Displaying 20 results from an estimated 20000 matches similar to: "Help with histogram intervals"
2011 Jun 26
1
Plotting a gragh or histogram in a certain colour
Dear Sir,
Just started using R. I want to plot x>-1:20, for example, in the colour
blue. How do I do this?
Regards,
Ivo
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2011 Jul 08
4
Using t tests
Dear Sir,
I am doing some work on a population of patients. About half of them are
admitted into hospital with albumin levels less than 33. The other half have
albumin levels greater than 33, so I stratify them into 2 groups, x and y
respectively.
I suspect that the average length of stay in hospital for the group of
patients (x) with albumin levels less than 33 is greater than those
2011 Jul 15
3
Drawing a histogram from a massive dataset
Dear All,
I have a massive dataset from which I would like to draw a histogram.
Any ideas on how to accomplish this?
Thanks in advance,
Paul
2011 Oct 24
3
Creating a histogram properly
Hello all,
I'm trying to make a histogram of the data contained in my dataframe.
The summary of the data gives me exactly what I want
summary (Data)
V1 V2
first001: 3 last001: 9
first002: 3 last002: 7
first003: 2 last003: 6
(Other) :52 (Other): 27
But how do I capture the names and values in vectors so I can plot them?
2010 Aug 30
3
log y 'axis' of histogram
All,
I have been trying to get calls to hist(...) to be plotted
with the y-axis having a log scale.
I have tried: par(ylog=TRUE)
I have also looked at the histogram package.
Suggestions welcome.
--
Derek M. Jones tel: +44 (0) 1252 520 667
Knowledge Software Ltd mailto:derek at knosof.co.uk
Source code analysis http://www.knosof.co.uk
2007 Jun 20
2
how to create cumulative histogram from two independent variables?
Hi all,
I am extremely newbie to R. Can anybody jump-start me with any clues as to
how do I get a cumulative histogram from two independent variables,
cumhist(X,Y) ?
-jose
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2011 Jun 09
1
histogram - density on y axis and restriction to interval [0, 1]
Hello,
To indicate probability densities instead of counts on a histogram, I
specify freq = FALSE.
However, I expect that summing all top y coordinates over all the
intervals of the histogram will provide 1.
1)
v <- c(0.2885, 0.2988, 0.3139, 0.2615, 0.3179, 0.3163, 0.2583, 0.3052,
0.2527, 0.3147, 0.3235, 0.2408, 0.2480, 0.3108, 0.3577, 0.2829, 0.2694,
0.3275, 0.3314, 0.2639, 0.3076,
2006 Jun 08
3
Re-binning histogram data
Hi,
Short Version:
Is there a function to re-bin a histogram to new, broader bins?
Long version: I'm trying to create a histogram, however my input-data is
itself in the form of a fine-grained histogram, i.e. numbers of counts
in regular one-second bins. I want to produce a histogram of, say,
10-minute bins (though possibly irregular bins also).
I suppose I could re-create a data set as
2011 Jul 25
1
two sample histogram
dear all,
i am anewcomer. i have a set of paired data, the values are great different from each other. i want to show them in histogram.
first, how to draw each bar for corresponding paired data side by side;
second, how to set the scale of y axis? one is up to 100-fold to the other. ifdoubleslash is used to omit some coordinates, the histogram will looks better.
is there anyone that can help
2007 Sep 17
3
Histogram with colors
Is there a simple way to plot a histogram with colors?
For example, suppose I generate random points in the
N(2,1) distribution:
x <- rnorm(100000, mean = 2, sd = 1)
Now I would like to plot the histogram:
hist(x)
but I would like to show the bars with x < 0 in red, and the
bars with x >= 0 in lightgreen. Is there any simple way to
do it?
I think I can do it in two steps:
2004 Aug 19
3
probability histogram question
Hello, all;
I get an unexpected result when trying to plot a probability histogram
with R1.9.1 on windows xp:
#with the following code:
> x <- runif(100,0,1)
> hist(x)
> hist(x, freq=F)
> h <- hist(x, freq=F)
> summary(h)
# Length Class Mode
#breaks 11 -none- numeric
#counts 10 -none- numeric
#intensities 10 -none- numeric
#density 10
2005 Apr 20
6
Histogram
Dear everybody!
I am analysing data from an enquette. The answers are either A or B. How can I
draw a histogram without transforming the data from characters to numbers? If
the data are saved in a list M, hist(M[,1]) returns:
Error in hist.default(M[, 1]) : `x' must be numeric
Execution halted
Thank you in advance!
2004 Feb 04
5
Newbie question: histogram
Hello,
how do you create a histogram with a data frame?
year snow.cover
1970 6.5
1971 12.0
1972 14.9
1973 10.0
1974 10.7
1975 7.9
...
mydata=data.frame(year=c(1970,...),snow.cover=c(6.5,...))
hist(mydata) does not work.
Many thanks.
PR
2008 Jul 17
3
Histogram with two colors depending on condition
Dear List,
Say, we generate data like this-
dat<-rnorm(1000,1,2)
hist(dat)
How do i make the histogram, say, red (col = 2) before X = dat = 0, and rest say, green (col = 3) beyond X = dat = 0 in R?
The resulting histogram could be like this http://ehsan.karim.googlepages.com/histogram.JPG (edited)
Thanks in advance.
Ehsan
http://ehsan.karim.googlepages.com/diaryofastatistician
2005 Jun 13
3
Lattice: Combining xyplot and histogram
Dear all,
I am trying to create a lattice plot which consists of 1 xyplot and 2
histograms (each for x and y).
My first try was like this:
x<-rnorm(1000)
y<-rnorm(1000)
xy <- xyplot(y~x)
hist.x <- histogram(x)
hist.y <- histogram(y)
print(xy, position=c(0, 0.2, 1, 1), more=TRUE)
print(hist.x, position=c(0, 0, 1, 0.33),more=T)
print(hist.y, position=c(0.8, 0, 1, 1))
Ok, this is
2003 Oct 02
3
Query: weighting cells in histogram
I have the 'breaks' for the histogram ('hist') but I want weight the cells instead of using actual observations. I thought that using freq=FALSE implied that the numbers in 'x' were weights but this turned out to be wrong.
Any help and/or comment is very much appreciated.
Regards,
M?rten
M?rten Bjellerup
Doctoral Student in Economics
School of Management and Economics
2008 May 15
1
lattice histogram problem with integers values and nint
been puzzling over this for a day.
Summary
integer variable to use with histogram, 170,000 rows. Value is day of
year. Hist works, lattice histogram with nint does not work (spurious
spikes in display), lattice histogram using breaks=c(0:365) works
fine. Spike values appear to be sum of two adjacent bins. Want to
know if this is a familiar problem, and what the recommended
work-around is.
2011 Jan 10
3
Lattice, combine histogram and line graph
Hello everyone,
I have a simple histogram of gasoline prices going back a few years that
I want to insert a line graph of consumer price index (cpi) over the
histogram. I have looked through the "Lattice" book by Deepayan Sarkar
but don't see anything there. How might this be done? An example would
be wonderful.
Current code snippet follows. For example additional field to add
2011 Nov 04
3
barplot as histogram
Hello:
I'm dealing with an issue currently that I'm not sure the best way to
approach. I've got a very large (10G+) dataset that I'm trying to create
a histogram for. I don't seem to be able to use hist directly as I can
not create an R vector of size greater than 2.2G. I considered
condensing the data previous to loading it into R and just plotting
the frequencies as a
2010 Nov 11
3
overlap histogram and density
Hi,
Does anybody encounter the same problem when we overlap histogram and density
that the density line seem to shift to the right a little bit?
If you do have the same problem, what should we do to correct that?
Thank you.
par(mar=c(4,4,2,1.2),oma=c(0,0,0,0))
hist(datobs,prob=TRUE, main ="Volume of a catchment from four