About 1,060,000 results
Open links in new tab
  1. probability - Distribution of Event Times in a Poisson Process ...

    Sep 5, 2024 · Normally, everyone talks about the distribution of interarrival times in a Poisson Process are Exponential ... but what about the distribution of the actual event times?

  2. How to choose between poisson and binomial distributions

    The Poisson distribution is easier to work with than the binomial distribution. It is easier to compute the pdf and especially the cdf. Its generating functions have nice properties. Etc. Second, in applications, …

  3. Why is Poisson regression used for count data?

    Oct 4, 2013 · Poisson distributed data is intrinsically integer-valued, which makes sense for count data. Ordinary Least Squares (OLS, which you call "linear regression") assumes that true values are …

  4. Poisson or quasi poisson in a regression with count data and ...

    I have count data (demand/offer analysis with counting number of customers, depending on - possibly - many factors). I tried a linear regression with normal errors, but my QQ-plot is not really goo...

  5. Relationship between poisson and exponential distribution

    Note, that a poisson distribution does not automatically imply an exponential pdf for waiting times between events. This only accounts for situations in which you know that a poisson process is at …

  6. An intuitive explanation of the Poisson equation?

    Dec 8, 2023 · Poisson Equation: The Poisson equation, $$\nabla^2 u = f$$, describes how a scalar function (u) changes in response to a given "influence" represented by (f). It's like describing how a …

  7. What is the correct inter-arrival time distribution in a Poisson process?

    What is the correct inter-arrival time distribution in a Poisson process? Ask Question Asked 13 years, 4 months ago Modified 9 years, 2 months ago

  8. Deriving Newton’s gravitational potential through Poisson’s equation ...

    Nov 30, 2023 · 0 I am trying to derive Newton’s gravitational potential $\phi_N = -\frac {GM} {r}$ from Poisson’s equation $\Delta \phi_N = 4\pi G\rho$, where G is the gravitational constant, M is the mass …

  9. r - Rule of thumb for deciding between Poisson and negative binomal ...

    Nov 6, 2023 · The Poisson distribution implies so a one-sample test can provide a -value for testing Poisson vs. negative binomial. Another test for equidispersion is the Lagrange Multiplier which …

  10. Invert Poisson distribution to get x based on probability

    Nov 11, 2022 · The Poisson distribution function is given by: f(x) = P(X=x) = (e^(-λ) * λx )/x! I am writing some code and need to determine the number of events that will happen in a time step. Of course …