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Updated a file loader for Flocking demo

This commit is contained in:
jlizier 2022-09-08 16:14:53 +10:00
parent 26e3cd8afb
commit 28954585f4
2 changed files with 16 additions and 7 deletions
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2
demos/octave/FlockingAnalysis/generateObservations.m
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@ -145,7 +145,7 @@ for fileIndex = 1:length(files)
if (acfTime > maxAcfTime) if (acfTime > maxAcfTime)
maxAcfTime = acfTime; maxAcfTime = acfTime;
end end
fprintf('ACF time of %d from heading %d and speed %d\n', acfTime, maxAcfHeadingsDecayTime, maxAcfSpeedDecayTime); fprintf('ACF time of %d from heading %.2f and speed %.2f\n', acfTime, maxAcfHeadingsDecayTime, maxAcfSpeedDecayTime);
% Initialising destPastSample is only important in terms of ensuring it is a row vector. % Initialising destPastSample is only important in terms of ensuring it is a row vector.
% If we have 3D data, the vector will get padded out to the appropriate length with the first sample below. % If we have 3D data, the vector will get padded out to the appropriate length with the first sample below.

21
demos/octave/FlockingAnalysis/loadBasic2d.m
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@ -1,9 +1,11 @@
function [posX,posY] = loadBasic2d(dataFileName, properties) function [posX,posY] = loadBasic2d(dataFileName, properties)
% This script loads the raw data from a .txt file, % This script loads the raw data from a .txt file,
% preprocesses the data and save it as a .mat file. % preprocesses the data and save it as a .mat file.
% The txt data is assumed to have timestamp in column 1, % The txt data is assumed to have early columns with other data
% then fish 1's X and Y coordinates in columns 2 and 3, % (e.g. a timestamp in column 1), with the fish coordinates
% then fish 2's X and Y coordinates in columns 4 and 5, % starting from properties.loadBasic2d.startColumn (defaults to 2)
% with fish 1's X and Y coordinates in the first of those columns (defaults to 2 and 3),
% then fish 2's X and Y coordinates in the next of those columns (defaults to 4 and 5),
% and so on. % and so on.
%% %%
@ -40,7 +42,14 @@ data = load(dataFileName);
%%% FORMAT DATA IN A MORE CONVENIENT WAY %%% %%% FORMAT DATA IN A MORE CONVENIENT WAY %%%
numFish = (size(data,2)-1) ./ 2; % number of fish (we know it from the raw data) if (nargin == 1) || (~isfield(properties, 'loadBasic2d'))
% Assume the first column is a datestamp
properties.loadBasic2d.startColumn = 2;
end
startCol = properties.loadBasic2d.startColumn;
colsToSkip = startCol - 1;
numFish = (size(data,2)-colsToSkip) ./ 2; % number of fish (we know it from the raw data)
numCycles = size(data,1); % number of time steps (we also know it) numCycles = size(data,1); % number of time steps (we also know it)
fprintf('Number of fish %d and cycles %d\n', numFish, numCycles); fprintf('Number of fish %d and cycles %d\n', numFish, numCycles);
@ -52,8 +61,8 @@ posY = nan(numCycles,numFish);
% fill the position tables % fill the position tables
for f = 1 : numFish % cycle over all fish for f = 1 : numFish % cycle over all fish
% copy into new variables % copy into new variables
posX(:,f) = data(:,2+(f-1)*2); posX(:,f) = data(:,startCol+(f-1)*2);
posY(:,f) = data(:,3+(f-1)*2); posY(:,f) = data(:,startCol+1+(f-1)*2);
end end
% display to check % display to check