How do I avoid creating intermediate variables?
4 visualizaciones (últimos 30 días)
Mostrar comentarios más antiguos
Say I have a vector of data x and a function f(x).
Now say I want to evaluate f(x) only for x>2, so I do:
ind=x>2; y=f(x(ind));
Now say I want to find y>5;
ind2=y>5;
Now how can I use this information to get the x values corresponding to the y>5 values, WITHOUT using this crude method where I create an intermediate variable:
x_intermediate = x(ind1); % I want to avoid creating this
x_answer = x_intermediate(ind2);
0 comentarios
Respuesta aceptada
Más respuestas (2)
Matt Fig
el 30 de Mayo de 2011
Is your complaint about the extra typing, or the extra variable in the workspace? If the latter, then one way to avoid this kind of thing in general is:
x_answer = x(ind1); % This will be overwritten.
x_answer = x_answer(ind2);
This strategy will serve you beyond this specific problem.
0 comentarios
Ver también
Categorías
Más información sobre Startup and Shutdown en Help Center y File Exchange.
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!