How take value (column number) from one data set (1x15145 double) and find value corresponding to same row and column associated with another data set (1x4579 double)
1 vue (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Sag
le 17 Jan 2016
Commenté : Walter Roberson
le 17 Jan 2016
I have a value with specific row and column number from one data set s (1x15145 double), and I want to extract value corresponding to same row column number from another data set Time (1x4579 double)
0 commentaires
Réponse acceptée
Walter Roberson
le 17 Jan 2016
Time(row_from_s, column_from_s)
??
Though with vectors you would normally only use one index.
Example:
[minval, minidx] = min(s);
if minidx > length(Time)
error('Time is too short to get the corresponding position of s');
end
t = Time(minidx);
4 commentaires
Walter Roberson
le 17 Jan 2016
The result of strfind() is a set of linear indices, not a set of rows and columns. You can use the linear indices to index the vector Time.
You would need to take more care if you were using 2D or multidimensional arrays of different sizes and needed matching row and column numbers, but when you use vectors (or arrays in which all of the dimensions were equal except perhaps the last dimension) then you do not need to worry about that, linear indices are fine. Just don't translate to row and column numbers if you have multiple values.
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Matrix Indexing dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!