Checking Cell Array for positive numbers

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.

[Thorsten]

It would be helpful to upload your data, or at least a minimal version that reproduces the errors you describe below.

[Stephen23]

@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.

Answer 1

[Star Strider]

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

[Tessa Aus]

When putting this in my code I am receiving the error: Error using sum; Too many input arguments.

[Star Strider]

My code in both the initial and edited code (edited to accommodate the cell vector) runs without error in R2016a.

I cannot reproduce the error you’re getting.

I don’t know the reason it doesn’t work with your code because I don’t have your code.

[Tessa Aus]

What does 'Uni' mean maybe my lack of understanding of that is what is causing the error. And yes I am using a cell array with numbers and letters.

[Star Strider]

The ‘'Uni',0’ is shorthand for ‘'UniformOutput',false’.

From the documentation for cellfun, that option:

• Requests that the cellfun function combine the outputs into cell arrays A1,...,Am. The outputs of function func can be of any size or type.

I’m not sure how to advise you with respect to processing your ‘cell array with numbers and letters’. This is new information that I would have preferred you’d mentioned at the outset, preferably with some sample data and how you want to handle the numbers and letters.

[Tessa Aus]

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]

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.

Answer 2

[Azzi Abdelmalek]

idx=a(:,1)>-150 & a(:,1)<0
out=sum(~idx)

[Tessa Aus]

I get an error "Undefined operator '>' for input arguments of type 'cell'. This is the error I keep getting whenever I use this signage.