Can't get cell value

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

Answer 1

[Stephen23]

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 ().

[Pedro Felipe Oliveira]

Thanks sir Stephen! It Works!