Linked Questions

0 votes
1 answer
311 views

Weibull analysis [duplicate]

I need to get the maximum likelihood estimate of a two-parameter Weibull distribution. I have tried it on my own but everything tends towards using a Newton-Raphson iterative method which I am not ...
user39660's user avatar
205 votes
4 answers
296k views

How to determine which distribution fits my data best?

I have a dataset and would like to figure out which distribution fits my data best. I used the fitdistr() function to estimate the necessary parameters to ...
tobibo's user avatar
  • 2,155
35 votes
3 answers
31k views

What distribution does my data follow?

Let us say that I have 1000 components and I have been collecting data on how many times these log a failure and each time they logged a failure, I am also keeping track of how long it took my team to ...
Legend's user avatar
  • 4,532
5 votes
1 answer
10k views

R - Weibull Distribution Parameters (Shape and Scale) - Confidence Intervals

I am wondering how you would obtain Scale and Shape parameter values on a Weibull Distribution's Confidence Interval bands (95% CI). The following post nicely illustrates confidence interval bands ...
esh88's user avatar
  • 63
4 votes
1 answer
4k views

Identifying parameters for Weibull distribution from research paper

I am reading this paper: http://research.microsoft.com/en-us/um/people/ryenw/papers/LiuSIGIR2010.pdf I wish to use it to model web dwell time. I am not extremely well educated in the realm of stats....
Ken - Enough about Monica's user avatar
4 votes
2 answers
11k views

How can I recreate a Weibull distribution given mean and standard deviation and the shape and scale parameters are unknown?

Figure 2 is a Weibull distribution of three different wind farms in Canada. These 3 probability distributions were combined in a study to obtain a common wind speed model. I will be using this common ...
Lara's user avatar
  • 41
3 votes
2 answers
367 views

Getting weirdly small cdf and pdf values for a set of data of 5 members in R

I am doing a Weibull and normal distribution analysis for a set of my data which are : 336256 620316 958846 1007830 1080401 So to avoid putting the whole code here, I refer you directly to the ...
FabioSpaghetti's user avatar
3 votes
1 answer
2k views

Estimating Weibull Distribution parameters by Least Square

I'm working on something about Least square estimation for Weibull distribution. After reviewing this paper, I'm pretty confused by the derivation of least square method. In this paper, the author ...
FantasticAI's user avatar
1 vote
1 answer
1k views

How can I perform weibull analysis on monthly recorded data of wind speeds?

I've read several articles about how to perform Weibull distribution but they all did it with wind speed data in a time series manner (example: recorded data every 10mins and then averaged to every ...
Arvind's user avatar
  • 11
0 votes
0 answers
191 views

how to model hourly wind speed data

I am trying to forecast hourly wind speed (HWS) data in Trinidad and Tobago and I have read in the literature that "Direct application of stochastic models (ARMA & ARIMA models) to HWS series is ...
L N's user avatar
  • 43