Displaying 10 results from an estimated 10 matches for "meana".
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2012 Mar 07
5
Sampling problems
Hi,
I need to sample randomly my dataset for 1000 times. The sample need to be
the 80%. I know how to do that, my problem is that not only I need the 80%,
but I also need the corresponding 20% each time. Is there any way to do
that?
Alternatively, I was thinking to something like setdiff () function to
compare my 80% sample to the original dataset and obtain the corresponding
20%, unfortunately
2011 Oct 11
2
matrix multiplication
Dear all,
Sorry to bother you with such a stupid question, but I just cannot find the
solution to my problem.
I'd like to use matrix multiplication for meanA and factorial 3.
I use the command meanA%*%factorial 3.
But everything I get is: Error in factorial3 %*% A : non-conformable
arguments
I know that the number of the columns of the first vector has to be the same
number of rows of the
second vector to be able to use matrix multiplication, but th...
2017 Jul 13
2
about plotting a special case
...1090 <-
quantile(DF1$B, probs=c()), rather than DF1$A? Also, how to add a legend
for both points DF1 and DF2?
On Wed, Jul 12, 2017 at 8:25 PM, Jim Lemon <drjimlemon at gmail.com> wrote:
> Hi lily,
> Here is the first plot:
>
> plot(DF1$A,DF1$B,pch=19,col="red")
> meanA<-mean(DF1$A)
> meanB<-mean(DF1$B)
> points(meanA,meanB,pch=18,col="red")
> q1090<-quantile(DF1$B,probs=c(0.1,0.9))
> library(plotrix)
> dispersion(meanA,meanB,q1090[2],q1090[1],
> intervals=FALSE,col="red")
>
> The same code will work for a seco...
2017 Jul 13
0
about plotting a special case
...47 25 53
>> 70 21 52
>> 61 23 50
>> 40 19 51
>> 58 18 57
>> 38 24 58
>> 37 27 53",header=TRUE)
>> plot(DF1$A,DF1$B,xlim=range(c(DF1$A,DF2$A)),
>> ylim=range(c(DF1$B,DF2$B)),pch=19,col="red")
>> meanA<-mean(DF1$A)
>> meanB<-mean(DF1$B)
>> points(meanA,meanB,pch=18,col="red")
>> q1090<-quantile(DF1$B,probs=c(0.1,0.9))
>> plotCI(meanA,meanB,ui=q1090[2],li=q1090[1],err="x",
>> add=TRUE,col="red")
>> points(DF2$A,DF2$B,pch=...
2017 Jul 13
0
about plotting a special case
Hi lily,
Here is the first plot:
plot(DF1$A,DF1$B,pch=19,col="red")
meanA<-mean(DF1$A)
meanB<-mean(DF1$B)
points(meanA,meanB,pch=18,col="red")
q1090<-quantile(DF1$B,probs=c(0.1,0.9))
library(plotrix)
dispersion(meanA,meanB,q1090[2],q1090[1],
intervals=FALSE,col="red")
The same code will work for a second data frame, except that you would
us...
2017 Jul 13
2
about plotting a special case
Hi R users,
I have a question about plotting. There is the dataframe below, while each
row represents a record. If I want to plot on a A-B plot, i.e., x-axis
represents A, while y-axis represents B values. However, I want to plot the
mean value from records 1-10 as one point, while the 10th and 90th
percentiles represent the error bars, such as one point in the attached
example. I don't know
2012 Feb 16
1
how to get r-squared for a predefined curve or function with "other" data points
...b R2
1 Mean 3 1.6417389 -3.1282673 NA
2 SE . 0.1279981 0.1937197 NA
---
by averaging parameters a and b of the curve, i create a "mean curve" that
is added to the plot (red curve in the attached image).
http://r.789695.n4.nabble.com/file/n4394609/conductivity-curve.gif
---
meana <- average[1,"a"]
meanb <- average[1,"b"]
curve(100/(1+exp(meana*(x-meanb))), col=2, lwd=2, add = TRUE)
---
and now here's my problem:
i'd like to calculate R squared for all points on that mean curve.
since i have to average the curve parameters, i loose the cur...
2010 Apr 05
3
bootstrap confidence intervals, non iid
hello,
i need to calculate ci's for each of 4 groups within a dataset, to be able
to infere about differences in the variable "similarity". the problem is
that data within groups is dependent, as assigned by the blocking-factor
"site". my guess was to use a block bootstrap but samples within in these
blocks / sites are not of same length. i was not able to find a method to
2004 Dec 21
1
Dialplan help - Can dial any user but not thePSTN
...text
include => extensions
exten => _9.,1,Dial(Zap/1/${EXTEN:1})
zapata.conf
===========
[channels]
; TDM40B card
signalling=fxo_ks
context=internal
channel => 1-4
iax.conf
========
[1000]
type=friend
context=internal
disallow=all
allow=gsm
host=dynamic
username=1000
secret=1000
so this meanas the four extensions plugged in to the TDM40B's all will
fall into
the "internal" extension, as does the IAX user "1000". So if you have
additional
office staff at extensions "5001", "5002" and "5003" connected via SIP,
in
sip.conf you'd...
2006 Oct 18
6
new R-user needs help
Dear all,
I have a dataset
Exp name id x1 x2 x3 x4 x5
1 a 1 23 24 23 22 30
1 b 2 25 26 27 23 24
1 c 3 32 19 23 25 28
2 a 4 28 32 24 26 27
2 b 5 23 24 25 26 28
2 c 6 23 31 30 38 23
3 a 7 24 25 31 27 29
3 b 8 28 25 26 32 28
3 c 9 21 31 28 23 29
where each name a,b and c is repeated three times.
Now I want to calculate the the averages of