How can I determine or formulate certain intervals from a given set of data.

Assuming that I have the following data.

0.110064

0.120277

8.957109

-------

-------

8.957806

-------

-------

50.69346

50.6958

50.69846

-------

-------

up to n

I want to have about 20 groups of intervals such as,

interval(1)= 0.110064 to 0.310064

interval(2)= 0.310064 to 0.510064

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interval(n)= a to b

interval(n+1)= c to d

where a, b, c, d are any values within the data. Please note a<b<c<d

At the end, I want to have something like this (where the first number is extracted from the lower range of the first interval , followed by its upper range (as the second number); and the third number being the upper range of the second interval etc), as shown below.

IntervalRange(1)= 0.110064

IntervalRange(2)= 0.310064

IntervalRange(3)= 0.510064

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-------------------------

IntervalRange(k)= n

IntervalRange(k+1)= n+1

In fact the output should only be like the one below;

*0.110064

0.310064

0.510064

n

n+1

Thank you*

Answer 1

[Matz Johansson Bergström]

If I understand it correctly, you want something like this?

%mock data, increasing numbers
data = 50*rand(50,1);
data = sort(data);

%The intervals
iv = linspace(data(1), data(end), 20)