Filter löschen
Filter löschen

Looping through a 3D matrix

27 Ansichten (letzte 30 Tage)
Robert
Robert am 4 Nov. 2015
Kommentiert: TastyPastry am 5 Nov. 2015
I have a 3D matrix 35,43,144
I want to run the following code such that it performs the function element by element through the 3rd dimension (using 144 data points) I want this to be done for every pixel giving me 1505 outputs (35x43)
I just can't seem to figure out the correct loop inputs
p = load ('JPLCSRmean.mat')
GRACE = p.datamean
ncol = size(GRACE,2);
for k = 1:144
j = 1:43
i = 1:35
[c,l] = wavedec(GRACE(i,j,k),4,'dmey');
al = appcoef(c,l,'dmey',1);
%[cD1,cD2,cD3,cD4,cD5,cD6] = detcoef(c,l,[1,2,3,4,5,6]);
D = [];
%D(:,6)= wrcoef('a',c,l,'dmey',6);
%D(:,5) = wrcoef('a',c,l,'dmey',5);
D(:,4) = wrcoef('a',c,l,'dmey',4);
D(:,3) = wrcoef('a',c,l,'dmey',3);
D(:,2) = wrcoef('a',c,l,'dmey',2);
D(:,1) = wrcoef('a',c,l,'dmey',1);
filename = sprintf('%s_%04f.txt', 'GRACE_APROXIMATIONS', k)
csvwrite(filename,D)
end

Antworten (1)

TastyPastry
TastyPastry am 4 Nov. 2015
for i = 1:144
for j = 1:43
for k = 1:35
myVal = myData(i,j,k);
%do something
end
end
end
  2 Kommentare
Robert
Robert am 4 Nov. 2015
Bearbeitet: Robert am 4 Nov. 2015
Thanks, so now my code looks like this
p = load ('JPLCSRmean.mat')
GRACE = p.datamean
ncol = size(GRACE,2);
for i = 1:144
for j = 1:43
for k = 1:35
[c,l] = wavedec(GRACE(i,j,k),4,'dmey');
al = appcoef(c,l,'dmey',1);
%[cD1,cD2,cD3,cD4,cD5,cD6] = detcoef(c,l,[1,2,3,4,5,6]);
D = [];
%D(:,6)= wrcoef('a',c,l,'dmey',6);
%D(:,5) = wrcoef('a',c,l,'dmey',5);
D(:,4) = wrcoef('a',c,l,'dmey',4);
D(:,3) = wrcoef('a',c,l,'dmey',3);
D(:,2) = wrcoef('a',c,l,'dmey',2);
D(:,1) = wrcoef('a',c,l,'dmey',1);
filename = sprintf('%s_%04f.txt', 'GRACE_APROXIMATIONS', k)
csvwrite(filename,D)
end
end
end
I think it is running allright but the outputs aren't saving properly, I think it is to do with where I have 'k' in this line
filename = sprintf('%s_%04f.txt', 'GRACE_APROXIMATIONS', k)
What can I replace k with to give me 1505 outputs of 35x43?
At the moment I am just getting 35 outputs that keep saving over eachother
TastyPastry
TastyPastry am 5 Nov. 2015
You could declare a tracking variable outside the entire loop and increment it each time you print a file.

Melden Sie sich an, um zu kommentieren.

Kategorien

Mehr zu Loops and Conditional Statements finden Sie in Help Center und File Exchange

Tags

Produkte

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by