%3A.  function to normalize data by whole chip signal
%		normalization factors are scaled by the mean whole chip signal

function normalized_data = WC_normalize(unnorm_data, missing_data, WC_data)

if size(WC_data,2) > size(unnorm_data,2) %for test data 
   meantotaltest = mean(sum(unnorm_data));
   normalized_data = unnorm_data./repmat(sum(unnorm_data)/meantotaltest,size(unnorm_data,1),1);
else                                     %for chip data
   normalized_data = unnorm_data./repmat(WC_data/mean(WC_data),size(unnorm_data,1),1);
end
normalized_data(missing_data) = -1000;	%set all missing values back to -1000

return