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function [varargout] = stats(A) |
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% stats(A) writes the basic statistics of the A to the terminal which |
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% are i) the minimum finite value |
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% ii) the maximum finite value |
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% iii) the mean of the finite values |
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% iv) the S.D. of the finite values ( RMS of [A-mean] ) |
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% v) the fraction of non-finite elements excluded from calculations |
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% |
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% e.g. |
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% >> stats(topo) |
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% Min -4555 Max 0 Mean -2331.07 SD 1207.3441 N-Z 1024/1024 |
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% |
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% [Min Max Mean SD]=stats(topo); returns the statistics in Min, Max, |
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% Mean and SD and does not write to the terminal. |
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% |
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% $Header$ |
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|
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%ii=find(A~=0); |
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ii=find(isfinite(A)); |
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if isempty(ii) |
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ii=1; |
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end |
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sZ=prod(size(A)); |
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minA=min(A(ii)); |
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maxA=max(A(ii)); |
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meanA=mean(A(ii)); |
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sdA=sqrt( mean( (A(ii)-meanA).^2 ) ); |
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nZ=prod(sum(sum(sum(~isfinite(A))))); |
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switch max(nargout) |
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case {0} |
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disp( ... |
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sprintf('Min %0.5g Max %0.5g Mean %0.5g SD %0.5g NaN %i/%i',... |
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minA,maxA,meanA,sdA,nZ,sZ) ); |
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case {1} |
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varargout(1)={minA}; |
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case {2} |
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varargout(1)={minA}; |
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varargout(2)={maxA}; |
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case {3} |
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varargout(1)={minA}; |
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varargout(2)={maxA}; |
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varargout(3)={meanA}; |
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case {4} |
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varargout(1)={minA}; |
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varargout(2)={maxA}; |
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varargout(3)={meanA}; |
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varargout(4)={sdA}; |
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otherwise |
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error('Too many return arguments requested') |
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end |
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