diff toolboxes/FullBNT-1.0.7/KPMtools/partitionData.m @ 0:e9a9cd732c1e tip

first hg version after svn
author wolffd
date Tue, 10 Feb 2015 15:05:51 +0000
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolboxes/FullBNT-1.0.7/KPMtools/partitionData.m	Tue Feb 10 15:05:51 2015 +0000
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+function  varargout = partitionData(Ndata, varargin)
+% PARTITIONDATA Partition a vector of indices into random sets
+% [a,b,c,...] = partitionData(N, 0.3, 0.2, 0.5, ...)
+%
+% Examples:
+% [a,b,c]=partitionData(105,0.3,0.2,0.5);
+% a= 1:30, b=32:52, c=52:105 (last bin gets all the left over)
+
+Npartitions = length(varargin);
+perm = randperm(Ndata);
+%perm = 1:Ndata;
+ndx = 1;
+for i=1:Npartitions
+  pc(i) = varargin{i};
+  Nbin(i) = fix(Ndata*pc(i));
+  low(i) = ndx;
+  if i==Npartitions
+    high(i) = Ndata;
+  else
+    high(i) = low(i)+Nbin(i)-1;
+  end
+  varargout{i} = perm(low(i):high(i));
+  ndx = ndx+Nbin(i);
+end
+