feller.read.spikes {sjemea} | R Documentation

## 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)

    ## 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'))

[Package sjemea version 0.23 Index]