Logical operator not evaluating correctly
2 ビュー (過去 30 日間)
古いコメントを表示
Given the provided array X, create an array Y that is:
equal to 0 if the corresponding element of X is between -5 and +5, inclusive
equal to -1 if the corresponding element of X is less than -5
equalt to +1 if the corresponding element of X is greater than 5
Here is what I have:
Y = (~(X >= -5 & X <= 5) | (-1*(X < -5)) | (X>5)).
Why is the X < -5 not evaluationg to -1?
0 件のコメント
採用された回答
Star Strider
2023 年 1 月 26 日
Only two comparisons are actually required here —
X = linspace(-7, 7, 15);
Y = -(X < -5) + (X > 5);
Check_Result = [X; Y]
.
0 件のコメント
その他の回答 (2 件)
Walter Roberson
2023 年 1 月 26 日
A|B is an or test and returns a logical value -1 is nonzero which is considered true, and since you or everything together you are going to end up with logical true for those entries.
Try adding the results of the computation
0 件のコメント
Les Beckham
2023 年 1 月 26 日
I would do this in separate steps.
X = randi([-20, 20], [1 15])
Y = zeros(size(X));
Y(X < -5) = -1;
Y(X > 5) = 1
0 件のコメント
参考
カテゴリ
Help Center および File Exchange で Creating and Concatenating Matrices についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!