Find a value in a vector

Hello, I need some help.

I want to search in this vector s=[25 33 56 25 98 25 33 25 33 25 68 25 98], for this value, Pattern=25, and I want to memorize in a variable what numbers are repeated after this Pattern I choose and the one that is repeated most of the time to keep it in a variable FinalPrediction.

Pattern=25 => What is up next after Pattern :numbers.repeated= 33,98,33,33,68,98 => Results that number 33 is repeating 3 times after Pattern=25 That means my next number after the last number from s vector is number 33 .

>>FinalPrediction=33

>> s.final = [25 33 56 25 98 25 33 25 33 25 68 25 98, 33 ]

I don't now how to write a cod that gives to me this result

Thank you!

Answer 1

[Image Analyst]

You can easily build up a table for how many times each possible combination of two numbers appears together (one after the other) in the string:

s=[25 33 56 25 98 25 33 25 33 25 68 25 98]
Pattern=25
us = unique(s)
numNumbers = length(us)
results = zeros(numNumbers, 3); % Number1, number2, # times this combination appears
loopCounter = 1;
for k1 = 1 : numNumbers
	for k2 = 1 : numNumbers
		indexes = strfind(s, [us(k1), us(k2)])
		results(loopCounter, 1) = us(k1);
		results(loopCounter, 2) = us(k2);
		results(loopCounter, 3) = length(indexes);
		loopCounter = loopCounter + 1;
	end
end
% Show the results:
results

You get:

results =

25 25 0

25 33 3

25 56 0

25 68 1

25 98 2

33 25 2

33 33 0

33 56 1

33 68 0

33 98 0

56 25 1

56 33 0

56 56 0

56 68 0

56 98 0

68 25 1

68 33 0

68 56 0

68 68 0

68 98 0

98 25 1

98 33 0

98 56 0

98 68 0

98 98 0

[Mihaela Bocai]

Thank you for helping me! I understand what the code is doing.

In my question, a give it an simple example, a vector with 13 positions, but in reality I need for a vector with 744 positions (can apply you code for such a long vector? I am asking because the results that Matlab will give it to me it will be very long and I have to count too many times what number after my pattern was repeated ), reasons for why I said that and I want to memorize in a variable what numbers are repeated after this Pattern I choose and the one that is repeated most of the time to keep it in a variable FinalPrediction.

Then, I want to obtain directly this number like a result from Matlab >>FinalPrediction=33 , without search in a such long the table that matlab will give it like result. I want that Matlab give it to mine the next prediction that I will have in the next hour.

This vector will contain values from energy consumed by household consumers every hour, I have a history with this values and I want to predict the te energy consumed in the next hour.

Sorry, I don't write very well in english, I hope that you've undestood me?

I've tried you code and Matlab gives me:

I don't understand why Matlab returns me that many rows with indexes(from what I know the index is used to find the position Where is your value that you are searching, but I don't need that Matlab gives me the position of the Pattern but the next value after the Pattern) and what is the meaning of the row "indexes = [] " ??

Pattern = 25

us = 25 33 56 68 98

indexes = []

indexes = 1 6 8

indexes = []

indexes = 10

indexes = 4 12

indexes = 7 9

indexes = []

indexes = 2

indexes = []

indexes = []

indexes = 3

indexes = []

indexes = []

indexes = []

indexes = []

indexes = 11

indexes = []

indexes = []

indexes = []

indexes = []

indexes = 5

indexes = []

indexes = []

indexes = []

indexes = []

results =

25 25 0

25 33 3

25 56 0

25 68 1

25 98 2

33 25 2

33 33 0

33 56 1

33 68 0

33 98 0

56 25 1

56 33 0

56 56 0

56 68 0

56 98 0

68 25 1

68 33 0

68 56 0

68 68 0

68 98 0

98 25 1

98 33 0

98 56 0

98 68 0

98 98 0

Sorry for my many questions! Thank you,very, very much!

Answer 2

[Sulaymon Eshkabilov]

V  = [ .......]  % 
    Most_V = mode(V);
    VFinal = [V, mode(V)];