How to compute number of points in each cell of a scatter plot

Question

RAHIBA 2015-3-7

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/182002-how-to-compute-number-of-points-in-each-cell-of-a-scatter-plot

评论： Star Strider 2015-3-11

Hello, As a part of my project, I want to extract the state space point distribution features from speech signal. I get the scatter plot of reconstructed state space. Then I want to compute number of points in each cell from that scatter plot. Please help me to compute number of points in each cell of that scatter plot.Please assist. Thanks in advance. Rahiba

clear;
clc;
[x,Fs]=wavread('C:\Users\raiba\Desktop\project\database\1\1\3.wav');
Y=get_delay_vector(x,2,1);
plot(Y(:,1),Y(:,2));
set(gca, 'XTick', [-1:0.1:1])
set(gca, 'YTick', [-1:0.1:1])
scatterplot(Y);
set(gca, 'XTick', [-1:0.1:1])
set(gca, 'YTick', [-1:0.1:1])
grid on;
function Z=get_delay_vector(data,embed_dimen,delta)
data_size=size(data);
if data_size(1)<data_size(2)
    data=data';
end
data_size=size(data);
Z=zeros(data_size(1),embed_dimen);
for i=1:embed_dimen      
    Z(:,i)=circshift(data,[-(i-1)*delta,0]);     
end
end