MATLAB: How to process multiple matrices. Checking whether the elements of a matrix are within the specified range

for loopfor loop multiple matricesmultiple matricesmultiple variablesprocess for loopprocess matrices

Hello. I have 55 matrices 288×1 named Load1, Load2, Load3, …, Load55. I need to create a for loop which checks whether the values are between 207 and 253. If one of the values exceeds 253 or is less than 207, I need to display the name of this variable. For example, one of the elements of matrix Load7 is 205. In this case, the program should display 'Load7'. Ultimately, I need to get a list of variables which values are not within specified range. Also, the script has to calculate the total number of variables which values are not within the range.
The output of the script shall look like, for example:
The Loads which are not within the range: Load7, Load25, Load37. The total number of loads: 3
Any help is greatly appreciated. Thank you.

Best Answer

Given you heed the advice in the comment so the data are in array loads
lo=207; hi=253;                  % set the limits desired
ix=iswithin(loads,lo,hi);        % check all are ok, ix is logical array of locations
isOK=all(ix);                    % if T, all are ok for each column
if all(isOK)
  fprintf('All is well\n')
else
  bad=sum(~isOK);                % number failed columns (loads)
  fmt=['Load %2d' repmat(', %2d',1,bad-1) '\n']  % format string to print offending load(s)
  fprintf(fmt,find(~isOK))       % and print the message
  fprintf('Total number of loads failed: %d\n',bad)  % and the total
end
CAUTION: Air code, untested, but should be close.
iswithin is a utility function of mine--
>> type iswithin
function flg=iswithin(x,lo,hi)
% returns T for values within range of input
% SYNTAX:
%  [log] = iswithin(x,lo,hi)
%      returns T for x between lo and hi values, inclusive
    flg= (x>=lo) & (x<=hi);
  >>
ADDENDUM
Dawned on me not that hard to build some data to test...
>> loads=round(randn(20,3)*12+230)
oads =
 234   237   224
 208   229   226
 242   238   217
 259   233   224
 242   236   228
 226   212   231
 235   218   229
 218   225   237
 253   231   231
 241   244   252
 239   227   234
 219   245   252
 234   236   221
 223   244   236
 226   232   227
 223   222   237
 218   212   237
 219   232   204
 227   240   214
 210   226   213
>> ix=iswithin(loads,lo,hi);
>> isOK=all(ix)
isOK =
   0     1     0
>> bad=sum(~isOK);
>> fmt=['Load %2d' repmat(', %2d',1,bad-1) '\n'];
>> fprintf(fmt,find(isOK==false))
Load  1,  3
>> fprintf('Total number of loads failed: %d\n',bad)
Total number of loads failed: 2
>>
Looks OK to me...
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