Displaying 20 results from an estimated 3091 matches for "runifs".
Did you mean:
runif
2005 Jun 08
6
Random seed problem in MCMC coupling of chains
Hello!
I am performing coupling of chains in MCMC and I need the same value
of seed for two chains. I will show demo of what I want:
R code, which might show my example is:
niter <- 3
nchain <- 2
tmpSeed <- 123
for (i in 1:niter) { # iterations
for (j in 1:nchain) { # chains
set.seed(tmpSeed)
a <- runif(1)
cat("iter:", i, "chain:", j,
2017 Sep 25
1
Random Variable Generation
I am attempting to write a code that will generate a win probability for a hockey team. To do this, I have a code built that will generate a number of random variables between two standard deviations, and then weight them and add them together. However, when I attempt to assign this code to a variable, any time I use the variable, it will always give me the same numbers instead of being random
2016 Oct 28
2
Encontrar la primera columna no NA
Hola a todos, me ha gustado mucho la solución de Carlos, muy eficiente y
muy ingeniosa al utilizar la funcion col() que o no la conocia o no me
acordaba de ella.
La parte mas "lenta" sigue siendo el apply que en el fondo no es mas que un
ciclo for a traves de las filas, asi que inspirado por el metodo de Carlos
pense que podria ser mas rapido si iteramos a traves de las columnas por lo
2005 Oct 05
8
R crashes for large formulas in lm() (PR#8180)
Full_Name: Hallgeir Grinde
Version: 2.1.1
OS: Windows XP
Submission from: (NULL) (144.127.1.1)
While using lm(y~(x*z*c*...*v)^2) R crashes/closes if the numbers of variables
are at least 8.
2010 Dec 06
4
Runif Help: same variable, 3 different parameters
So I am working on an economic model and I need to change the parameters of
the runif statement as time goes on.
Ex.
X <-runif(1:50,0,5)
X <-runif(51:100,100,150)
X <-runif(100:T, 1,2)
Not sure how to go about entering this in to R properly.
--
View this message in context: http://r.789695.n4.nabble.com/Runif-Help-same-variable-3-different-parameters-tp3073893p3073893.html
Sent from
2005 Oct 05
1
Ad: Re: R crashes for large formulas in lm() (PR#8180)
Dette er en melding med flere deler i MIME-format.
--=_alternative 004613C000257091_=
Content-Type: text/plain; charset="US-ASCII"
And some more informastion I forgot.
R does not crash if I write out the formula:
set.seed(123)
x1 <- runif(1000)
x2 <- runif(1000)
x3 <- runif(1000)
x4 <- runif(1000)
x5 <- runif(1000)
x6 <- runif(1000)
x7 <- runif(1000)
x8 <-
2017 Nov 15
3
lapply and runif issue?
Could someone please explain the following? I did check bug reports, but
did not recognize the issue there. I am reluctant to call it a bug, as it
is much more likely my misunderstanding. Ergo my request for clarification:
## As expected:
> lapply(1:3, rnorm, n = 3)
[[1]]
[1] 2.481575 1.998182 1.312786
[[2]]
[1] 2.858383 1.827863 1.699015
[[3]]
[1] 1.821910 2.530091 3.995677
## Unexpected
2017 Nov 15
0
lapply and runif issue?
Hi Bert,
On Tue, Nov 14, 2017 at 8:11 PM, Bert Gunter <bgunter.4567 at gmail.com> wrote:
> Could someone please explain the following? I did check bug reports, but
> did not recognize the issue there. I am reluctant to call it a bug, as it
> is much more likely my misunderstanding. Ergo my request for clarification:
>
> ## As expected:
>
>> lapply(1:3, rnorm, n = 3)
2006 Oct 19
2
Bug in Acrobat Reader 7 (or R?) with translucent text
My setup: R 2.4.0, Windows 2000, Acrobat Reader 7.
When I create a .pdf with translucent colors, the translucency works
correctly for points, but not for text. Below is some R code that
creates a .pdf with this phenomenon.
I was going to report this as a bug in R, but then I tried to view the
pdf with a couple of other viewers and found that at least one of the
viewers correctly displayed the
2008 Jul 28
2
Help with a loop
HI:
I need ideas on how to make this code shorter (maybe with a second loop?).
The code as it is works, but in this case I only have 14 samples, but it
will become insane with more, so I need a way to make it more automatic. The
problem is that the output from ts1, ts2, and so on is a vector with more
than one value, so I do not know how to solve this.
Thanks
Prenewbie
The code is the
2016 Oct 27
4
Encontrar la primera columna no NA
Por último, utilizando la indexación lineal de matriz que propusó luisfo en su momento:
> t <- Sys.time()
> M=as.matrix(dat)
> index <- which(!is.na(M)) - 1
> meses<-colnames(M)
> M2<- data.table(columna=index %/% nrow(M) +1L, jugador=index %% nrow(M) +1L , valor=M[index+1L])
> setkey(M2,jugador,columna)
>
2005 Oct 05
0
Ad: Re: R crashes for large formulas in lm() (PR#8180)
On Wed, 5 Oct 2005 Hallgeir.Grinde at elkem.no wrote:
> And some more informastion I forgot.
> R does not crash if I write out the formula:
>
> set.seed(123)
> x1 <- runif(1000)
> x2 <- runif(1000)
> x3 <- runif(1000)
> x4 <- runif(1000)
> x5 <- runif(1000)
> x6 <- runif(1000)
> x7 <- runif(1000)
> x8 <- runif(1000)
> y <-
2018 Jan 30
2
Simulation based on runif to get mean
Hello everyone,
I have a question regarding simulating based on runif.? Let say I have generated matrix A and B based on runif. Then I find mean for each matrix A and matrix B.? I want this process to be done let say 10 times. Anyone can help me.? Actually I want make the function that I can play around with the number of simulation process that I want. Thanks.
Eg:
a <- matrix(runif(5,1, 10))
2010 Jul 23
2
randomness using runif
I'm working on a problem where I'm introducing random error and have
been using the built in function runif to provide that random error.
However, I realized that I seem to be getting some unexpected behavior
out of the function and was hoping someone could share some insight.
I don't know the runif algorithm at all, but from the behavior I'm
seeing, it seems that whenever I open
2005 Oct 05
0
Ad: Re: Ad: Re: R crashes for large formulas in lm() (PR#8180)
Dette er en melding med flere deler i MIME-format.
--=_alternative 004C4E4A00257091_=
Content-Type: text/plain; charset="US-ASCII"
Yes.
so (x1*x2*x3*x4*x5*x6*x7*x8)^2 = (x1+x2+x3+x4+x5+x6+x7+x8)^8 ?
and there is a difference in
(x1*x2*x3*x4*x5*x6*x7*x8)^2
and
(x1*x2*x3*x4*x5*x6*x7*x8)
althoug the resulting formulas are the same, or?
This fikses my problem, but R still crashes for the
2018 Jan 30
1
Simulation based on runif to get mean
Hello,
Another way would be to use ?replicate and ?colMeans.
set.seed(2511) # Make the results reproducible
fun <- function(n){
f <- function(){
a <- runif(5, 1, 10)
b <- runif(5, 10, 20)
colMeans(cbind(a, b))
}
replicate(n, f())
}
fun(10)
Hope this helps,
Rui Barradas
On 1/30/2018 8:58 AM, Daniel Nordlund wrote:
> On 1/29/2018
2017 Aug 22
4
boot.stepAIC fails with computed formula
I'm trying to use boot.stepAIC for feature selection; I need to be able to specify the name of the dependent variable programmatically, but this appear to fail:
In R-Studio with MS R Open 3.4:
library(bootStepAIC)
#Fake data
n<-200
x1 <- runif(n, -3, 3)
x2 <- runif(n, -3, 3)
x3 <- runif(n, -3, 3)
x4 <- runif(n, -3, 3)
x5 <- runif(n, -3, 3)
x6 <- runif(n, -3, 3)
x7
1997 Nov 24
0
R-alpha: random number generator -- S-plus's
--Multipart_Mon_Nov_24_14:51:09_1997-1
Content-Type: text/plain; charset=US-ASCII
>>>>> "PaulG" == Paul Gilbert <pgilbert@bank-banque-canada.ca> writes:
MM> The code is basically in V&R 1 and 2; V&R2 on p.167. I have it as a
MM> C function that I used to dyn.load into S-plus in order
MM> to prove that S-plus was using it.
2009 Aug 01
3
how do i retain decimal values
Hello,
I am trying to do a spearman correlation. My data has tied values. To
overcome this issue, I am adding some random noise (values) to my original
data. However when I add the random noise to the data, the final matrix does
not show the new values. I guess the reason being that the noise I add is
very small and the full value including the decimals gets truncated to show
only the value
2005 Oct 05
0
Ad: Re: Ad: Re: R crashes for large formulas in lm() (PR#8181)
On Wed, 5 Oct 2005 Hallgeir.Grinde at elkem.no wrote:
> Yes.
> so (x1*x2*x3*x4*x5*x6*x7*x8)^2 = (x1+x2+x3+x4+x5+x6+x7+x8)^8 ?
Yes in the sense that the simplified formula given by terms() is the same.
> and there is a difference in
> (x1*x2*x3*x4*x5*x6*x7*x8)^2
> and
> (x1*x2*x3*x4*x5*x6*x7*x8)
> althoug the resulting formulas are the same, or?
The first is reduced to the