Why does the function call "function [hdr, record] = edfReadOddur( 'tinnaprime.edf',varargin )" give an error?

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Oddur Bjarnason 2017-7-25

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https://ww2.mathworks.cn/matlabcentral/answers/350209-why-does-the-function-call-function-hdr-record-edfreadoddur-tinnaprime-edf-varargin-give

评论： Oddur Bjarnason 2017-7-26

采纳的回答： Geoff Hayes

This is the error message:

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

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Answer 1

Geoff Hayes 2017-7-25

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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.

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Geoff Hayes 2017-7-26

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 2017-7-26

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

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