Checking Cell Array for positive numbers

12 次查看（过去 30 天）
Tessa Aus
Tessa Aus 2016-6-16
编辑： Stephen23 2016-6-21
I have a (:,1) array which should be in a range of 0>ArrayValues>-150. What would I use to check to see if any are out of the range, and then list how many are out of the range. I have tried sum(), and Array<0.
  2 个评论
Thorsten
Thorsten 2016-6-21
It would be helpful to upload your data, or at least a minimal version that reproduces the errors you describe below.
Stephen23
Stephen23 2016-6-21
编辑：Stephen23 2016-6-21
@Tessa Aus: Is there a particular reason why the data in a cell array? This whole task would be trivially easy if the data were stored in a much simpler numeric array.

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Star Strider
Star Strider 2016-6-16
编辑：Star Strider 2016-6-16
Try this:
ArrayValues = randi([-200, 50], 1, 100); % Create Data
OutOfRange = (ArrayValues > -150) & (ArrayValues < 0); % Logical Vector, Use ‘find’ To Get Indices
NrOutOfRange = sum(OutOfRange);
EDIT — If ‘ArrayValues’ is a cell array, this works:
ArrayValues = {randi([-200, 50], 1, 100)}; % Create Data
OutOfRange = cellfun(@(x) (x > -150) & (x < 0), ArrayValues, 'Uni',0); % Use ‘cellfun’
NrOutOfRange = sum(OutOfRange{:}); % Change To Address Cell Array
  6 个评论
显示 4更早的评论
Tessa Aus
Tessa Aus 2016-6-21
So I deleted the first cell because it contained the only letters in the cell array. And reran the system and the exact same error showed up. So it looks as though the error is stemming from something other then the letters (which are not gone) and 'uni'. Any final thoughts before I try a different method? The values are for example -112.365 or -105.09. Thanks
Star Strider
Star Strider 2016-6-21
I don’t have either your data or a clear idea of what you want to do, so I have no further thoughts.
You can remove the ‘'Uni',0’ if you want, although I seriously doubt it’s the problem.

请先登录，再进行评论。

更多回答（1 个）

Azzi Abdelmalek
Azzi Abdelmalek 2016-6-16
idx=a(:,1)>-150 & a(:,1)<0
out=sum(~idx)
  1 个评论
Tessa Aus
Tessa Aus 2016-6-16
I get an error "Undefined operator '>' for input arguments of type 'cell'. This is the error I keep getting whenever I use this signage.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Operators and Elementary Operations 的更多信息

标签

Community Treasure Hunt

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

Start Hunting!

Translated by