Detect consecutive positive numbers in an array

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Amirhossein Moosavi
评论： Amirhossein Moosavi 2020-9-24
Hello,
Let us assum an Array A as follows:
A = [4 9 6 0 0 3 4 0 3]
I want to detect the location (begining and ending) of consecutive positive values and store in a Matrix like B:
B=[1 3
6 7
9 9]
For example, in Array A, the first block of consequtive positive values starts from the first element and ends at the third elements.
Would you please help me?
Best, Amir

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David Hill
David Hill 2020-9-24
编辑：David Hill 2020-9-24
A(A<0)=0;%if negative numbers possible
A(A>9)=9;%if >single digit possible
a=num2str(A);
a=a(a~=' ');
B=[regexp(a,'[1-9]*')',regexp(a,'[1-9]*','end')'];

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