isi.gamma: Returns log(shape) and log(rate) of gamma distributions...

In sje30/sjemea: Multi electrode analysis

Returns log(shape) and log(rate) of gamma distributions fitted to ISI of the spike train. The spike train is split into chunks and gamma distribution for each of them is estimated using maximum-likelihood. The result is a mean of log of the estimated gamma distributions.

Description

The rate approximates mean firing rate, shape is a measure of firing regularity: - for firing in bursts: log(shape) < 1 - for Poisson distributed firing: log(shape) = 1 - for firing with peak of ISI: log(shape) > 1

Usage

isi.gamma(spike.train, chunk.length = 100)

Arguments

spike.train	vector of spike times
chunk.length	length of chunks used for estimation

Details

Calculation of the measure adopted from: Y. Mochizuki et al., Similarity in neuronal firing regimes across mammalian species. Journal of Neuroscience (2016) in press.

Value

list with log(shape) and log(rate) with the means of fitted gamma distributions

sje30/sjemea documentation built on May 21, 2024, 5:44 a.m.