Creating a table by extracting rows from a table based off their values in relation to another table of a different size.

7 visualizaciones (últimos 30 días)
I have two tables of different size, for example, I have a 16x4 table with headers a,b,c and d and I have another 6x2 table with headers c and d. I have constructed both tables in matlab
a = [11;33;55;77;99;23;45;67;89;87;65;43;10;1;3;5];
b = [22;44;66;88;12;34;56;78;98;76;54;32;21;2;4;6];
c = [2;2;2;2;4;4;4;4;6;6;6;6;8;8;8;8];
d = [2;4;6;8;2;4;6;8;2;4;6;8;2;4;6;8];
T1 = table(a,b,c,d)
cc = [1.2;1.6;5.5;6.7;5.9;2.3];
dd = [2.5;4.6;3.5;3.2;1.5;1.9];
T2 = table(cc,dd)
T3 = T1(abs(T1.c-T2.cc)<=1 & abs(T1.d-T2.dd)<=1)
I wish to construct another table by filtering out rows based on values of abs(c - cc) <= 1 and abs(d - dd)<= 1 as the conditions and construct a new table using the extracted rows. looking like this in due to the order of the previous table t2:
.
But I couldn't do it as the number of variables are different. Any help will be appreciated!

Respuestas (1)

Stephen23
Stephen23 el 15 de Sept. de 2022
a = [11;33;55;77;99;23;45;67;89;87;65;43;10;1;3;5];
b = [22;44;66;88;12;34;56;78;98;76;54;32;21;2;4;6];
c = [2;2;2;2;4;4;4;4;6;6;6;6;8;8;8;8];
d = [2;4;6;8;2;4;6;8;2;4;6;8;2;4;6;8];
T1 = table(a,b,c,d)
T1 = 16×4 table
a b c d __ __ _ _ 11 22 2 2 33 44 2 4 55 66 2 6 77 88 2 8 99 12 4 2 23 34 4 4 45 56 4 6 67 78 4 8 89 98 6 2 87 76 6 4 65 54 6 6 43 32 6 8 10 21 8 2 1 2 8 4 3 4 8 6 5 6 8 8
cc = [1.2;1.6;5.5;6.7;5.9;2.3];
dd = [2.5;4.6;3.5;3.2;1.5;1.9];
T2 = table(cc,dd)
T2 = 6×2 table
cc dd ___ ___ 1.2 2.5 1.6 4.6 5.5 3.5 6.7 3.2 5.9 1.5 2.3 1.9
ixc = any((T1.c-reshape(T2.cc,1,1,[]))<=1,3);
ixd = any((T1.d-reshape(T2.dd,1,1,[]))<=1,3);
T3 = T1(ixc&ixd,:)
T3 = 6×4 table
a b c d __ __ _ _ 11 22 2 2 33 44 2 4 99 12 4 2 23 34 4 4 89 98 6 2 87 76 6 4
  1 comentario
Low Kay Tong
Low Kay Tong el 15 de Sept. de 2022
I am sorry, but your output is different from my intended output. is it due to the lack of the absolute sign? I'd appreciate it if you could explain the code!

Iniciar sesión para comentar.

Categorías

Más información sobre Tables en Help Center y File Exchange.

Etiquetas

Productos


Versión

R2021b

Community Treasure Hunt

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

Start Hunting!

Translated by