feller.read.spikes: Read in a directory of spike times from Marla Feller and...

In sje30/sjemea: Multi electrode analysis

Read in a directory of spike times from Marla Feller and create a "spikes" data structure.

Description

Marla Feller has provided MEA data from an hexagonal array. The data from each electrode is stored in a separate file. This function reads those text files and creates a "spikes" data structure.

Usage

feller.read.spikes(filename, ids = NULL, time.interval = 1, beg = NULL,
  end = NULL)

Arguments

filename	Name of the text file to be read in.
ids	Which electrodes should be kept.
time.interval	How often to estimate the firing rate.
beg	Start time of the recording.
end	End time of the recording.

Details

The data from each electrode is not in seconds; divide by 20000 to get the time in seconds.

Value

Return the data structure 's'.

Author(s)

Stephen Eglen

See Also

jay.read.spikes sanger.read.spikes

Examples

data.file <- system.file('examples', '2002-11-26-1', package='sjemea')
s <- feller.read.spikes(data.file)
ejcmealayout.check()
fourplot(s)

## This file contains the picture of the array for comparison
system.file("examples/ejc_ElectrodeNumbering.jpg",package="sjemea")

## next two examples show electrodes being rejected/accepted.
s <- feller.read.spikes(data.file, ids=c('-', 'a7a', 'b1a', 'h2a'))
s <- feller.read.spikes(data.file, ids=c(     'a7a', 'b1a', 'h2a'))

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