Displaying 20 results from an estimated 90 matches similar to: "lmomRFA-package: regsimq()"
2010 Jul 21
1
"lmomRFA" package: error bounds/confidence intervals
Dear List
I?m using the ?lmomRFA? package to fit different distributions to my data
sample. To calculate the error bounds I used:
regsimq(?)
and
sitequantbounds(?)
So my questions are:
Are error bounds and confidence intervals the same thing?
And: Does
regsimq(? boundprob = c(0.05, 0.95))
calculate the 90 or the 95% confidence interval?
If error bounds and confidence intervals are
2009 Nov 16
1
lmomco package and confidence limits?
Hello,
I am using the lmomco package (lmom.ub and pargev) to compute the GEV
parameters (location, scale, and shape), which are used to estimate
return values. I was wondering how/if I can calculate upper and lower
confidence (CI_u, CI_l) intervals for each return frequency using the
GEV parameters to fill-in the table below?
Xi (location) = 35.396
Alpha (scale) = 1.726
Kappa (shape) =
2011 Mar 22
3
Accelerating the calculation of the moving average
Dear List,
I have a data frame with approximately 500000 rows that looks like this:
?Date??? time??? value
?
19.07.1956????????? 12:00:00?????????????? 4.84
19.07.1956????????? 13:00:00?????????????? 4.85
19.07.1956????????? 14:00:00?????????????? 4.89
19.07.1956????????? 15:00:00?????????????? 4.94
19.07.1956????????? 16:00:00?????????????? 4.99
19.07.1956????????? 17:00:00?????????????? 5.01
2012 Oct 10
4
own function: computing time
Hi all,
I wrote a function that actually does what I want it to do, but it tends to be very slow for large amount of data. On my computer it takes 5.37 seconds for 16000 data points and 21.95 seconds for 32000 data points. As my real data consists of 18000000 data points it would take ages to use the function as it is now.
Could someone help me to speed up the calculation?
Thank you, Tonja
2010 May 26
3
Peak Over Threshold values
Dear List
I hope you can help me: I?ve got a dataframe (df) within which I am looking
for Peak Over Threshold values as well as the length of the events. An event
starts when walevel equals 5.8 and it should end when walevel equals the
lower threshold value (5.35).
I tried ?clusters (?)? from ?evd package?, and varied r (see example) but it
did not work for all events (again
2013 Sep 24
1
request for help in R
respectd sir,
i am working on regional frequency analysis of flood flow data and want to use packages lmomRFA, lmom, imomco,etc andby using these i want to find RMSE , errorbounds and absolute biase but could not make it clear to use, please help
regards
atta muhammad asif
assistant professor
atta_ycc@yahoo.com
[[alternative HTML version deleted]]
2010 Sep 15
2
Contour line coordinates
Hi all,
I used contour() to add contour lines to a plot. Now I?m wondering if there is a way to get an output of the calculated x- and y- coordinates of the contour lines?
Tonja
2012 Nov 20
1
Fit Gumbel Distribution using Method of Moments
Hi all!
I'm sure this is a stupid question but I can't find an answer. How can I fit
the Gumbel distribution to my data using The Method of Moments in R?
Thank you for helping me,
Tonja
2017 Nov 15
2
ks.test() with 2 samples vs. 1 sample an distr. function
Dear all,
I have a question concerning the ks.test() function. I tryed to calculate the example given on the German wikipedia page.
xi <- c(9.41,9.92,11.55,11.6,11.73,12,12.06,13.3)
I get the right results when I calculate: ks.test(xi,pnorm,11,1)
Now the question: shouldn't I obtain the same or a very similar result if I commpare the sample and a calculated sample from the distribution?
2017 Nov 15
0
ks.test() with 2 samples vs. 1 sample an distr. function
In the first example you are performing a one-sample test against a continuous cumulative distribution (in this case a normal distribution). In the second case you are performing a two-sample test. You drew your values for x non-randomly by specifying fixed intervals along a normal distribution, but ks.test() just sees that you have provided two samples, not one sample and values along a
2011 Jul 27
2
fitting sine wave
Dear R-helpers
?
I have 7 data points that I want to fit a continuous curve to, that should look similar to a sine wave
My data points would mark the local minima and maxima respectively.
This is what I?ve got so far. And I would keep doing so, but sadly nls() then says that it has reached the maximum number of Iterations?
?
2011 Jan 17
1
intercept point coordinates
Hi List,
Can someone help me to calculate the coordinates of the red and green points? In this
example I found their approximate location by trying, but as I have to analyse
many similar curves, I?d rather calculate the exact location.
data<-
c(0.008248005, 0.061242387, 0.099095516, 0.189943027, 0.227796157, 0.258078661,
0.280790538, 0.303502416, 0.386779301, 0.454914934, 0.545762445,
2010 Aug 02
1
QQ-plot – Axes
I would like to change the position of the major tick marks in my qq-plot?
Right now the ticks are set at 5.5, 6.0, 6.5 and 7.0.
I would like them to be at 5.4, 5.6, 5.8, 6.0, 6.2, 6.4, 6.8 and 7.0. So I
would have to remove some of the present ticks. So far I can only add ticks
to the plot with:
axis(1,at=c(5.4, 5.6, 5.8, 6.0, 6.2, 6.4, 6.8, 7.0))
Is there a solution to my
2011 Jul 19
1
Lattice plot problem outputting to jpeg
Hi.....I am relatively new to R but was quite pleased with myself at having
generated a series of lattice plots as PDFs. I was very surprised when
plotting these out as jpegs (or png or tiff) that the strip title
information above each lattice plot vanished. The pdf was fine. Has anybody
any ideas? I can't add an image as the information is sensitive.
Many Thanks
Steve Creamer
Here is the
2011 May 24
2
escape characters in shell commands
On a Windows platform I am trying to count the number of lines in a file.
In a DOS window, the following works:
C:\Users\jar>findstr /R /N "^" D:\my_dir\my_file | find /C ":"
5317
(it works with double \\ also)
But in R, I need to make this string up with the file name I get from
file.choose():
filename = file.choose()
#get the number of lines in the file
# first make a
2006 Nov 20
2
problem with loop to put data into array with missing data for some files
Dear R-help community,
My main goal of this message is to find a way of skipping a file of a month/year
in a loop that does not exist (and making it's output into an data.out array
would be NA) and moving onto the next year/month in the loop to carry on filling
data.out with real precipitation data.
The situation so far:
I downloaded 50 years worth of GRIB data files from the NCEP data
2006 Nov 20
3
problem with loop to put data into array with missing data forsome files
Hi Jenny
If you want a general solution I understand.
However I just downloaded the file fine (as far as I can tell) so you
are welcome to have a copy. I can email it to you if you want.
I do not think your test for NA is valid. i.e
if(test != "NA"){
}
I think you should use
if(is.na(test)){
}
Or something similar.
J
---
John Seers
Institute of Food Research
Norwich
2006 Jun 16
0
multiple samba instances unable to join domain simultaneously
File this under the "this used to work" section.
Particulars:
Version: 3.0.13
Build source: Source RPM
OS/Distribution: RedHat Enterprise Linux AS 3
Hardware: dual-Xeon, 4GB RAM, SCSI OS disks
Security configuration: NT4 domain, NT4 PDC and BDC
This system is being run under RedHat Cluster Services.
We have three samba instances running on one physical machine, providing
windows
2007 Apr 18
0
As well
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2007 Apr 18
0
As well
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