Compare two tables with different length

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Dixi
Dixi 2019-6-27
Hey MatLab users,
i need help to compare different columns from two tables (T1 and T2) with different length for various conditions (date, time, timestep, A, B, C) to cause a result (T2.res).
T2.res should be = 1 for every timestep in T2.timestep if date and time are equal and if the value T1.A (row-1) is not equal or greater than T1.A (row) when T1.B (row) = 1.
T1.date = [20190101; 20190101; 20190101; 20190101; 20190101; 20190101; 20190102; 20190102; 20190102; 20190102; 20190102; 20190102; 20190102; 20190102]
T1.time = [0; 0; 0; 12; 12; 12; 0; 0; 0; 0; 6; 6; 6; 6] % sorted time (0,1,2...)
T1.A = [20; 30; 35; 10; 30; 45; 28; 42; 60; 65; 20; 45; 50; 60] % cumulative value per T1.time
T1.B = [1; 0; 0; 0; 1; 0; 0; 0; 1; 0; 1; 0; 0; 0] % max. one value "1" in T1.B per T1.time value
T2.date = [20190101; 20190101; 20190101; 20190101; 20190101; 20190101; 20190101; 20190102; 20190102; 20190102; 20190102; 20190102; 20190102; 20190102]
T2.time = [0; 0; 0; 12; 12; 12; 12; 0; 0; 0; 6; 6; 6; 6] % sorted time (0,1,2...)
T2.timestep = [1; 2; 3; 1; 2; 3; 4; 1; 2; 3; 1; 2; 3; 4] % sorted timesteps (1,2,3,4...)
T2.C = [15; 5; 25; 10; 20; 40; 5; 13; 39; 55; 8; 1; 24; 20] % different positive values
% Conditions might be like:
% % if T1.date == T2.date && T1.time == T2.time && T1.B == 1 && % "first row in T1" && T1.B
% T2.res = 1;
Result should be:
T2.res = [1; % date: ok, time: ok, T1.B == 1 is the first value in T1.time == 0: ok
1; % date: ok, time: ok, T1.B == 1 is the first value in T1.time == 0: ok
1; % date: ok, time: ok, T1.B == 1 is the first value in T1.time == 0: ok
0; % date: ok, time: ok, T1.B == 1 (row) and T1.A == 30 (row) but T1.A (row-1) == 10 >= T2.C == 10: false
1; % date: ok, time: ok, T1.B == 1 (row) and T1.A == 30 (row) and T1.A (row-1) == 10 < T2.C == 20: ok
1; % date: ok, time: ok, T1.B == 1 (row) and T1.A == 30 (row) and T1.A (row-1) == 10 < T2.C == 40: ok
0; % date: ok, time: ok, T1.B == 1 (row) and T1.A == 30 (row) but T1.A (row-1) == 10 >= T2.C == 5: false
0; % date: ok, time: ok, T1.B == 1 (row) and T1.A == 60 (row) but T1.A (row-1) == 42 >= T2.C == 13: false
0; % date: ok, time: ok, T1.B == 1 (row) and T1.A == 60 (row) but T1.A (row-1) == 42 >= T2.C == 39: false
1; % date: ok, time: ok, T1.B == 1 (row) and T1.A == 60 (row) and T1.A (row-1) == 42 < T2.C == 55: ok
1; % date: ok, time: ok, T1.B == 1 is the first value in T1.time == 12: ok
1; % date: ok, time: ok, T1.B == 1 is the first value in T1.time == 12: ok
1; % date: ok, time: ok, T1.B == 1 is the first value in T1.time == 12: ok
1] % date: ok, time: ok, T1.B == 1 is the first value in T1.time == 12: ok
Thanks!!

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