How to extract values from an array?
50 ビュー (過去 30 日間)
古いコメントを表示
Hello all,
I am trying to extract values from an array using the command given below.
x = 1:0.1:2;
val1 = x(1:4);
val2 = x(1):x(4);
Can anyone tell how val1 is different than val2?
Thanks in advance!
0 件のコメント
回答 (2 件)
Star Strider
2020 年 3 月 10 日
The default ‘step’ for the colon operator is 1. So ‘val1’ correctly addresses elements 1 through 4.
Since ‘x’ has values from 1 to 2 with a step of 0.1, and since ‘x(1)’ is 1 and ‘x(4)’ is 1.3, the next value after ‘x(1)’ is 2. Since this is greater than 1.3, ‘val2’ returns only the first value in the series, that being ‘x(1)’ or 1.
0 件のコメント
Stijn Haenen
2020 年 3 月 10 日
val1 contains the numbers x(1), x(2) x(3) and x(4). val2 contains the numbers between x(1) and x(4) with steps on 1, but x(4) is not large enoug to complete the step so only x(1) is in the list
0 件のコメント
参考
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!