Why does the function call "function [hdr, record] = edfReadOddur( 'tinnaprim​e.edf',var​argin )" give an error?

This is the error message:

Error: File: edfReadOddur.m Line: 1 Column: 40 Unexpected MATLAB expression.

Answer 1

[Geoff Hayes]

Oddur - if your function signature (the first line in edfReadOddur.m) is written as

 function [hdr, record] = edfReadOddur( 'tinnaprime.edf',varargin )

then the problem is that you are trying to set the first parameter of your function as a string rather than as an input parameter/variable. Your signature should be defined as

 function [hdr, record] = edfReadOddur( filename, varargin)

and you would call the above (from the command line or another piece of code) and pass in 'tinnaprime.edf' to populate/set the filename parameter

 >> edfReadOddur('tinnaprime.edf')

See Function Basics for more details.

[Oddur Bjarnason]

Dear Geoff,

I have been trying to get edfRead by Brett Shoelson to work with my Matlab - without success. His function call is

function [hdr, record] = edfRead('tinnaprime.edf', varargin)

he insists on the single quotes but this gives me the following error message:

Error: File: edfread.m Line: 1 Column: 34 Unexpected MATLAB expression.

A tried to write to Brett a while ago but he has not answered me as yet.

I have followed your suggestions with:

 function [hdr, record] = edfRead( tinna, varargin)

and command

edfRead('tinnaprime.edf')'

But I get the error message

"Error using edfRead (line 126) No such file or directory"

The lines are:

[fid,msg] = fopen(tinna,'r'); if fid == -1 error(msg) end

The file does exist and is in the Matlab path.

Can you help me?

[Geoff Hayes]

Oddur - from edfRead at FEX, the function signature is

 function [hdr, record] = edfread(fname, varargin)

so it isn't clear to me why you think that it should be

 function [hdr, record] = edfRead('tinnaprime.edf', varargin)

You would call this function as

 [hdr, record] = edfRead('tinnaprime.edf)

(perhaps passing more input variables as described along with this FEX submission.

As for the error, No such file or directory, try passing the full path and file name as the input parameter to edfRead.

[Oddur Bjarnason]

Again I tried to take your suggestions into account. I used the following function signature:

function [hdr, record] = edfReadUntilDone(tinna, varargin)

I called the function with:

edfReadUntilDone('C:\Users\Oddur\Documents\Emotiv Files\Tinna\tinnaprime.edf')

I got the following answer:

ans =

struct with fields:

            ver: 0
      patientID: 'tinna                                                                           '
       recordID: '2                                                                               '
      startdate: '01.05.16'
      starttime: '20.18.56'
          bytes: 10496
        records: 636
       duration: 1
             ns: 40
          label: {1×40 cell}
     transducer: {1×40 cell}
          units: {1×40 cell}
    physicalMin: [0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0]
    physicalMax: [1×40 double]
     digitalMin: [0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0]
     digitalMax: [1×40 double]
      prefilter: {1×40 cell}
        samples: [1×40 double]
      frequency: [1×40 double]

From this I gather that the file has been loaded. I do unfortunately not get any data records.

The original question that I posed has now been answered so I shall accept your answer. The rest of the problems I have with the function I shall take up with Brett.

Thank you.

Oddur