120 lines
4.1 KiB
Matlab
120 lines
4.1 KiB
Matlab
classdef CREClass < handle
|
|
properties
|
|
Data; % the data set to get the CRE off
|
|
nBin; %number of bins for the reference
|
|
Monitor=true; %set to true to get intermediat results/figures
|
|
UseHistProxy=true; % set this to get a proxy of the survival function using the hist function
|
|
end
|
|
properties %to be made read only
|
|
CRE
|
|
RB
|
|
P_RB
|
|
end
|
|
properties (Hidden)
|
|
WaitBarHandle;
|
|
end
|
|
properties (Constant,Hidden)
|
|
alpha=1; %needed for the scaled cummulative redual entropy as defined in zografoss. Will be implemented in the future. (I hope)
|
|
beta=1; %they are currently obsolete.
|
|
% FeedBackOptions={'CRE','RB','All'}
|
|
end
|
|
%% constructor
|
|
methods
|
|
function obj = CREClass(varargin)
|
|
obj.Data=[];
|
|
obj.nBin=[];
|
|
%obj.FeedBack={'CRE'};
|
|
if nargin==0;return;end % if no input arguments are given, just create an empty instance
|
|
if ischar(varargin{1}) %assume number value pairs.
|
|
if nargin<=2; error('please use number value pairs' ); end
|
|
for k=2:2:nargin
|
|
switch lower(varargin{k-1})
|
|
case {'ref','data'}
|
|
obj.Data=varargin{k};
|
|
case {'nbin','bin'}
|
|
obj.nBin=varargin{k};
|
|
otherwise
|
|
error('invalid variable name');
|
|
end
|
|
end
|
|
else
|
|
if nargin>=1
|
|
obj.Data=varargin{1};
|
|
end
|
|
if nargin==2
|
|
obj.nBin=varargin{2};
|
|
end
|
|
end
|
|
end
|
|
end
|
|
%% set functions
|
|
methods
|
|
function set.Data(obj,val)
|
|
if isnumeric(val)
|
|
obj.Data=val;
|
|
else
|
|
error('please enter numeric array/matrix as reference');
|
|
end
|
|
end
|
|
function set.nBin(obj,val)
|
|
if isnumeric(val)
|
|
obj.nBin=val;
|
|
else
|
|
error('please enter numeric array or value as bin definition');
|
|
end
|
|
end
|
|
end
|
|
%% core function(s)
|
|
methods
|
|
|
|
function Calc(obj)
|
|
if isempty(obj.Data)
|
|
warning('nothing to do');
|
|
return;
|
|
end
|
|
if obj.UseHistProxy
|
|
if isempty(obj.nBin)
|
|
obj.nBin=floor(numel(obj.Data)./10);
|
|
end
|
|
[N,bin]=hist(obj.Data(:),obj.nBin);
|
|
N=transpose(N);
|
|
P=N./sum(N);
|
|
CP=cumsum(P);
|
|
FC=1-CP;
|
|
FC(FC<0)=0;
|
|
dl=ones(size(FC))./numel(FC);
|
|
else
|
|
q=sort(unique(obj.Data(:)));
|
|
FC=zeros(size(q));
|
|
dl=zeros(size(q));
|
|
for k=1:numel(q)
|
|
FC(k)=sum(obj.Data(:)>=q(k));
|
|
if k==1
|
|
dl(k)=(q(k+1)-q(k))/2; %should I divide by 2?
|
|
elseif k==numel(q)
|
|
dl(k)=(q(k)-q(k-1))/2;
|
|
else
|
|
dl(k)=(q(k+1)-q(k))/2+(q(k)-q(k-1))/2;
|
|
end
|
|
end
|
|
FC=FC./numel(obj.Data);
|
|
end
|
|
LogFC=log(FC);
|
|
LogFC(~isfinite(LogFC))=0;%the log of 0 is -inf. however in Fc.*logFc it should end up as 0. to avoid conflicts removing the -inf
|
|
if any(isnan(FC));keyboard;end
|
|
obj.CRE=-transpose(dl)*(FC.*LogFC)./(transpose(dl)*FC); %CRE zografos
|
|
%% get the RB
|
|
dl(FC>0.5)=0; %set the weight for all in the histogram to the left side (i.e. <p50) to 0
|
|
CRE_Med_Inf=-transpose(dl)*(FC.*LogFC)./(transpose(dl)*FC); %CRE zografos
|
|
ind=find(exp(-CRE_Med_Inf)>=FC,1,'first');
|
|
if obj.UseHistProxy
|
|
obj.P_RB=FC(ind);
|
|
obj.RB=bin(ind);
|
|
else
|
|
SortData=sort(obj.Data);
|
|
obj.RB=SortData(ind);
|
|
obj.P_RB=FC(ind);
|
|
end
|
|
end
|
|
end
|
|
end |