getting min and max for different y-values of a graph
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x = -10:0.1:10;
f1 = trapmf(x,[-2 0 0 2]);
I need to find min(x),max(x) for 201 different f1 values
since my f1 ranges from 0 to 1 in this built in function
@ f1 = 0, I need a min(x), max(x)
@ f1 = 0.05, min(x), max(x)
..
all the way upto
@f1 = 1, min(x), max(x).
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/151511/image.png)
0 Kommentare
Antworten (1)
Walter Roberson
am 23 Jun. 2015
testlocs = 0:0.05:1;
t = bsxfun(@ge, f1(:), testlocs);
for K = 1 : size(t, 1)
minidx = find(t(K,:), 1, 'first');
maxidx = find(t(K,:), 1, 'last');
minx(K) = testlocs(minidx);
maxx(K) = testlocs(maxidx);
end
2 Kommentare
Walter Roberson
am 25 Jun. 2015
testlocs = 0:0.05:1;
t = bsxfun(@le, testlocs(:), f1(:)');
for K = 1 : size(t, 1)
minidx = find(t(K,:), 1, 'first');
maxidx = find(t(K,:), 1, 'last');
minx(K) = testlocs(minidx);
maxx(K) = testlocs(maxidx);
end
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