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Jacarat I am trying to get the parameters w, lambda_1, lambda_2and pmodel from a mixture in a double exponential model, using a log-likelihood function and a function optimin R as follows this is the code biexpLL <- function(theta, y) {
# define parameters
Andre I am using the plm package for panel data for instrumental variable estimation. However, it seems that computing cluster robust standard errors by using the vcovHC() function is not supported. More specifically, when I use the vcovHC() function, the foll
Andre I am using the plm package for panel data for instrumental variable estimation. However, it seems that computing cluster robust standard errors by using the vcovHC() function is not supported. More specifically, when I use the vcovHC() function, the foll
Andre I am using the plm package for panel data for instrumental variable estimation. However, it seems that computing cluster robust standard errors by using the vcovHC() function is not supported. More specifically, when I use the vcovHC() function, the foll
Andre I am using the plm package for panel data for instrumental variable estimation. However, it seems that computing cluster robust standard errors by using the vcovHC() function is not supported. More specifically, when I use the vcovHC() function, the foll
Andre I am using the plm package for panel data for instrumental variable estimation. However, it seems that computing cluster robust standard errors by using the vcovHC() function is not supported. More specifically, when I use the vcovHC() function, the foll
Andre I am using the plm package for panel data for instrumental variable estimation. However, it seems that computing cluster robust standard errors by using the vcovHC() function is not supported. More specifically, when I use the vcovHC() function, the foll
Mercier I just simulated 100 random observations from a gamma density with alpha (shape parameter) = 5 and lambda (rate parameter) = 5: x=rgamma(100,shape=5,rate=5) Now I want to find maximum likelihood estimates of alpha and lambda with a function that will r
Mercier I just simulated 100 random observations from a gamma density with alpha (shape parameter) = 5 and lambda (rate parameter) = 5: x=rgamma(100,shape=5,rate=5) Now I want to find maximum likelihood estimates of alpha and lambda with a function that will r
Mercier I just simulated 100 random observations from a gamma density with alpha (shape parameter) = 5 and lambda (rate parameter) = 5: x=rgamma(100,shape=5,rate=5) Now I want to find maximum likelihood estimates of alpha and lambda with a function that will r
Simon L I want to fit a step function (two parameters) to some data. The code below doesn't do the job. I wonder round()if there is something wrong with this argument. However, I've also tried dividing the parameters to make small (say 0.001) changes to the pa
will I am trying to validate the MLEs for $\alpha$ , $\beta$ and $\lambda$ obtained for the Logistic-Lomax distribution by Zubair et al. in their paper titled A Study of Logistic-Lomax Distribution when using Dataset 1 . The paper uses the following code to do
Tim I want to estimate the scale, shape and threshold parameters of a 3p Weibull distribution. So far I have done the following: Fitting a 3-parameter Weibull distribution in R with reference to this article function i used EPS = sqrt(.Machine$double.eps)
Tim I want to estimate the scale, shape and threshold parameters of a 3p Weibull distribution. So far I have done the following: Fitting a 3-parameter Weibull distribution in R with reference to this article function i used EPS = sqrt(.Machine$double.eps)
Tim I want to estimate the scale, shape and threshold parameters of a 3p Weibull distribution. So far I have done the following: Fitting a 3-parameter Weibull distribution in R with reference to this article function i used EPS = sqrt(.Machine$double.eps)
Tim I want to estimate the scale, shape and threshold parameters of a 3p Weibull distribution. So far I have done the following: Fitting a 3-parameter Weibull distribution in R with reference to this article function i used EPS = sqrt(.Machine$double.eps)
Tim I want to estimate the scale, shape and threshold parameters of a 3p Weibull distribution. So far I have done the following: Fitting a 3-parameter Weibull distribution in R with reference to this article function i used EPS = sqrt(.Machine$double.eps)
Tim I want to estimate the scale, shape and threshold parameters of a 3p Weibull distribution. So far I have done the following: Fitting a 3-parameter Weibull distribution in R with reference to this article function i used EPS = sqrt(.Machine$double.eps)
Meep I'm trying to investigate the distribution of maximum likelihood estimates for a large number of covariates p and a high dimensional format (meaning p/n (about 1/5 for a sample size of n)). I am generating data which is then statsmodels.api.Logitused to f
Meep I'm trying to investigate the distribution of maximum likelihood estimates for a large number of covariates p and a high dimensional format (meaning p/n (about 1/5 for a sample size of n)). I am generating data which is then statsmodels.api.Logitused to f
Meep I'm trying to investigate the distribution of maximum likelihood estimates for a large number of covariates p and a high dimensional format (meaning p/n (about 1/5 for a sample size of n)). I am generating data which is then statsmodels.api.Logitused to f
Luna I need to find maximum likelihood estimates for binomial data vectors. One like this: binvec <- rbinom(1000, 1, 0.5)
I try to create the function first and then use to optimize optim(). llbinom <- function(theta, x) {return(sum(dbinom(x=x,
Luna I need to find maximum likelihood estimates for binomial data vectors. One like this: binvec <- rbinom(1000, 1, 0.5)
I try to create the function first and then use to optimize optim(). llbinom <- function(theta, x) {return(sum(dbinom(x=x,
Lucas I have some data and want to fit a given psychometric function p. I'm also interested in fit parameters and errors. Using the "classical" approach of the curve_fit function from the scipy package, it is easy to obtain the parameters and errors of p. But
Lucas I have some data and want to fit a given psychometric function p. I'm also interested in fit parameters and errors. Using the "classical" approach of the curve_fit function from the scipy package, it is easy to obtain the parameters and errors of p. But
Lucas I have some data and want to fit a given psychometric function p. I'm also interested in fit parameters and errors. Using the "classical" approach of the curve_fit function from the scipy package, it is easy to obtain the parameters and errors of p. But
username When training a model, we usually use MLE to estimate the model. I know this means that the most likely data for this learned model is our training set. But I want to know if its probability exactly matches 1? Bogatron You are almost right. The likeli
username When training a model, we usually use MLE to estimate the model. I know this means that the most likely data for this learned model is our training set. But I want to know if its probability exactly matches 1? Bogatron You are almost right. The likeli
username When training a model, we usually use MLE to estimate the model. I know this means that the most likely data for this learned model is our training set. But I want to know if its probability exactly matches 1? Bogatron You are almost right. The likeli