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CLASS ndi.daq.reader.mfdaq.intan

NDI_DAQREADER_MFDAQ_INTAN - Device driver for Intan Technologies RHD file forma

This class reads data from Intan Technologies .RHD file format.

Intan Technologies: http://intantech.com/

Documentation for ndi.daq.reader.mfdaq.intan
   doc ndi.daq.reader.mfdaq.intan

Superclasses

ndi.daq.reader.mfdaq, ndi.daq.reader, ndi.ido, ndi.documentservice

Properties

Property Description
identifier

Methods

Method Description
epochclock return the ndi.time.clocktype objects for an epoch
eq tests whether 2 ndi.daq.reader objects are equal
filenamefromepochfiles return the file name that corresponds to the RHD file, or directory in case of directory
getchannelsepoch List the channels that are available on this Intan device for a given set of files
id return the identifier of an ndi.ido object
intan Create a new NDI_DEVICE_MFDAQ_INTAN object
intanheadertype2mfdaqchanneltype Convert between Intan headers and the ndi.daq.reader.mfdaq channel types
intanname2mfdaqname Converts a channel name from Intan native format to ndi.daq.reader.mfdaq format.
mfdaqchanneltype2intanchanneltype convert the channel type from generic format of multifuncdaqchannel
mfdaqchanneltype2intanfreqheader Return header name with frequency information for channel type
mfdaqchanneltype2intanheadertype Convert between the ndi.daq.reader.mfdaq channel types and Intan headers
ndi_unique_id Generate a unique ID number for NDI projects
newdocument create a new ndi.document for an ndi.daq.reader object
readchannels_epochsamples read the data based on specified channels
readevents_epochsamples read events, markers, and digital events of specified channels for a specified epoch
readevents_epochsamples_native read events or markers of specified channels for a specified epoch
samplerate GET THE SAMPLE RATE FOR SPECIFIC EPOCH AND CHANNEL
searchquery create a search for this ndi.daq.reader object
t0_t1 return the t0_t1 (beginning and end) epoch times for an epoch
verifyepochprobemap Verifies that an EPOCHPROBEMAP is compatible with a given device and the data on disk

Methods help

epochclock - return the ndi.time.clocktype objects for an epoch

EC = EPOCHCLOCK(NDI_DAQREADER_MFDAQ_OBJ, EPOCH_NUMBER)

Return the clock types available for this epoch as a cell array of ndi.time.clocktype objects (or sub-class members).

For the generic ndi.daq.reader.mfdaq, this returns a single clock type 'dev_local'time';

See also: ndi.time.clocktype

Help for ndi.daq.reader.mfdaq.intan/epochclock is inherited from superclass NDI.DAQ.READER.MFDAQ


eq - tests whether 2 ndi.daq.reader objects are equal

B = EQ(NDI_DAQREADER_OBJ1, NDI_DAQREADER_OBJ2)

Examines whether or not the ndi.daq.reader objects are equal.

Help for ndi.daq.reader.mfdaq.intan/eq is inherited from superclass NDI.DAQ.READER


filenamefromepochfiles - return the file name that corresponds to the RHD file, or directory in case of directory

[FILENAME, PARENTDIR, ISDIRECTORY] = FILENAMEFROMEPOCHFILES(NDI_DAQREADER_MFDAQ_INTAN_OBJ, FILENAME_ARRAY)

Examines the list of filenames in FILENAME_ARRAY (cell array of full path file strings) and determines which one is an RHD data file. If the 1-file-per-channel mode is used, then PARENTDIR is the name of the directory that holds the data files and ISDIRECTORY is 1.


getchannelsepoch - List the channels that are available on this Intan device for a given set of files

CHANNELS = GETCHANNELSEPOCH(NDI_DAQREADER_MFDAQ_INTAN_OBJ, EPOCHFILES)

Returns the channel list of acquired channels in this session

CHANNELS is a structure list of all channels with fields:


'name' | The name of the channel (e.g., 'ai1') 'type' | The type of data stored in the channel | (e.g., 'analogin', 'digitalin', 'image', 'timestamp')


id - return the identifier of an ndi.ido object

IDENTIFIER = ID(NDI_ID_OBJ)

Returns the unique identifier of an ndi.ido object.

Help for ndi.daq.reader.mfdaq.intan/id is inherited from superclass NDI.IDO


intan - Create a new NDI_DEVICE_MFDAQ_INTAN object

D = ndi.daq.reader.mfdaq.intan(NAME,THEFILENAVIGATOR)

Creates a new ndi.daq.reader.mfdaq.intan object with name NAME and associated filenavigator THEFILENAVIGATOR.


intanheadertype2mfdaqchanneltype - Convert between Intan headers and the ndi.daq.reader.mfdaq channel types

CHANNELTYPE = INTANHEADERTYPE2MFDAQCHANNELTYPE(INTANCHANNELTYPE)

Given an Intan header file type, returns the standard ndi.daq.reader.mfdaq channel type


intanname2mfdaqname - Converts a channel name from Intan native format to ndi.daq.reader.mfdaq format.

MFDAQNAME = INTANNAME2MFDAQNAME(ndi.daq.reader.mfdaq.intan, MFDAQTYPE, NAME)

Given an Intan native channel name (e.g., 'A-000') in NAME and a ndi.daq.reader.mfdaq channel type string (see NDI_DEVICE_MFDAQ), this function produces an ndi.daq.reader.mfdaq channel name (e.g., 'ai1').


mfdaqchanneltype2intanchanneltype - convert the channel type from generic format of multifuncdaqchannel

to the specific intan channel type

 INTANCHANNELTYPE = MFDAQCHANNELTYPE2INTANCHANNELTYPE(CHANNELTYPE)

 the intanchanneltype is a string of the specific channel type for intan

mfdaqchanneltype2intanfreqheader - Return header name with frequency information for channel type

HEADERNAME = MFDAQCHANNELTYPE2INTANFREQHEADER(CHANNELTYPE)

Given an NDI_DEV_MFDAQ channel type string, this function returns the associated fieldname


mfdaqchanneltype2intanheadertype - Convert between the ndi.daq.reader.mfdaq channel types and Intan headers

INTANCHANHEADERTYPE = MFDAQCHANNELTYPE2INTANHEADERTYPE(CHANNELTYPE)

Given a standard ndi.daq.reader.mfdaq channel type, returns the name of the type as indicated in Intan header files.


ndi_unique_id - Generate a unique ID number for NDI projects

ID = NDI_UNIQUE_ID

Generates a unique ID character array based on the current time and a random number. It is a hexidecimal representation of the serial date number in UTC Leap Seconds time. The serial date number is the number of days since January 0, 0000 at 0:00:00. The integer portion of the date is the whole number of days and the fractional part of the date number is the fraction of days.

ID = [NUM2HEX(SERIAL_DATE_NUMBER) '_' NUM2HEX(RAND)]

See also: NUM2HEX, NOW, RAND

Help for ndi.daq.reader.mfdaq.intan.ndi_unique_id is inherited from superclass NDI.IDO


newdocument - create a new ndi.document for an ndi.daq.reader object

DOC = NEWDOCUMENT(NDI_DAQREADER_OBJ)

Creates an ndi.document object DOC that represents the ndi.daq.reader object.

Help for ndi.daq.reader.mfdaq.intan/newdocument is inherited from superclass NDI.DAQ.READER


readchannels_epochsamples - read the data based on specified channels

DATA = READ_CHANNELS(MYDEV, CHANNELTYPE, CHANNEL, EPOCHFILES ,S0, S1)

CHANNELTYPE is the type of channel to read (cell array of strings, one per channel)

CHANNEL is a vector of the channel numbers to read, beginning from 1

EPOCH is set of epoch files

DATA is the channel data (each column contains data from an indvidual channel)


readevents_epochsamples - read events, markers, and digital events of specified channels for a specified epoch

[DATA] = READEVENTS_EPOCHSAMPLES(MYDEV, CHANNELTYPE, CHANNEL, EPOCHFILES, T0, T1)

CHANNELTYPE is the type of channel to read ('event','marker', 'dep', 'dimp', 'dimn', etc). It must be a a cell array of strings.

CHANNEL is a vector with the identity of the channel(s) to be read.

EPOCH is the epoch number or epochID

DATA is a two-column vector; the first column has the time of the event. The second column indicates the marker code. In the case of 'events', this is just 1. If more than one channel is requested, DATA is returned as a cell array, one entry per channel.

TIMEREF is an ndi.time.timereference with the NDI_CLOCK of the device, referring to epoch N at time 0 as the reference.

Help for ndi.daq.reader.mfdaq.intan/readevents_epochsamples is inherited from superclass NDI.DAQ.READER.MFDAQ


readevents_epochsamples_native - read events or markers of specified channels for a specified epoch

[DATA] = READEVENTS_EPOCHSAMPLES_NATIVE(MYDEV, CHANNELTYPE, CHANNEL, EPOCHFILES, T0, T1)

CHANNELTYPE is the type of channel to read ('event','marker', etc). It must be a string (not a cell array of strings).

CHANNEL is a vector with the identity of the channel(s) to be read.

EPOCH is the epoch number or epochID

DATA is a two-column vector; the first column has the time of the event. The second column indicates the marker code. In the case of 'events', this is just 1. If more than one channel is requested, DATA is returned as a cell array, one entry per channel.

TIMEREF is an ndi.time.timereference with the NDI_CLOCK of the device, referring to epoch N at time 0 as the reference.

Help for ndi.daq.reader.mfdaq.intan/readevents_epochsamples_native is inherited from superclass NDI.DAQ.READER.MFDAQ


samplerate - GET THE SAMPLE RATE FOR SPECIFIC EPOCH AND CHANNEL

SR = SAMPLERATE(DEV, EPOCHFILES, CHANNELTYPE, CHANNEL) CHANNELTYPE can be either a string or a cell array of strings the same length as the vector CHANNEL. If CHANNELTYPE is a single string, then it is assumed that that CHANNELTYPE applies to every entry of CHANNEL.

SR is the list of sample rate from specified channels


searchquery - create a search for this ndi.daq.reader object

SQ = SEARCHQUERY(NDI_DAQREADER_OBJ)

Creates a search query for the ndi.daq.reader object.

Help for ndi.daq.reader.mfdaq.intan/searchquery is inherited from superclass NDI.DAQ.READER


t0_t1 - return the t0_t1 (beginning and end) epoch times for an epoch

T0T1 = T0_T1(NDI_EPOCHSET_OBJ, EPOCHFILES)

Return the beginning (t0) and end (t1) times of the epoch EPOCH_NUMBER in the same units as the ndi.time.clocktype objects returned by EPOCHCLOCK.

The abstract class always returns {[NaN NaN]}.

See also: ndi.time.clocktype, EPOCHCLOCK


verifyepochprobemap - Verifies that an EPOCHPROBEMAP is compatible with a given device and the data on disk

B = VERIFYEPOCHPROBEMAP(NDI_DAQREADER_MFDAQ_INTAN_OBJ, EPOCHPROBEMAP, EPOCHFILES)

Examines the NDI_EPOCHPROBEMAP_DAQREADER EPOCHPROBEMAP and determines if it is valid for the given device with epoch files EPOCHFILES.

See also: ndi.daq.reader, NDI_EPOCHPROBEMAP_DAQREADER