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)

[Walter Roberson]

What is a "cutoff point", or how can we determine whether any proposed list of cutoff points is what you want?

What is the difference between this question and your previous CACC cutoff point question?

[FIR]

Both the qustions are same ,i need the cut off point randomly frp a given column of numbers,cut off point i a range between those numbers,,

[Walter Roberson]

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]

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?

Answer 1

[Jim]

use for loop

for i=1:5

A{}=your algorithm for cutoff points(col1,col2,col3,col4,col5);

end

this will gives the individual cutoff point values for all the columns

[FIR]

Jan in

A{}=your algorithm for cutoff points(col1,col2,col3,col4,col5);

i did not understand this code can u explain plz