Separate values from one column

Hi

In this matrix I have 5 groups of values that I want to join.

Here is part of column:

26380

26381

26382

327207

327208

327209

327210

I want that the 3 first numbers to stay in one matrix and the rest in others.

With more cases of this

for n = 1:(length(newData)-1)
    if  ( newData(n+1,1)) == ( newData(n,1) + 1 )  
        line0(n+1) = n;
    else if ( newData(n+1,1)) ~= ( newData(n,1) + 1 )
         line1(n+1) = n+1;
    end
end

I tried like this.

Answer 1

[Chunru]

x = [26380
26381
26382
327207
327208
327209
327210
400
450
500];

threshold = 1000;
xd = diff(x);
idx = find(abs(xd) > threshold);
idx = [0; idx(:); length(x)];
for i=1:length(idx)-1
    y{i} = x(idx(i)+1:idx(i+1));
end
y{1}, y{2}, y{3}

ans = 3×1

26380 26381 26382

ans = 4×1

327207 327208 327209 327210

ans = 3×1

400 450 500

Answer 2

[Image Analyst]

To group a vector of data into 5 different groups based on their values you can use kmeans() (in the Statistics and Machine Learning Toolbox):

v = [...
	26380
	26381
	26382
	327207
	327208
	327209
	327210
	222111
	222133
	222144
	222124
	111111
	111141
	111151
	121245]

v = 15×1

26380 26381 26382 327207 327208 327209 327210 222111 222133 222144

bar(v);
grid on;

indexes = kmeans(v, 5) % Cluster into 5 groups.

indexes = 15×1

4 4 4 1 1 1 1 3 3 3

indexes is a vector that says what group each of your data values most likely belongs to.