How to get the order if one column has same number and other column has different values

1 view (last 30 days)
I have the below cell table in MATLAB, I am using the "num2cell(transpose(Array_games( [true, diff(Array_games) ~= 0] )));" function to get the order of the first column, and I get the order as [0 1], but I want the order of the array_games as [0 0 1], because there is gap of 3 seconds inbetween array_games 0(row 4 and 5). Is there any way I can get that by using the column 2 with array_games column?

Answers (2)

Dyuman Joshi
Dyuman Joshi on 27 Apr 2022
Array_games = [0 0 0 0 0 0 0 1 1 1]';
Column_2 = [datetime(2022,2,25,19,06,57);datetime(2022,2,25,19,06,57);datetime(2022,2,25,19,06,58);...
datetime(2022,2,25,19,06,58);datetime(2022,2,25,19,07,01);datetime(2022,2,25,19,07,02);...
datetime(2022,2,25,19,07,02);datetime(2022,2,25,19,08,33);datetime(2022,2,25,19,08,33);...
datetime(2022,2,25,19,08,33)];
y=table(Array_games, Column_2)
y = 10×2 table
Array_games Column_2 ___________ ____________________ 0 25-Feb-2022 19:06:57 0 25-Feb-2022 19:06:57 0 25-Feb-2022 19:06:58 0 25-Feb-2022 19:06:58 0 25-Feb-2022 19:07:01 0 25-Feb-2022 19:07:02 0 25-Feb-2022 19:07:02 1 25-Feb-2022 19:08:33 1 25-Feb-2022 19:08:33 1 25-Feb-2022 19:08:33
%inital 1 to address for 1st element
[1 find(diff(y.Column_2)>=duration(0,0,3))'+1] %adding one to get the required index
ans = 1×3
1 5 8
y.Array_games([1 find(diff(y.Column_2)>=duration(0,0,3))'+1])
ans = 3×1
0 0 1

Stephen23
Stephen23 on 27 Apr 2022
Edited: Stephen23 on 27 Apr 2022
Simpler and more efficient using basic logical indexing:
arg = [zeros(7,1);1;1;1]
arg = 10×1
0 0 0 0 0 0 0 1 1 1
dtm = datetime(2022,2,25,19,[6;6;6;6;7;7;7;8;8;8],[57;57;58;58;1;2;2;33;33;33])
dtm = 10×1 datetime array
25-Feb-2022 19:06:57 25-Feb-2022 19:06:57 25-Feb-2022 19:06:58 25-Feb-2022 19:06:58 25-Feb-2022 19:07:01 25-Feb-2022 19:07:02 25-Feb-2022 19:07:02 25-Feb-2022 19:08:33 25-Feb-2022 19:08:33 25-Feb-2022 19:08:33
idx = [true;diff(dtm)>=seconds(3)]
idx = 10×1 logical array
1 0 0 0 1 0 0 1 0 0
out = arg(idx)
out = 3×1
0 0 1

Categories

Find more on MATLAB in Help Center and File Exchange

Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!