StepMemtestAbf: Calculate membrane properties from a step pulse membrane...

In Crystal-YWu/abftools: ABF Tools: Toolbox for Visualising and Analysing Electrophysiology ABF2 Data

Description

Calculate membrane properties from a step pulse membrane test.

Usage

StepMemtestAbf(abf, intv_charge = NULL, episode = NULL,
  epoch = FindMemtestEpoch(abf, dac = dac, type = "step"),
  dac = GetWaveformEnabledDAC(abf),
  current_channel = GetFirstCurrentChan(abf), max_iter = 10L,
  report_all = TRUE)

Arguments

abf	an abf object.
intv_charge	interval of the CHARGING period.
episode	episodes to calculate membrane properties.
epoch	epoch of the step pulse.
dac	DAC channel of Vcmd
current_channel	current channel.
max_iter	maximum iterations.
report_all	whether to report all calculated episodes or a best fitted one, useful for manual inspection.

Details

This function calculates membreane properties given a proper step pulse is applied and recorded in the abf object. Usually all arguments can be determined automatically. By default episode is determined by FindStepEpisode(), see help for more details.

Please also notice that all unit prefixes are converted to "1", thus the returned properties calculated are:

Cm: membrane capacitance (in Farad)

Rs: series resistance (in Ohms)

Rm: membrane resistance (in Ohms)

I0: Max charging current (in A)

Is: Steady current (in A)

tao: RC time constant (in s)

Value

a data.frame

Crystal-YWu/abftools documentation built on May 10, 2019, 8:22 a.m.