table

Methods

⌂ table

Method Reference: table.numel

table: out = numel (tbl)

Total number of elements in table.

out = numel (tbl) returns the number of elements in the table, tbl, equivalent to prod (size (tbl)). A table is treated as a two-dimensional container, so this is the number of rows times the number of variables. Variables may themselves span multiple columns, but numel only accounts for the number of rows and the number of variables, not the underlying columns.

Source Code: table

Example: 1

For a table numel returns rows times variables — the number of table cells — not the count of underlying data elements. This 3-by-2 table therefore has 6 cells even though BloodPressure holds two columns.

 Age = [38; 43; 40];
 Smoker = logical ([1; 0; 1]);
 BloodPressure = [124, 93; 109, 77; 117, 75];
 T = table (Age, Smoker, BloodPressure)
T =
  3x3 table

    Age    Smoker    BloodPressure    
    ___    ______    _____________    

     38    true          124    93    
     43    false         109    77    
     40    true          117    75
 numel (T)
ans = 9

It is simply the product of height and width.

 height (T) * width (T)
ans = 9