Tag: matlab

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Prox Plot

Defined a prox plot MATLAB function.

Is it helpful?

function proxplot(f,varargin)
%PROXPLOT Plot prox of a scalar function
% Example
% >> proxplot(@(x) abs(x))
% See FPLOT

% Copyright (c) 2017 Shogo MURAMATSU,
% All rights reserved
warning off
prox = @(x) fminsearch(@(y) (f(y)+0.5*(y-x)^2),0);
fplot(@(x) prox(x),varargin)
warning on