struct Header

recordname::String - A string of characters that identify the record. The record name numberof_segments::Union{Nothing,UInt32}

• If the field is present, it indicates that the record is a multi-segment record containing the specified number of segments, and that the header file contains segment specification lines rather than signal specification lines.

numberofsignals::UInt32 - the number of signals samplingfrequency::Float32 units samples/second/signal counterfrequency::Float32 basecountervalue::Float32 samplespersignal::Union{Nothing,UInt32} basetime::Union{Nothing,Time} basedate::Union{Nothing,Date} parentdir::String signal_specs::Vector{SignalSpecLine}

Example header (100.hea in sample-data directory of repo) ––––-START OF FILE–––––-

unnecessary comment

100 2 360 650000 <–-all records up to signal_specs 100.dat 212 200 11 1024 995 -22131 0 MLII

100.dat 212 200 11 1024 1011 20052 0 V5

69 M 1085 1629 x1

Aldomet, Inderal

––––-END OF FILE––––––-

signalspecline(h::Header)

a getter method for the signalspecline field in the header

read_binary(io::IO, header::Header, ::WfdbFormat{<:AbstractStorargeFormat})

reads a WaveformDB sample file io - IOBuffer for the file ("eg 100.dat") header - header struct containing the information necessary to decode the file F - the format that the file is in

function write_binary(io::IO, header::Header, samples::Vector{Int32}, ::WfdbFormat{<:AbstractStorageFormat})

reads a WaveformDB sample file io - IOBuffer to write to header - header struct containing the information necessary to encode the file F - the WaveformDB format to encode the output as

wsignal(header::Header, signal::Vector{Int32})

writes a signal file to disk. All of the information required to write the file needs to be specified by the header