How to determine the cut off points

Question

FIR 2011-12-20

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/24358-how-to-determine-the-cut-off-points

I ahvae to set the cutoff points for a  matrix
forexample say have values from 1 t0 100 in one column....for this the cut of points should be foe ex
0-10.5
10.5-30
30-45.5
45.5-80
80-100
the cut off points should be determined by using discretization algorithm,please help ,how to use that algotithm,I have 100 rows and 5 columns,each column has different values
for example
column1=1 t0 100(random numbers)
column2=zeros and ones
column3=2000-3000(random 100 numbers)
column4=20-60(random 100 nimbers)
column5=200-600(random 100 numbers)

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Walter Roberson 2011-12-20

So this is just a matter of selecting random values in a particular range? You know how to use rand() to create a random number in a range.

So, if the questions are the same, then why was this one posted?

Do not keep posting a new question each time you feel like pushing people for an answer. Continually posting new questions just makes more work for the moderators who are responsible for keeping the questions tidy. That annoys the moderators, making them less willing to answer questions from you. The majority of the moderators are the same people who answer a lot of questions, so your strategy of posting repeated questions is working against you.

Image Analyst 2011-12-21

I agree with Walter. I have no idea what the "discretization algorithm" is, so unless you explain it we can't give you code for executing it. You seem to say the cutoff point is randomly chosen. Well, okay fine, but how many random locations do you want? Do all columns have, say, 5 cutoff points randomly chosen? Or do they have different numbers? You can look up randi() in the help so what additional help do you need from us?

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