Displaying 20 results from an estimated 10000 matches similar to: "Overlay PDF on histogram"
2009 May 09
2
Histogram frequencies with a normal pdf curve overlay
Dear List,
When I plot a histogram with 'freq=FALSE' and overlay the histogram
with a normal pdf curve, everything looks as expected, as follows:
x <- rnorm(1000)
hist(x, freq=FALSE)
curve(dnorm(x), add=TRUE, col="blue")
What do I need to do if I want to show the frequencies (freq=TRUE)
with the same normal pdf overlay, so that the plot would still look
the same?
Regards,
2007 Sep 10
1
overlay lattice histograms with goodness-of-fit pdfs
Hello,
I am new to R exploratory data analysis and plotting. Is anyone aware of a way
to overlay a set of conditional histograms with conditional PDFs? Below, I
generate a lattice plot of precipitation histograms based on different months
and stations, given a subset of the dataset:
histogram(~ data | month * station,
data = sta.stack[sta.stack[,"type"]=="precip" &
2002 Oct 16
1
how to overlay the histogram with fitted gamma density plot (emergent!!)
For a real data column X value ranged between (56.4521,32317.9) with missing values, I need to overlay 2 plots: histogram & fitted gamma density.
I use following to generate histogram.
xbk_seq(50,33000,by=100)
hist(x,breaks=xbk)
But I don't know how to get "fitted gamma density"?
In SAS proc capability, I got Shape=2.59, Scale=3481).
But when I do
plot(dgamma(x,
2011 Nov 29
1
Making the lines thicker in histogram
I'm using a histogram and want to overlay this onto a barplot. I need the
histogram lines to be thicker in order for it to stand out more on top of
the barplot. Is there a command in order to do this?
Thanks in advance.
--
View this message in context: http://r.789695.n4.nabble.com/Making-the-lines-thicker-in-histogram-tp4119639p4119639.html
Sent from the R help mailing list archive at
2012 Aug 06
4
Overlay Histogram
Dear all,
For two sets of random variables, say, x <- rnorm(1000, 10, 10) and y
<- rnorm(1000. 3, 20).
Is there any way to overlay the histograms (and density curves) of x and y
on the plot of y vs. x?
The histogram of x is on the x axis and that of y is on the y axis.
The density curve here is to approximate the shape of the distribution
and does not have to have area 1.
Thank you
2004 Mar 01
6
How to plot Histogram with frequence overlaid by distribution curve
Hi,
I am facing the problem that I want to plot a histogram chart set
freq to true and overlay with normal or weibull or exponential distribution
curve.
The sample code is shown as below:
>samp<-c(-8.2262,-8.2262,-8.2262,-8.20209,-8.09294,-8.07321,-8.07321,
-8.07321,-8.07175,-8.04948,-8.04948,-8.04948,-8.03848,-8.03848,
2009 Jul 20
3
Histograms on a log scale
Dear All,
I would like to be able to plot histograms/densities on a semi-log or
log-log scale.
I found several suggestions online
http://tolstoy.newcastle.edu.au/R/help/05/09/12044.html
https://stat.ethz.ch/pipermail/r-help/2002-June/022295.html
http://www.harding.edu/fmccown/R/#histograms
Now, consider the code snippet taken from
http://www.harding.edu/fmccown/R/#histograms
# Get a random
2010 Nov 23
2
overlay histograms on map at map coordinates
Hi all,
I'm trying to visualize animal movement data characteristics
spatiotemporally by overlaying many different histograms on a map. I
want the histograms to be plotted at coordinates in the map that
matches a region they describe. If I was just doing this once, I'd
fiddle in Illustrator after R and avoid the headache. But I'll be
doing it many many times so it seems
2011 Mar 19
1
lattice histogram function and groups
Hi,
>From the following code (tweaked from another user):
variable<-sample(rep(1:2,100))
individual<-rep(1:3, length(variable))
group<-rep(LETTERS[1:2],length(variable)/2)
mydata<-data.frame(variable,individual,group)
individual<-as.factor(individual)
group<-as.factor(group)
histogram(~variable|individual+group)
I get six panels, one for each of individuals
2009 May 27
1
Warning message as a result of logistic regression performed
I am sorry if this question sounds basic but I am having trouble understanding a warning message I have been receiving in R after attempting logistic regression.
I have been using the logistic regression function in R to analyse a simulated data set. The dependent variable "failure" has an outcome of either 0 (success) or 1 (failure). Both the independent variables have been previously
2006 Sep 21
2
Command area in SciViews 0.8.9 - second try
Dear all
I am writing again with a question I posted a few weeks ago (to no avail). I have a problem with SciViews for R. It's probably a slightly stupid question but I cannot find a solution to a very elementary problem. I am using SciViews 0.8.9 on with R 2.3.1pat on a Windows XP Home machine. R is set to SDI mode, I start R, enter "library(svGUI)", SciViews starts properly, I can
2011 May 05
4
Insert values to histogram
I'm trying to add the exact value on top of each column of an Histogram, i
have been trying with the text function but it doesn't work.
The problem is that the program it self decides the exact value to give to
each column, and ther is not like in a bar-plot that I know exactly which
values are been plotting.
If anyone have any new idea on how to do this
Thanks
Matias
--
View this
2008 Apr 23
1
pdf() and histogram() in function call
Here is a function I wrote. It runs no problem, but generate empty pdf
files.
I can't find what is the problem.
create.pdf<- function(x, dir)
{
dir.create(dir, showWarnings = FALSE)
plist<- c("a", "b" , "c", "d")
for(j in plist)
{
filedir<- paste(dir, "/", j, ".pdf",
2012 Jun 27
1
lattice histogram log and non log values
Hello all,
Please consider the following
library(lattice)
Colors. <-rep(brewer.pal(7, "Dark2"),2)
color <- 1
Data.X.. <- data.frame(UnitArea = c(rnorm(1000), rnorm(1000)), Type =
c(rep("Base",1000),rep("Log",1000)))
histogram( ~ UnitArea | Type, data = Data.X..,
xlab = "Unit Area", type = "density",
panel =
2008 Jan 15
4
Overlay plots from different data sets using the Lattice package
#After spending the entire day working on this question, I have
decided to reach out for support:
#I am trying to overlay a densityplot from one data set over a
histogram of another, if I were to plot the two individually, they
would look like:
# data frame construction
data.frame.A <- data.frame(rnorm(12*8), c(rep("one", 4), rep("two",
4), rep("three", 4)),
2017 Sep 25
0
Shift the normal curve to the top or near to the top of the histogram
Hi Abou,
Try this:
library(plotrix)
curve(rescale(dnorm(x
,mean=mean(Lizard.tail.lengths),sd=sd(Lizard.tail.lengths)),
c(0,6)),add=TRUE, col=2, lwd = 2)
Jim
On Mon, Sep 25, 2017 at 9:35 AM, AbouEl-Makarim Aboueissa
<abouelmakarim1962 at gmail.com> wrote:
> Dear All:
>
> One more thing.
>
> I want to add the normal curve to the histogram. Is there away to stretch
> the
2017 Sep 24
3
Shift the normal curve to the top or near to the top of the histogram
Dear All:
One more thing.
I want to add the normal curve to the histogram. Is there away to stretch
the peak of the curve to the top of the histogram or at least near to the
top of the histogram.
Please see the code below.
Lizard.tail.lengths <- c(6.2, 6.6, 7.1, 7.4, 7.6, 7.9, 8, 8.3, 8.4, 8.5,
8.6,8.8, 8.8, 9.1, 9.2, 9.4, 9.4, 9.7, 9.9, 10.2, 10.4, 10.8,11.3, 11.9)
x<-seq(5,12, 0.001)
2011 May 24
1
histogram with density
Hello All,*
*I want to draw a histogram with density curve. *
*For that simply i created a data called*"x" *and i used the function called
* hist(x, col = "blue", freq = FALSE),** *from this function i got a
histogram*.
*After that , i tried this function* ** lines(density(x), col = "red", lwd
= 2 ) *but i could not get the density curve.
So, Again i used
2013 Jan 22
3
density of hist(freq = FALSE) inversely affected by data magnitude
Hi,
I have a couple of observations, a question or two, and perhaps a
suggestion related to the plotting of density on the y-axis within the
hist() function when freq=FALSE. I was using the function and trying
to develop an intuitive understanding of what the density is telling
me. After reading through this fairly helpful post:
2009 Dec 09
3
Plotting frequency curve over histogram
Hello,
This is a problem for which there seem to be several solutions online, but
not really. My question was about plotting a curve over the histogram. All
the previous posts and messages talk about generating a *density
histogram*using (freq=F) and then plotting the density curve. However,
I find that
that seriously distorts my data and the plot becomes confounding to the
viewer.
I was