gamma-distribution Questions
2
Solved
With gamma() in R you get output 24 from input 5.
How can I make inverse function which can get output 5 from input 24?
>gamma(5)
24
I found [invgamma] package, but I can’t understand if it is ...
Diffract asked 29/9 at 4:11
3
I need to do data fitting to find the distribution of a given data.
I need to find the pdf function of the distribution.
I can use data fitting functions in matlab and python.
It looks like a t...
Starryeyed asked 15/3, 2014 at 15:7
3
Solved
Suppose I have the variable x that was generated using the following approach:
x <- rgamma(100,2,11) + rnorm(100,0,.01) #gamma distr + some gaussian noise
head(x,20)
[1] 0.35135058 0.127842...
Pelota asked 6/8, 2017 at 20:20
1
I have semicontinuous data (many exact zeros and continuous positive outcomes) that I am trying to model. I have largely learned about modeling data with substantial zero mass from Zuur and Ieno's ...
Extrados asked 16/1, 2021 at 0:8
3
Solved
I want to plot a gamma distribution with alpha = 29 (the scale) and beta = 3 (the size). In other words, I want to plot the pdf for Gamma(29,3). How do I do this if according to the documentation, ...
Become asked 10/2, 2017 at 3:24
5
Can anyone help me out in fitting a gamma distribution in python? Well, I've got some data : X and Y coordinates, and I want to find the gamma parameters that fit this distribution... In the Scipy ...
Torpor asked 24/5, 2010 at 10:18
3
Solved
Color space. Well, everybody knows about RGB: three values normalized in the range [0.0,1.0], which have the meaning of the intensity of the color components Red Green Blue; this intensity is meant...
Rodolforodolph asked 18/6, 2011 at 17:52
1
I am comparing GLM output from R and SAS of a model with a Gamma distribution. The point estimations are identical, but they have different estimation of the standard error and therefore different ...
Misdeed asked 15/6, 2017 at 22:28
2
Intro
I'm trying to construct a GLM that models the quantity (mass) of eggs the specimens of a fish population lays depending on its size and age.
Thus, the variables are:
eggW: the total mass...
Cuspidate asked 21/6, 2017 at 10:1
2
Solved
In order to sample from an inverse gamma distribution in R, is the following the correct way to do it:
#I want to sample an inverse-gamma(a,b)
a = 4
b = 9
x = 1/rgamma(1,a,b)
Ditter asked 23/8, 2013 at 5:27
2
Solved
I have a problem with fitdistr{MASS} function in R. I have this vector:
a <- c(26,73,84,115,123,132,159,207,240,241,254,268,272,282,300,302,329,346,359,367,375,378, 384,452,475,495,503,531,543,...
Corticosteroid asked 12/4, 2013 at 15:3
2
Solved
I want to fit a gamma distribution to my data, which I do using this
import scipy.stats as ss
import scipy as sp
import numpy as np
import os
import matplotlib.pyplot as plt
alpha = []
beta = []
...
Autocatalysis asked 9/9, 2013 at 16:58
1
Solved
For a classification task I want to fit a gamma distribution to two pair of data: Distance population within class and between class. This is to determine the theoretical False Accept and False Rej...
Manvil asked 12/8, 2013 at 15:3
3
Solved
What is the easiest way to get a gamma distributed random variable in C++? Boost seems to have this functionality, but it is not clear for me how to use it.
Fellah asked 31/3, 2011 at 12:39
1
Solved
I'm trying to use the Gamma distribution from boost::math but it looks like it isn't possible to use it with boost::variate_generator. Could someone confirm that? Or is there a way to use it.
I di...
Expertize asked 26/3, 2010 at 20:21
1
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