Finding equal values, between values, greater than and lesser than values of a matrix based on some values

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mr mo 2017-11-7

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https://ww2.mathworks.cn/matlabcentral/answers/365720-finding-equal-values-between-values-greater-than-and-lesser-than-values-of-a-matrix-based-on-some

编辑： mr mo 2017-12-18

采纳的回答： Andrei Bobrov

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Hi. Suppose I have matrix A of size (m*n) e.g.

 A = [12  44
43
44
41
41
40
40];

and the a,b,c and d values e.g.

 a = 10
 b = 95
 c = 145
 d = 290

As you know

 a < A(1,1)
 A(2,1) < b < A(3,1)
 c = A(4,1)
 d > A(7,1)

I want Matlab to do above process and search the a,b,c and d values in the A(:,1) and tell me that the a,b,c and d values are lesser than or greater than or equal or lying between what members of A(:,1).

Thanks for your help.

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James Tursa 2017-11-7

You did not answer my request. Please provide the exact variable outputs you would like based on your example. I.e., at the end of your code, what variables would you like as output and what specific values would they contain for your example above?

mr mo 2017-11-7

编辑：mr mo 2017-11-7

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for this example I want to reach these outputs if we consider that the a,b,c,d values are given to the code respectively, so I want these out puts respectively:

which means a is lesser than 12 and b is between 93 and 128 and c is equal to 145 and d is between 280 and 1000.

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采纳的回答

Andrei Bobrov 2017-11-7

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https://ww2.mathworks.cn/matlabcentral/answers/365720-finding-equal-values-between-values-greater-than-and-lesser-than-values-of-a-matrix-based-on-some#answer_289930

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A = [12  44
93  43
128 44
145 41
180 41
220 40
280 40];
a = 10;
b = 95;
c = 145;
d = 290;
ii_interval_of_1st_column_of_A = discretize([a,b,c,d],[-inf;A(:,1);inf]);