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10 results for “from:kmmoon100”

Comparison of two weibull distributions
kmmoon100 · Nov 4, 2013 · r-help

Thank you so much for your explanation. I might be in a trouble again with processing log-likelihood analysis. If it happens, may I ask your instuctions next time? -- View this message in context: http://r.789695.n4.nabble.com...

Optimization failed in fitdistr (Weibull distribution)
kmmoon100 · Oct 28, 2013 · r-help

Hi Berend, Thank you for your reply. How can I use dput function for this type of data? I looked up the description of the function but I still can't understand how to use it for solving my error...

Comparison of two weibull distributions
kmmoon100 · Nov 3, 2013 · r-help

Hello, How can I do a test of two weibull distributions? I have two weibull distribution sets from two wind datasets in order to check whether they are same. I thought 2 sample t-test would be applicable but I...

Plotting multiple weibull distributions in one graph
kmmoon100 · Nov 12, 2013 · r-help

Hello, I am trying to plot multiple weibull distributions in one graph. Does anyone know how to produce? I already have different parameters for weibull distributions (shape and scale) Here are examples. Shape Scale 2011 2.455 21.657 2010...

Optimization failed in fitdistr (Weibull distribution)
kmmoon100 · Oct 28, 2013 · r-help

Hello everyone, This is Kangmin. I am trying to produce shape and scale of my wind data. My data is based on wind speed frequency with 1km/hr increment. data is described below. Windspeed (km/h) Frequency 1 351 2...

"Optimization fail" error from fitdistr (Weibull distribution)
kmmoon100 · Oct 28, 2013 · r-help

Hello everyone, This is Kangmin. I am trying to produce shape and scale of my wind data. My data is based on wind speed frequency with 1km/hr increment. data is described below. Windspeed (km/h) Frequency 1 351 2...

How can I get seasonal variation table from generalized additive mixed models in R?
kmmoon100 · Nov 18, 2013 · r-help

Hello everyone, I used a function called gamm in mgcv in R program to investigate seasonal variation of wind speed based on 13 years of measurement dataset. I would like to use this variation in my formula for my study...

Formatting time stamps for weibull distribution
kmmoon100 · Nov 3, 2013 · r-help

Hello everyone, I have been using bReeze package for weibull distribution analysis. In this package, there is a function called 'formatTS' for converting time stamps from string to POSIXlt. (http://rgm3.lab.nig.ac.jp/RGM/R_rdfile?f=bReeze...

How can I apply “Sapply” in R with multiple codes in one function?
kmmoon100 · Dec 9, 2013 · r-help

Hello everybody, I am a new R user..(still;;;). I have a simple "sapply" function example for calculating mean and sd of splited data scale. My data contains half hourly wind speed with direction. I want to know daily weibull...

Error message in `fitdistr` function in the MASS package
kmmoon100 · Feb 26, 2014 · r-help

I have one issue at the moment while I am using a function, fitdistr in package MASS. I have 12 years of wind data with 30 min average interval. My data look like below: Time windspeed 1/01/2005 0...

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