Continue in a for loop if a file isn't present

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Clifford Shelton 2012-12-22

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/57240-continue-in-a-for-loop-if-a-file-isn-t-present

编辑： Honey 2021-10-18

I'm having a problem with the correct syntax to complete the task without receiving an error. Any help is most appreciated!

In my program there is a for loop to import a series of spreadsheets into Matlab. These spreadsheets are for every US baseball team.

I want to know the syntax of how to skip and continue the for loop if one of the files within the loop are not found in the folder.

Here is the code i have so far:

for Str = {'Diamondbacks' 'Braves' 'Orioles' 'Boston' 'Cubs' 'WhiteSox' 'Reds' 'Indians' 'Rockies' 'Tigers' 'Astros' 'Royals' 'Angels' 'Dodgers' 'Marlins' 'Brewers' 'Twins' 'Mets' 'Yankees' 'Athletics' 'Phillies' 'Pirates' 'Padres' 'Giants' 'Mariners' 'Cardinals' 'Rays' 'Rangers' 'BlueJays' 'Nationals'};
folder = '';
   fileToRead1 = [Str{1} '.xls'];
   sheetName='Sheet1';
 // this is to organize the data in a way easy for me to use 
     [numbers, strings, raw] = xlsread(fileToRead1, sheetName);
  if ~isempty(numbers)
      newData1.data =  numbers;
  end
if ~isempty(strings) && ~isempty(numbers)
    [strRows, strCols] = size(strings);
    [numRows, numCols] = size(numbers);
    likelyRow = size(raw,1) - numRows;
    % Break the data up into a new structure with one field per column.
    if strCols == numCols && likelyRow > 0 && strRows >= likelyRow
        newData1.colheaders = strings(likelyRow, :);
    end
// Here is my feeble attempt to skip and continue the forloop if a file is
// not found.  It doesn't work of course.  
if ~isempty(fileToRead1)
    newData1.data =  numbers;
continue  
end
end

采纳的回答

Image Analyst 2012-12-22

3
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/57240-continue-in-a-for-loop-if-a-file-isn-t-present#answer_69232

编辑：Image Analyst 2012-12-22

在 MATLAB Online 中打开

Continue if the file is not there:

if exist(fileToRead1, 'file') == 0
  % File does not exist
  % Skip to bottom of loop and continue with the loop
  continue;
end

I don't think @Clifford Shelton cares about this so rather than continue to hijack his thread more, and since this seems to be a continuing series of questions, I suggest you post your code and data in your own discussion thread. It will get answered better there.

TUTORIAL: How to ask a question (on Answers) and get a fast answer

Honey 2021-10-18