MATLAB: Can’t get cell value

cell array

How can I get the 0 of this vector? This way doesn't work 🙁
>> size(X)
ans =
     1     3
>> X{1,1}
ans =
         0
   -0.0466
   -0.0374
   -0.0207
>> X{1,1,1}
ans =
         0
   -0.0466
   -0.0374
   -0.0207

Best Answer

X{1,1}(1)
  • () parentheses always return the cell or element of the same class.
  • {} curly braces always refer to the cell contents of a cell array.
Which means:
X{1,1}     <- extract contents from the cell array X
      (1)  <- refer to first element of extracted data
The title "Can't get cell value" and your attempts to access this data indicates a misunderstanding of cell arrays. Cell arrays do not have numeric values, they merely contain other arrays. Your data is in a numeric array inside a cell array, so to access any numeric value you need to "remove" the numeric array from the cell array using {}... and it can then be indexed normally using ().
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