table

Methods

⌂ table

Method Reference: table.width

table: W = width (tbl)

Number of variables in table.

W = width (tbl) returns the number of variables in the table tbl as a scalar. It is the equivalent of size (tbl, 2).

Note that this is the number of table variables, not the total number of columns. A single variable may itself contain several columns (for example, a matrix-valued variable), but it still counts as one towards the table width.

For a table with no variables, width returns 0.

Source Code: table

Example: 1

width counts variables, not the underlying columns. BloodPressure is a single variable spanning two columns, so the width is 2, not 3.

 Age = [38; 43; 38; 40; 49];
 Smoker = logical ([1; 0; 1; 0; 1]);
 BloodPressure = [124, 93; 109, 77; 125, 83; 117, 75; 122, 80];
 T = table (Age, Smoker, BloodPressure)
T =
  5x3 table

    Age    Smoker    BloodPressure    
    ___    ______    _____________    

     38    true          124    93    
     43    false         109    77    
     38    true          125    83    
     40    false         117    75    
     49    true          122    80
 width (T)
ans = 3

Splitting the multi-column variable into scalar columns raises the width.

 width (splitvars (T))
ans = 4