|
| From: | Nicholas Jankowski |
| Subject: | Re: Problem with parse function |
| Date: | Thu, 12 Nov 2015 12:50:11 -0500 |
Dear All,
I am using Octave trying to run a script written in Matlab.
I am experiencing issues with the parse
In the script I am calling a function enabling me to read specific .cwa files (accelerometry) – please see below.
In Matlab I would normally use this code to get some information about the file:
data = "" ‘info’,1);
In Octave it works if I remove the ‘’
data = "" info,1);
But unfortunately if I try to read the acceleration data of the file between 2 time frames, I get an error (error: 'startTime' undefined near line 1 column 28). I have tried with and without ‘’, but it seems there is a problem that does not allow even the input to be parsed.
data_ss=AX3_readFile(File, startTime, datenum(start), stopTime, datenum(stop));
Could you please give me any advice on this?
Many thanks and Best Regards,
Silvia
function data = "" varargin)
%
% DATA = "" [OPTIONS])
%
% Reads in binary file as produced by AX3 accelerometer. Returns a
% struct filled with data from different modalities (ACC, LIGHT,
% TEMP). Relies on two external mex-functions (parseValueBlock.c,
% parseDate.c) that have to be compiled using the mex interface.
%
% Input arguments:
% FILENAME Path to AX3 sensor file
%
% OPTIONS:
%
% 'info' If set to 1, just reads information
% from file. Such as start time of
% logging, sensor id, etc. (see example
% below)
%
% 'validPackets' A Nx3 matrix containing pre-read valid
% packet locations, timestamps and
% timestamp offsets (produced by
% info-mode). Providing this will heavily
% improve runtime!
%
% 'startTime' Use this combined with 'stopTime' for
% sliced reading. I.e. read all samples
% from startTime to stopTime. Has to be
% given in Matlab-time format (see
% example below)
%
% 'stopTime' See above.
%
% 'modality' A three element vector [1, 1, 1] that
% indicates which sensor modalities to
% extract. Order is ACC, LIGHT, TEMP. To
% extract ACC and TEMP use [1, 0, 1].
%
% 'verbose' Print out debug messages about
% progress.
%
% 'useC' Heavily speed up parsing of samples and
% timestamps by relying on external
% c-code (parseValueBlock.c,
% parseDate.c). Requires compilation
% using mex-interface or pre-compiled
% binaries (.mexXXX files).
%
% EXAMPLES:
%
% Reading file information:
% >> fileinfo = AX3_readFile('foobar.cwa', 'info', 1, 'useC', 1)
% fileinfo =
% validPackets: [991997x3 double]
% start: [1x1 struct]
% stop: [1x1 struct]
% deviceId: 33
% sessionId: 0
% >> fileinfo.start
% ans =
% mtime: 7.3492e+05
% str: '17-Feb-2012 12:56:25'
%
% subsequent read of slice using pre-read packet info:
% >> data = "" ...
% 'validPackets', fileinfo.validPackets, ...
% 'startTime', datenum('19-Feb-2012 00:00:00'), ...
% 'stopTime', datenum('20-Feb-2012 00:00:00'));
%
% >> data = "">
% validPackets: [73059x3 double]
% ACC: [8766736x4 double]
% LIGHT: [73059x2 double]
% TEMP: [73059x2 double]
%
%
% v0.1
% Nils Hammerla, 2012 <address@hidden>
%
%
% Copyright (c) 2012, Newcastle University, UK.
% All rights reserved.
%
% Redistribution and use in source and binary forms, with or without
% modification, are permitted provided that the following conditions are met:
% 1. Redistributions of source code must retain the above copyright notice,
% this list of conditions and the following disclaimer.
% 2. Redistributions in binary form must reproduce the above copyright notice,
% this list of conditions and the following disclaimer in the documentation
% and/or other materials provided with the distribution.
%
% THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
% AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
% IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
% ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
% LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
% CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
% SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
% INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
% CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
% ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
% POSSIBILITY OF SUCH DAMAGE.
%
% TODO:
% - Implement binary search through packet-space capable of
% handling broken packages (remove need for pre-reading
% packages)
% - Add proper use of checksums
% - Write object oriented version capable of handling different
% versions of format (past and future)
% parse arguments
p = inputParser;
% define optional arguments with default values
addOptional(p,'info',0,@isnumeric); % just get file-info?
addOptional(p,'validPackets',0,@isnumeric); % pre-read packet info
addOptional(p,'startTime',-1,@isnumeric); % start time (matlab)
addOptional(p,'stopTime',-1,@isnumeric); % stop time (matlab)
addOptional(p,'verbose',0,@isnumeric); % print out progress
addOptional(p,'useC',0,@isnumeric); % use external c-code
% % for speed.
addOptional(p,'modality',[1 1 1], @isnumeric); % specify modality
% [ACC LIGHT TEMP]
parse(p,varargin{:});
% dispatch
if p.Results.info > 0,
data = "" p.Results);
else
data = "" p.Results);
end
end
--
Silvia Del Din, PhD, MIET, MIEEE, ISPGR
Research Associate
| [Prev in Thread] | Current Thread | [Next in Thread] |