MATLAB: Grouping elements by conditions

grouping

I have an array [ 1 1.2 1.5 1.9 5 8 8.1 10 12 12.3 12.5]. I'm trying to group the elements that are within a window of length 1, so I get [ 1 1.2 1.5 1.9] [8 8.1] [12.3 12.5] How can this be done efficiently

Best Answer

You could try this file

   x=[ 1 1.2 1.5 1.9 5 8 8.1 10 12 12.3 12.5];
  label = graph_connected_components(abs(x.'-x)<=1)
groupcell = splitapply(@(g){g},x,label)

Related Solutions

MATLAB: Find element in array

Not sure how you get the result, but here is an attempt

Data

E=[1 2;1 5;2 3;2 4;2 5;3 4;4 5;4 7;4 9;5 6;6 11;6 12;6 13; 7 8;7 9;9 10;9 14;10 11;12 13;13 14]
C={[1,2,4,5],[1,2,4,5,6,9,10,11],[1,2,4,5,6,13,13]}

Code

CC = cellfun(@(s) E(all(ismember(E,s),2),:), C, 'unif', 0);

Result:

MATLAB: Grouping elements from a table

Assuming your table is T, the following code can generate what you want.

[group, id] = findgroups(T.Week);
func = @(p, q, r, s) [p(1), max(q), min(r), s(end)];
result = splitapply(func, T.Open, T.High, T.Low, T.Close, group)
Tout = array2table([id, result],...
  'VariableNames', T.Properties.VariableNames);

Best Answer

Related Solutions

MATLAB: Find element in array

MATLAB: Grouping elements from a table

Related Question