Displaying 20 results from an estimated 200 matches similar to: "Confidence Interval"
2009 Mar 05
1
Regressão linear
Ol?. Tenho um arquivo que a cada 6 linhas corresponde uma amostra da qual
preciso dos coeficientes da regress?o linear. Como fa?o para que o
programa distinga a cada 6 linhas como uma amostra e n?o calcule como um
todo?
Estou usando a fun??o: model=lm(y ~ x)
Sueli Rodrigues
Eng. Agr?noma - UNESP
Mestranda - USP/ESALQ
PPG-Solos e Nutri??o de Plantas
Fones (19)93442981
(19)33719762
2009 Jul 02
1
Box Plot outliers label
Hi!
How can I add labels in the outliers inside a boxplot.
Here is my code, at now:
mun <- as.data.frame(read.csv2("consolidada_v3.csv"))
micro <- mun$nmicro
medprop <- mun$medprop
mimedprop <- split(medprop, micro)
boxplot(mimedprop, col="chartreuse3", main="Área média das propriedades
rurais", xlab="Microrregiões", ylab="ha")
I
2007 Oct 26
1
Fwd: Ajuda em R
An embedded and charset-unspecified text was scrubbed...
Name: n?o dispon?vel
Url: https://stat.ethz.ch/pipermail/r-help/attachments/20071026/5710517e/attachment.pl
2007 Feb 15
1
Function to assign quantiles?
Hi.
If I call the quantiles function as follows:
qvec = quantiles(dvals,probs=seq(0,1,0.1))
the results will return a vector something like the following example:
0% 10% 20% 30% 40% 50% 60% 70% 80% 90%
100%
56.0 137.3 238.4 317.9 495.8 568.5 807.4 1207.7 1713.0
2951.1 8703.0
Now I want to assign the deciles, 1 - 10, to each
2012 Aug 08
1
dimnames in array
Hello,
I'm working with an array; I'm trying to make it so that an array of
dim(42,2,2) has names whose length corresponds to that of the array,
and am hoping someone with experience with this can see what I'm not
doing correctly:
data11 = array(0,c(41,2,2))
y = lsoda(x0,times,fhn$fn.ode,pars)#This is make.fhn() from colloc
infer package#
y = y[,2:3]
2010 Aug 09
1
Different colour in each bar in lattice package
Hi,
I try to plot bars with different colours in a barchart graphic. My idea
is make that all X-Levels from trat var with different colour (grey
scale). I search for a solution but dont find any.
Any help?
Thanks
dados <- structure(list(Medias = c(0.994169096209855, 0.99416342412449,
0.974683544303797, 0.954430379746835, 0.669047619047619, 0.999999998475569,
0.994163424124514,
2008 Jul 21
0
optimize function help!!
Dear R users,
I?m trying to optimize simultaneously two binomials inequalities used to
acceptance sampling, which are nonlinear solution, so there is no simple
direct solution.
The 'n' represents the sample size and the 'c' an acceptance number or
maximum number of defects (nonconforming) in sample size.
The objective is to obtain the smallest value of 'n' (sample size)
2011 Dec 31
1
Simple problem
Hi,
when I use the install.packages() function this make a download of
packages, try do compile/install packages and delete the downloaded
file. But if the compilation of package fail, I need to make the
download again because R delete all downloaded file. How I can make
install.packages dont delete the downloaded file automatically to be
used again in case of compilation fail?
Thanks
2006 Apr 05
5
QoS - Ping problem
Hello all,
I have set my QoS solution and now I am facing a little problem...
When I ping to my server it has some lost packages:
Estatísticas do Ping para 172.30.0.1:
Pacotes: SENDED = 1029, RETURNED = 880, LOST = 149 (14% de perda),
Aproximar um número redondo de vezes em milissegundos:
Mínimo = 0ms, Máximo = 686ms, Média = 105ms
If I disable my QoS ping stats to be ok. I even have
2007 May 26
2
polygon error?
Hi.. I'm not sure why polygon returns an area above the standard normal curve.
z <- pretty(c(-3,3), 100)
ht <- dnorm(z)
data <- data.frame(z=z, ht=ht)
zc <- 1.645
plot(data, type="l")
lines(data)
t <- subset(data, z>zc)
polygon(t, col="red")
Thanks,
Lance
[[alternative HTML version deleted]]
2002 Jan 30
2
Shade area under curve?
Hi all,
I've got this graphics question which really should be easy. I want to shade
an area between bounds under a curve. A suitable beginning seems to be the
following:
> plot(dnorm,-4,4)
> segments(-4,0,4,0)
> segments(-2,0,-2,dnorm(-2))
> segments(2,0,2,dnorm(2))
It is the area between -2 and 2 which I want to shade (or something
similar). Hints anyone?
Robert
2011 Mar 03
3
Probabilities greather than 1 in HIST
Dear all,
I am a newbie in R and could not find help on this problem. I am trying to
plot an histogram with probabilities in the y axis. This is the code I am
using:
#TLC uniform
n=30
mi=1; mx=6
nrep=1000
xbar=rep(0,nrep)
for (i in 1:nrep) {xbar[i]=mean(runif(n,min=mi,max=mx))}
hist(xbar,prob=TRUE,breaks="Sturges",xlim=c(1,6),main=paste("n =",n),
xlab="Média",
2008 Oct 21
3
R command line
Hi!
Is there a Gui for R with improvements in the command line? I'm not looking
for buttons, menus and etc, but (more) colored syntax, auto-complete
commands and etc?
Best regards,
Raphael Saldanha
saldanha.plangeo@gmail.com
[[alternative HTML version deleted]]
2009 Jul 03
2
R on flash
Hi!
Is there some R version for flashdisk, pendrive etc ?
--
Regards,
Raphael Saldanha
saldanha.plangeo@gmail.com
[[alternative HTML version deleted]]
2011 Nov 29
1
Read TXT file with variable separation
Hi!
I have to import some TXT files into R, but the separation between the
columns are made with different blank spaces, but each file use the
same separation. Example:
31 104 5 0 11RUA SAO
SEBASTIAO 25
BAIRRO FILETO
01
2008 Dec 02
4
Variables inside a for
Hi!
I had a database with some variables in sequence. Let me say: TX01, TX02,
TX03 and TX04.
But I need to run some regressions changing the variables... so:
variable <- paste("TX0", 1:4, sep="")
for(i in 1:4){
test[i] <- lm(variable[i] ~ INCOME, data=database)
}
But doesn't work... lm tries to find a variable inside database named
variable[i] ...
Suggestions?
2008 Jul 26
2
Sample
Hi!
I have a data.frame, like this one:
> data
0-100 100-250 250+
a 9 18 16
b 33 25 27
c 21 19 17
d 25 22 19
e 40 39 19
f 77 45 29
If I request a sample of 2, I have the following:
> sample(data, 2)
0-100 250+
a 9 16
b 33 27
c 21 17
d 25 19
e 40 19
f 77 29
How can I request a sample from the
2008 May 17
1
Recode
Hi!
Using recode in cars package, I tryed to use the following:
recode(data$nrcomp, "lo:5='0 to 5'; 5:hi='bigger than 5'")
I got:
Erro em parse(text = strsplit(term, "=")[[1]][2]) :
unexpected end of input in "'0 to 5"
When I try only numbers, or only text, it's ok, but when I try to combine
numbers and text, I got a error...
Any help?
2008 Jul 26
2
Spatial Sample
Hi!
How can I make a spatial sample?
Can someone recommend theorical books and materials for this?
--
Raphael Saldanha
UFJF - Brazil
[[alternative HTML version deleted]]
2015 Sep 10
4
Message moved to Spam folder mysteriously
Hi there,
How dovecot move the message to Spam without antispam plugin installed or sieve rule to move to this folder?
I have no configuration to do this.
My logs:
Sep 10 12:12:44 mda02 dovecot: imap(my.user at mydomain.com): Warning: Inotify instance limit for user 5000 (UID vmail) exceeded, disabling. Increase /proc/sys/fs/inotify/max_user_instances
Sep 10 12:12:45 mda02 dovecot: imap(my.user