Displaying 20 results from an estimated 10000 matches similar to: "barplot as histogram"
2010 Sep 23
2
dnorm
Dear R-users
Idea:
Plot a dnorm line using specific mean/sd to complete a histogram (skewed). xs:range of y-values, ys: dnorm function
Problem:
I expected to multiply the ys function with the sample size (n=250-300). I was wondering about a factor between 12'000 and 30'000 to match the size of the dnorm line with the specific histogram.
Thanks
Sibylle
hist(Biotree[Ld,]$Height2008,
2005 Oct 16
2
Animated lissajous
Here's some code to make lissajous dance. I've attached a small sample
GIF.
Cheers,
Rob Steele
robsteele at yahoo dot com
plot.lissajous = function(omega.x, omega.y, delta = 0, num.thetas = 200)
{
thetas = seq(0, 2 * pi, length = num.thetas)
xs = sin(omega.x * thetas + delta)
ys = cos(omega.y * thetas)
plot(xs, ys, type = 'l', lwd = 3, ann = FALSE, axes = FALSE)
}
2006 Mar 16
2
DIfference between weights options in lm GLm and gls.
Dear R-List users,
Can anyone explain exactly the difference between Weights options in lm glm
and gls?
I try the following codes, but the results are different.
> lm1
Call:
lm(formula = y ~ x)
Coefficients:
(Intercept) x
0.1183 7.3075
> lm2
Call:
lm(formula = y ~ x, weights = W)
Coefficients:
(Intercept) x
0.04193 7.30660
> lm3
Call:
2011 Oct 24
1
using predict.lm() within a function
I've written a simple function to draw a regression line in a plot and
annotate the line showing the slope
with a label. It works, as I'm using it, when the horizontal variable
is 'x', but gives incorrect results otherwise.
What's wrong?
# simple function to show the slope of a line
show.beta <- function(model, x="x", x1, x2, label, col="black", ...)
2023 May 20
1
[libguestfs-common PATCH] Add support for OCaml 5.0
Pervasives is deprecated since Ocaml 4.08 and has been
removed in OCaml 5.0.
https://github.com/ocaml/ocaml/pull/1605
---
mlstdutils/std_utils.ml | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mlstdutils/std_utils.ml b/mlstdutils/std_utils.ml
index 0d2fa22..86b21a7 100644
--- a/mlstdutils/std_utils.ml
+++ b/mlstdutils/std_utils.ml
@@ -341,12 +341,12 @@ module List =
2002 Jan 05
1
abline and log plots (PR#1243)
Full_Name: Stephen Eglen
Version: 1.4
OS: Redhat Linux 7.1
Submission from: (NULL) (128.252.204.36)
abline() produces a spurious line in addition to the correct line, at least with
the X11 driver. The postscript file generated also has nan values in it, which
causes an error under ghostscript.
xs <- c(0, 150, 300)
ys <- c(75, 40, 23)
par(mfrow=c(1,2))
plot(xs,ys, log="")
2016 Jul 07
2
Re: [PATCH v3 4/8] mllib: Add some imperative list manipulation functions.
On Thursday 07 July 2016 17:30:03 Richard W.M. Jones wrote:
> This adds imperative list manipulation functions inspired by Perl.
> The functions are passed list refs which get updated in place.
>
> This allows us to replace some awkward pure functional code like:
>
> let xs = ys in
> let xs = if foo then xs @ zs else xs in
>
> with:
>
> let xs = ref ys in
2012 Feb 06
1
ggplot2 geom_polygon fill
Hi everyone,
i've been trying to make a special plot with ggplot2, but I can't get it to
fill the polygon I'd like to see filled so very very much.
I want to display the difference or change in the distribution of the
modified Rankin Scale between two groups. mRS is a scale for disability or
daily activities competence.
It looks like this.
2016 Jul 08
2
Re: [PATCH v3 4/8] mllib: Add some imperative list manipulation functions.
On Thu, Jul 07, 2016 at 06:08:43PM +0100, Richard W.M. Jones wrote:
> On Thu, Jul 07, 2016 at 07:00:46PM +0200, Pino Toscano wrote:
> > On Thursday 07 July 2016 17:30:03 Richard W.M. Jones wrote:
> > > This adds imperative list manipulation functions inspired by Perl.
> > > The functions are passed list refs which get updated in place.
> > >
> > > This
2002 Jun 20
16
problem with predict()
Hi,
It is most probably just my R-ignorance, but I have following problem with
using predict(). I train the model using 164 cases and then I try to use
it on the data set with 35 cases, but I am getting 164 predictions ?
R-code below illustrates in more detail what I am doing.
Truly yours,
R
train = read.csv("train.csv", header = TRUE, row.names = "mol",
2009 Aug 19
1
ridge regression
Dear all,
I considered an ordinary ridge regression problem. I followed three
different ways:
1. estimate beta without any standardization
2. estimate standardized beta (standardizing X and y) and then again convert
back
3. estimate beta using lm.ridge() function
X<-matrix(c(1,2,9,3,2,4,7,2,3,5,9,1),4,3)
y<-t(as.matrix(cbind(2,3,4,5)))
n<-nrow(X)
p<-ncol(X)
#Without
2007 Oct 13
2
How to identify the two largest peaks in a trimodal distribution
Hello all
I'm trying to do a simulation that involves identifying the minimum
point between two peaks of a (usually) bimodal distribution. I can do
this easily if there are only two peaks:
CnBdens<-density(Ys/Xs) #probability density function for ratio of Ys
to Xs
for(p in 1:512) ifelse(CnBdens$y[p]>CnBdens$y[p-1],peak1<-p,break)
#identifies first peak in probability
2009 Aug 19
1
Ridge regression [Repost]
Dear all,
For an ordinary ridge regression problem, I followed three different
approaches:
1. estimate beta without any standardization
2. estimate standardized beta (standardizing X and y) and then again convert
back
3. estimate beta using lm.ridge() function
X<-matrix(c(1,2,9,3,2,4,7,2,3,5,9,1),4,3)
y<-as.matrix(c(2,3,4,5))
n<-nrow(X)
p<-ncol(X)
#Without standardization
2008 May 08
1
[LLVMdev] Vector code
Nicolas Capens wrote:
> Here's essentially what I try to generate:
>
> void add(float z[4], float x[4], float y[4])
> {
> z[0] = x[0] + y[0];
> z[1] = x[1] + y[1];
> z[2] = x[2] + y[2];
> z[3] = x[3] + y[3];
> }
This is the vectorized llvm-assembly equivalent:
-----
define void @add(<4 x float>* %z, <4 x float>* %x, <4 x float>* %y) {
2012 Mar 16
2
plotting border over map
I am using following codes to plot map
library(sp)
library(rgdal)
library(maps)
library(gplots)
library(clim.pact)
library(fields)
source("/R/PlotGridded2DMap.R")
source("/R/image.plot.fix.R")
source("/R/image.plot.plt.fix.r")
seasonal_plot<-function(input,lonll=-180,latll=-90,lonres=5.,latres=3.75,write_file=TRUE,The_title=NULL){
if(is.null(The_title)){
2013 Apr 23
2
Frustration to get help R users group
Dear R users/developers
I requested help to solve the problem of formulating Multivariate Sample
selection model by using Full Information Maximum Likelihood
(FIML)estimation method. I could not get any response. I formulated the
following code of FIML to analyse univariate sample selection problem.
Would you please advise me where is my problem
library (sem)
library(nrmlepln)
Selection
2003 Aug 13
6
placing labels in polygon center ?
Dear all,
is there any function to calculate the center of a polygon mass in R?
Actually I need to find the best location within polygons to place labels.
Thanks for any hint
Jens Oehlschl?gel
--
COMPUTERBILD 15/03: Premium-e-mail-Dienste im Test\ --------...{{dropped}}
2008 Jun 05
2
Fourier Transform
Hello All,
I wanted to perform a fourier transform on high frequency financial data. I
have searched and have not found much on this topic for R. I was wondering
if anyone has used any libraries for it or have come across any papers I may
read.
Many Thanks,
Neil Gupta
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2007 Mar 20
5
abline within data range
Dear R helpers,
I would like to have abline, for a lm model for
example, lying within data range. Do you know how to
get it?
Thank in advance
Nguyen D Nguyen
#CODE
x<- rnorm(200, 35,5)
y<- rnorm(200, 0.87,0.12)
plot(y~x, xlim=c(0,50), pch=17, bty="l")
abline(lm(y~x))
# I would like abline is between min(x) and max(x)
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2011 Apr 04
1
multiple variables Y and X
Hello
I have a model with several hundred Y variables, and also several 1000 X variables. The model is linear lm(Y ~ X). My questions are:
1.- how to avoid writing all Xs variables? is list() the right function?
2.- about the multiple Ys with dependence among some of them, how to incorporate that information in the linear model?
Thank you
Rosario