c853aa1735
- colheaders doesn't appear in the struct returned from importdata for me. - Add a new error check for empty/malformed files. Review URL: http://webrtc-codereview.appspot.com/318001 git-svn-id: http://webrtc.googlecode.com/svn/trunk@1137 4adac7df-926f-26a2-2b94-8c16560cd09d
55 lines
1.6 KiB
Matlab
55 lines
1.6 KiB
Matlab
function parsed = parseLog(filename)
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%
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% parsed = parseLog(filename)
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% Parses a DataLog text file, with the filename specified in the string
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% filename, into a struct with each column name as a field, and with the
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% column data stored as a vector in that field.
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%
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% Arguments
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%
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% filename: A string with the name of the file to parse.
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%
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% Return value
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%
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% parsed: A struct containing each column parsed from the input file
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% as a field and with the column data stored as a vector in that
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% field.
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%
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% Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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%
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% Use of this source code is governed by a BSD-style license
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% that can be found in the LICENSE file in the root of the source
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% tree. An additional intellectual property rights grant can be found
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% in the file PATENTS. All contributing project authors may
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% be found in the AUTHORS file in the root of the source tree.
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table = importdata(filename, ',', 1);
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if ~isstruct(table)
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error('Malformed file, possibly empty or lacking data entries')
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end
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colheaders = table.textdata;
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if length(colheaders) == 1
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colheaders = regexp(table.textdata{1}, ',', 'split');
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end
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parsed = struct;
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i = 1;
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while i <= length(colheaders)
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% Checking for a multi-value column.
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m = regexp(colheaders{i}, '([\w\t]+)\[(\d+)\]', 'tokens');
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if ~isempty(m)
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% Parse a multi-value column
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n = str2double(m{1}{2}) - 1;
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parsed.(strrep(m{1}{1}, ' ', '_')) = table.data(:, i:i+n);
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i = i + n + 1;
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elseif ~isempty(colheaders{i})
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% Parse a single-value column
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parsed.(strrep(colheaders{i}, ' ', '_')) = table.data(:, i);
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i = i + 1;
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else
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error('Empty column');
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end
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end
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