Added code for making sequences

jp_makesequences.m

@@ -0,0 +1,70 @@
+function seq = jp_makesequences(digitList, numSequences, sequenceLength, repeatProbability)
+%JP_MAKESEQUENCES Make non-repeating numeric sequences, 1 per row.
+%
+% NB: Setting repeatProbability to 0 does not mean there is a 0% chance of
+% a repeat; it simply turns off the function. I.e., if repeatProbability is
+% set to 0, each digit is chosen at random from digitList.
+
+if nargin < 1 || isempty(digitList)
+    error('Must specify list of digits (e.g., [2 3 4 5].');
+end
+
+if nargin < 2 || isempty(numSequences)
+    numSequences = 5;
+end
+
+if nargin < 3 || isempty(sequenceLength)
+    sequenceLength = 9;
+end
+
+if nargin < 4 || isempty(repeatProbability)
+    repeatProbability = 0;
+end
+
+
+verbose = 1;
+
+seq = zeros(numSequences, sequenceLength);
+
+if verbose > 0
+    fprintf('\nGenerating sequences\n\n');
+end
+
+for seqCounter = 1:numSequences
+
+    if verbose > 0; fprintf('Sequence %04i/%04i...', seqCounter, numSequences); end        
+
+    alreadyExists = 1;
+
+    while alreadyExists==1
+
+        thisSeq = zeros(1, sequenceLength);
+
+        % start with a random digit
+        thisSeq(1) = digitList(round((rand * (length(digitList)-1))) + 1);
+
+        for digitCounter = 2:sequenceLength
+            if repeatProbability > 0
+                if rand < repeatProbability
+                    thisSeq(digitCounter) = thisSeq(digitCounter-1);
+                else
+                    thisSeq(digitCounter) = digitList(round((rand * (length(digitList)-1))) + 1);
+                end
+            else
+                thisSeq(digitCounter) = digitList(round((rand * (length(digitList)-1))) + 1);
+            end
+        end % going through digits in this sequence
+
+
+
+        if ~ismember(thisSeq, seq, 'rows')
+            alreadyExists = 0;
+        end
+
+    end % checking alreadyExists in while loop
+
+    seq(seqCounter,:) = thisSeq;
+
+    if verbose > 0; fprintf('done.\n'); end
+
+end % going through numSequences

jp_makesequences_wrapper.m

@@ -0,0 +1,22 @@
+% Relies on jp_makesequences from http://github.com/jpeelle/jp_matlab
+
+
+% Make two sets of patterns, "easy" (higher likelihood of repeating numbers)
+% and "hard" (each number in the sequence chosen at random.
+
+
+digitList = [2:5];
+numSequences = 500;
+sequenceLength = 9;
+repeatProbability = .3;
+
+
+easySequences = jp_makesequences(digitList, numSequences, sequenceLength, repeatProbability);
+dlmwrite('~/easySequences.tsv', easySequences, '\t');
+
+
+repeatProbability = [];
+
+hardSequences = jp_makesequences(digitList, numSequences, sequenceLength, repeatProbability);
+dlmwrite('~/hardSequences.tsv', easySequences, '\t');
+