Data picking from grid
12 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
I have data in three column (x,y,z)
I want to pick the values of z in each grid ...
For exmaple, in fiure, the values of x are plotted coressponding to x,y. Then with a diffrenec of 1 we grided the plot.
I want to calculate the data points placed in each grid.
0 Kommentare
Akzeptierte Antwort
KSSV
am 11 Sep. 2020
Bearbeitet: KSSV
am 12 Sep. 2020
I have edited the code for your given points so that you can get the points for each grid.
x = -130.7:0.1:-129.7 ;
y = 45.6:0.1:46.3 ;
n = length(x) ;
m = length(y) ;
[X,Y] = meshgrid(x,y) ;
data = importdata("data.txt") ;
x = data(:,1) ; y = data(:,2) ; z = data(:,3) ;
% plot grid
plot(X,Y,'r',X',Y','r')
hold on
for i = 1:m-1
for j = 1:n-1
% Get the points of each grid
P = [X(i,j) Y(i,j) ;
X(i,j+1) Y(i,j+1) ;
X(i+1,j+1) Y(i+1,j+1) ;
X(i+1,j) Y(i+1,j)] ;
idx = inpolygon(x,y,P(:,1),P(:,2)) ;
iwant = [x(idx) y(idx) z(idx)] ;
plot(x(idx),y(idx),'.')
drawnow
end
end
11 Kommentare
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu ANOVA finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!