Displaying 20 results from an estimated 600 matches similar to: "Lattice box percentile plot"
2005 Oct 18
1
A two-part question about box-percentile plots, bpplot(): (1) yaxt="n" doesn't seem to work (2) how to display mean values
Dear List,
I have a two-part question related to bpplot(), a box-percentile plot
function in the Hmisc package.
Take the example given in the Help for bpplot(), for instance.
(1) How does one set but not draw the y-axis? What I did was,
bpplot(... , yaxt="n"), but that apparently does not work (though it
works for boxplot()).
(2) How does one display the mean value of each variable
2001 Nov 25
2
Boxplots using percentiles?
The standard R boxplot appears to use quartiles to determine the height of
the rectangles and a range parameter - RNG - (default=1.5 I think) that
determines the length of the whiskers as <= RNG x Interquartile Range. Is
it possible to instead define the range as extending to the 95th percentile?
If so, how would this be done?
nb, I'm plotting multiple boxplots on a single chart so a
2010 Jan 15
5
panel.bpplot
Hi everybody,
I am a newbie in R. I would like to use the panel.bpplot function on my data
set but I have some problems. Can this function work on matrix? My data set
have some NaN and when I run panel.bpplot function it returns error due to
the presence of NaN. How Can I solve this?
Thank you so much for your help
netrunner
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2008 Jan 31
1
how to customize boxplot
Dear List,
I'd like to make boxplots of a large number of observations (+/-
20.000), which are distributed log-normal and right skewed. The
problem is that with standard boxplots a too large number of
observations are displayed as outliers. I also tried to display the
log of the observations, but even then there are to may outliers to my
taste. So I'd like to change the standard IQR box
2004 Apr 06
2
percentile-percentile plot
Hi,
Is there a function that does percentile-percentile plot. I do not mean
the qqplot. I need to plot the percentiles rather than points themselves.
I am hoping for a plot that tells me that the x percentile of one data set
corresponds to the y percentile of the other. for example a point on the
plot of (.5, .2) will tell me that the 50th percentile of the first data
and the 20th percentile of
2011 Apr 17
3
Box plot with 5th and 95th percentiles instead of 1.5 * IQR: problems implementing an existing solution...
Hi all,
I'm just getting started with R and I would appreciate some help. I'm having
trouble creating a boxplot with whiskers at the 95th and 5th percentiles
instead of at 1.5 * IQR. I have read the relevant documentation, and checked
existing mails on this topic. I found a small modification that should work
: https://stat.ethz.ch/pipermail/r-help/2001-November/016817.html and tried
to
2010 Sep 07
2
Percentile rank for each element in list
Heeeelp
Given this data
x <- c(1,5,100,300,250,200,550,900,1000)
> quantile(x)
0% 25% 50% 75% 100%
1 100 250 550 1000
When I run the quantile, I can only know the value of the nth
percentile
I want to know what's the percentile position of each items in the
list
Sample
1 = 100% on the list has 1 or more
5 = more than x% on the list has 5 or more
100 = more than x% on the
2011 Dec 23
3
data vector to corresonding percentile ranks
I have a problem where I need to calculate the corresponding cohort
percentile ranks for each of several variables.
Essentially, what I need is a function that will calculate the
distribution-free percentiles from each variable's data vector, returning a
corresponding vector of percentiles:
e.g.:
percentile.my.data<-/function/(my.data)
I tried to make ecdf() perform this task but
2011 May 25
3
how to compute the inverse percentile of a given observation w.r.t. a reference distribution
Hi,
can anyone help me to figure out how to compute the percentile of an
individual observation with respect to a reference distribution.
What I mean is. Let's assume I have a vector consisting of 10 numbers
{3,5,8,1,9,5,4,3,5.5,7} and I want figure out what percentile the
number 4.9 corresponds to. I failed to find any reference to such a
function, although I would assume this must
2008 May 16
1
(1-alpha)th percentile
hello;
firstly, my gratitude to all who help me to find a function that allows me
to add confidence interval to my graph.
in order to calculate the (1-alpha)th percentile of for exemple an
F(df1,df2) distribution i do like this:
v<-df(alpha,df1,df2)
percentile<-qf(v,df1,df2,alpha)
if it is true please alert me , and if it is not what should do then?
:handshake:
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2009 Aug 18
2
value of nth percentile
Dear All,
I have to get the value of say 90th percentile of precipitation time series.. The series is of daily precipitation value of 96 years, I have to to get 90the percentile value of daily precipitation each year. If you know the R code or command for this please let me know.
I would appreciate your early response.
Thanking you,
Sincerely,
Ajay.
2013 Jan 03
1
Inserting percentile values in a data frame
Hello
I need to calculate and insert the values for the 50,75,90,95 & 99
percentiles in a data frame for each row.
I used agr1$quantile <- quantile(agr1$cnt, probs=c(.50, .75, .90, .95, .99))
but that didn't work.
How can calculate the percentile for my variable "cnt" , insert & name the
percentile as p50, p75, etc
in my data frame agr1?
Thanks in advance for your
2004 Jan 22
3
adding mean to boxplot
I am a new and unexperienced user of R and got so far as to know how to produce
boxplots. I have no experience of messing with function code, so presently I do
not know how to create a boxplot with group means instead of group medians. If
somebody could help me either replace the median with the mean or superimpose
the mean onto the existing boxplot, it would be appreciated.
2012 Mar 03
3
percentile of a given value: is there a "reverse" quantile function?
Dear all,
I am familiar with obtaining the value corresponding to a chosen
probability via the quantile function.
Now I am facing the opposite problem I have a value an want to know it's
corresponding percentile in the distribution. So is there a function for
this as well?
Thank you for your support in advance, Felix
2012 Nov 05
2
Replace array with percentile values
Hi:
I have an array of measurements, that I've been doing linear
regression model and AI models on. Because there are many errors and
the values are "ill-formed" I would like to copy the array, but
replace each value with the PERCENTILE of that value, in the original
array.
i.e.
mesments$V1: 9, 77, -1
would become: mesmentsCopy$V1: 50, 100, 0
The actual array has many more
2002 Jun 05
1
How to put values of 25 and 75 percentile on boxplot?
Hi all,
One quick question:
How to put values of 25 and 75 percentile on boxplot?
Thanks in advance.
Nianqing Xiao, Ph.D
NCI Center for Bioinformatics, NIH
SAIC/Advanced Systems Group
> 6116 EXECUTIVE BLVD 4026J
> MSC 8335
> BETHESDA MD 20852
Phone: 301-451-6357
Fax: 301-480-4222
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2009 Mar 04
3
Diff btw percentile and quantile
To calculate Percentile for a set of observations Excel has percentile()
function. R function quantile() does the same thing. Is there any
significant difference btw percentile and quantile?
Regrads,
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2012 Sep 28
1
z-score to percentile, and back again (Normal)
In R, what is the best way to convert z-scores (Normal distribution) to a percentiles, and vice-versa.
(I'll be looking to do the same with other distributions eventually.)
===
Peter Petto <ppetto at ppetto.com>
Bay Village, OH 440.249.4289
2012 Nov 08
3
difference percentile R vs SPSS
Dear list,
I am calculating the 95th percentile of a set of values with R and with SPSS
In R:
> normal200<-rnorm(200,0,1)
> qnorm(0.95,mean=mean(normal200),sd=sd(normal200),lower.tail =TRUE)
[1] 1.84191
In SPSS, if I use the same 200 values and select Analyze -> Descriptive Statistics -> Frequencies
and under "Statistics", I type in '95' under Percentiles,
2007 Jun 18
2
Calculating Percentile in R
Hi all,
I have a problem on how R calculates Percentiles :
Suppose I have following data set:
> data1
[1] -16648185 -14463457 -14449400 -13905309 -13443436 -13234755 -12956282 -11660896
[9] -10061040 -9805005 -9789583 -9754642 -9562164 -9391709 -9212182 -9151073
[17] -9092732 -9068214 -8978151 -8943912 -8761890 -8632106 -8541580 -8501249
[25] -8234466 -8219015