How do i get element array from find function?
1 次查看(过去 30 天)
显示 更早的评论
I know that the find function gives me an array with the location of elements. How do I convert those location indices into an array that displays the element instead?
0 个评论
回答(1 个)
Image Analyst
2017-2-18
If you have a 1-D vector, it gives the indexes directly. If you have a 2-D matrix, it gives rows and columns,
[rows, columns] = find(yourArray = someValue);
I don't know what you mean by the element - is it the linear index, the row(s) and column(s), or the array element itself? If you're testing a range instead of equality, you can use the linear index instead of the rows and columns to get the values:
m = magic(5);
linearIndexes = find(m>=18)
result = m(linearIndexes)
5 个评论
Stephen23
2017-2-18
编辑:Stephen23
2017-2-18
@Anonymous Matrix: I (and other volunteers here) try to show beginners that they can also search for information in the documentation: the documentation has information on how MATLAB works, and you want information on how to use MATLAB... it is a match made in heaven! The more you practice searching for information in the documentation the more you will learn, and the better you will be at using MATLAB.
I don't expect beginners to know how to use MATLAB. I do encourage beginners to read the documentation: MATLAB has very readable documentation. Use it.
Star Strider
2017-2-18
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Logical 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!