetin), and 2 NDPA (2 -
nitrodiphenylamine).
In the dataset, x1 = %NG, x2 = %TA, and x3 = %2 NDPA.
The response variable is the specific gravity, and the rest of the
variables are the predictors.
2023 Aug 20
1
Determining Starting Values for Model Parameters in Nonlinear Regression
The cautions people have given about starting values are worth heeding. That nlxb() does well in many cases is useful,
but not foolproof. And John Fox has shown that the problem can be tackled very simply too.
Best, JN
On 2023-08-19 18:42, Paul Bernal wrote:
> Thank you so much Dr. Nash, I truly appreciate your kind and valuable contribution.
>
> Cheers,
> Paul
>
> El El
2011 Jan 23
2
Problem with combined two data frame.
Dear All.
I have some problem with combined two data frame.
....
I have first data frame ..
GPAX THAI MATH SCINCE SOCIAL HEALT ART CAREER LANGUAGE
1227 2.99 3.32 2.50 2.64 3.05 3.60 3.72 3.57 2.62
1704 2.81 2.56 2.48 2.86 3.22 3.19 3.55 3.20 2.51
617 2.18 1.90 1.97 2.06 2.38 3.50 3.54 2.33 1.70
876 2.82 3.14 2.73 2.46 2.71 3.11 3.04 3.24 2.90
2018 Apr 04
2
Plot data in sequence
Hi r-users,
I would like to draw line plots. However, the plot starts from 11121 data
and plot data ENTRY last in the plot.
Here is the code and data.
datn <- read.table(header=TRUE, text='
LEVEL STATUS CGPA
DIPLOMA ENTRY 3.32
DIPLOMA 11121 2.91
DIPLOMA 11122 2.90
DIPLOMA 12131 2.89
DIPLOMA 12132 2.89
DIPLOMA 13141 2.93
DIPLOMA 13142 2.96
DIPLOMA 14151 2.76
DIPLOMA 14152 2.73
STPM
2004 Jun 16
1
VOIPTalk silver service
There was some discussion on this list recently about the voiptalk silver
service. I've just had an e-mail from them saying that the price has been
reduced to 2.99 per month. However, they still only provide an 0870 number
whereas pipecall provide a local call rate 0845 number in the fee.
Chris
2017 Jul 22
4
[RFC] Add IR level interprocedural outliner for code size.
Hi Andrey,
Questions and feedback are very much welcome.
- The explanation as to why the improvements can vary between the IR and
MIR outliner mainly boil down to the level of abstraction that each are
working at. The MIR level has very accurate heuristics and is effectively
the last post ISel target independent code gen pass. The IR outliner on the
other hand has more estimation in the cost
2007 Mar 05
2
File descriptor leak in 1.0rc2[45]?
I upgraded (NetBSD 2.99 i386) from 1.0rc7 to 1.0rc24 and then tried rc25,
and in both cases need to restart Dovecot every day or so (low volume server).
It seems to run out of file descriptors. I have now raised the file descriptor
limit to 1024, but that is not a long-term solution...
...
Mar 5 11:41:38 arioch dovecot: pipe() failed: Too many open files
Mar 5 11:42:38 arioch
2013 Jul 27
1
GeForce 8800GT fan control
I have a GeForce 8800GT that I am trying to lower the fan speed on.
I can change the fan RPM from high to not-as-high but I want more control over it.
It is too loud and it was quieter with the blob.
Maybe the temps are too high to make it quieter.
# echo 1 >/sys/devices/pci0000:00/0000:00:02.0/0000:01:00.0/i2c-6/6-002e/pwm1_enable
# sensors
fam15h_power-pci-00c4
Adapter: PCI adapter
power1:
2002 Aug 02
1
Means of Monte Carlo simulated lists
Hello,
I am doing simulations, and I generate a list at each iteration (with
three component matrices in the example below), saving the results in
a list. For example, after two iterations, I have something like
> str(sim.theta)
List of 2
$ :List of 3
..$ : num [1:6, 1:4] -3.67 -1.07 -2.99 -18.38 -3.26 ...
..$ : num [1:6, 1:6] -7.56 -3.14 -4.99 1.03 2.79 ...
..$ : num [1:6, 1:4]
2010 Jan 04
1
Assistance with boot() Package
Good Evening R Community:
I believe I understand the basics of using the boot() bootstrap resampling function in the boot() package. I have not had any trouble creating a boot.object to which I apply the boot.ci() function to calculate one or all of the available confidence intervals.
What I am not sure about is if this set of functions can generate more than one confidence interval of one or
2011 Jun 25
2
cluster() or frailty() in coxph
Dear List,
Can anyone please explain the difference between cluster() and
frailty() in a coxph? I am a bit puzzled about it. Would appreciate
any useful reference or direction.
cheers,
Ehsan
> marginal.model <- coxph(Surv(time, status) ~ rx + cluster(litter), rats)
> frailty.model <- coxph(Surv(time, status) ~ rx + frailty(litter), rats)
> marginal.model
Call:
coxph(formula =
2018 Apr 04
0
Plot data in sequence
Hi,
Thanks for the reproducible example.
Looking at
str(datn)
would give you a clue.
STATUS is a factor because it contains character values. Factor levels
by default are alphabetical with numbers first, but you can change
those.
> str(datn)
'data.frame': 36 obs. of 3 variables:
$ LEVEL : Factor w/ 4 levels "DIPLOMA","MATRIC",..: 1 1 1 1 1 1 1 1 1 4 ...
$
2010 Jun 09
1
equivalent of stata command in R
Dear all,
I need to use R for one estimation, and i have readily available stata command, but i need also the R version of the same command.
the estimation in stata is as following:
1. Compute mean values of relevant variables
. sum inno lnE lnM
Variable | Obs Mean Std. Dev. Min Max
-------------+--------------------------------------------------------
2010 Feb 09
1
Superimpose ksmooth() onto barplot
I'd like to superimpose a ksmooth() onto a barplot().
My data is:
> d
2009-06-20 2009-06-21 2009-06-22 2009-06-23 2009-06-24
2009-06-25 2009-06-26 2009-06-27 2009-06-28 2009-06-29 2009-06-30
2009-07-01 2009-07-02
Same Breed (B) 12.64 21.08 13.52 12.51
13.71 9.91 14.24 7.18 11.81 5.92
12.04 17.96