?? triangular.m
字號:
function heights=triangular(data,center,bw);
% PURPOSE:
% Triangular kernel function
%
% USAGE:
% heights=triangular(data,center,bw)
%
% INPUTS:
% data: Data used for height calculation
% center: The location for height calculation
% bw: The bandwidth
%
% OUTPUTS:
% heights: Scalar height for kernel density
%
% COMMENTS:
% For kernel density estimation
%
% Author: Kevin Sheppard
% kevin.sheppard@economics.ox.ac.uk
% Revision: 2 Date: 12/31/2001
u=(data-center)/bw;
heights=(1-abs(u)).*(abs(u)<1);
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