清空筛选条件
清空筛选条件

Info

此问题已关闭。 请重新打开它进行编辑或回答。

search and retrieve data from cell array

1 次查看（过去 30 天）
OpenSearch
OpenSearch 2018-8-29
关闭： MATLAB Answer Bot 2021-8-20
I have got a cell array containing a column of 1000 (thousand) 2x2 doubles.
Could someone advise on the most efficient way to search for certain numbers in those doubles? And if found (within an error range), to save them in a separate table?
Many thanks in advance!
  1 个评论
Stephen23
Stephen23 2018-8-30
编辑：Stephen23 2018-8-30
"Could someone advise on the most efficient way to search for certain numbers in those doubles"
The most efficient way would probably be to use a loop. The easiest way might be to use cellfun. Probably the best way would be to have stored your data in one ND array, then you could write better, simpler, vectorized code:
https://www.mathworks.com/help/matlab/matlab_prog/vectorization.html

此问题已关闭。

回答（1 个）

Matthew
Matthew 2018-8-30
编辑：Matthew 2018-8-30
The easiest way I know of is to use cellfun. For instance if you were looking for numbers that are greater than 2
arraysWithNumbersGreaterThan2_IX = cellfun(@(x) any(any(x > 2)), inputArray)
seperateList = inputArray(arraysWithNumbersGreaterThan2_IX);
If you want to find arrays that have 1, 4, or 7 in them
arraysWithCertainNumbers_IX = cellfun(@(x) any(ismember([1,4,7],x)), inputArray)
seperateList = inputArray(arraysWithCertainNumbers_IX);

此问题已关闭。

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by