4k views

### how can I convert a negative log likelihood to likelihood? [duplicate]

how can I convert a negative log likelihood to likelihood between 0 and 1 ? I use HMMs package in R and I keep getting strange results of the log likelihood for example, -48569 ! I need to ...
1k views

### Meaning of Likelihood in layman's terms [duplicate]

Could you explain for me what is "likelihood principle (from R.A. Fisher)" without using any (or too serious) mathematical language? What will be the difference between "it is likely" and "it is ...
1k views

### Posterior and Likelihood probabilities meaning [duplicate]

I am a computer scientist, so I have a background at maths (however limited). I am reading about posterior distribution from here http://en.wikipedia.org/wiki/Posterior_distribution . It says there: ...
437 views

### The likelihood function: Why is it no pdf? [duplicate]

I know that there have already been a lot of questions about why the likelihood is no probability density function and I ve read most of the answers. However, to me the point is still not clear yet ...
197 views

55 views

### Likelihood function vs probability distribution function [duplicate]

I've been reading about Bayesian statistics and data analysis, and constantly see that $\text{posterior} \propto \text{prior} \ \times \text{likelihood}$. I'm familiar with fundamental probability and ...
74k views

### What's the difference between probability and statistics?

What's the difference between probability and statistics, and why are they studied together?
10k views

### What misused statistical terms are worth correcting?

Statistics is everywhere; common usage of statistical terms is, however, often unclear. The terms probability and odds are used interchangeable in lay English despite their well-defined and different ...
6k views

### Why do people use p-values instead of computing probability of the model given data?

Roughly speaking a p-value gives a probability of the observed outcome of an experiment given the hypothesis (model). Having this probability (p-value) we want to judge our hypothesis (how likely it ...
24k views

### What is the reason that a likelihood function is not a pdf?

What is the reason that a likelihood function is not a pdf (probability density function)?