Hash tables in MATLAB

Consider using MATLAB’s map class: containers.Map. Here is a brief overview:

• Creation:

  >> keys = {'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', ...
    'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec', 'Annual'};
  
  >> values = {327.2, 368.2, 197.6, 178.4, 100.0,  69.9, ...
    32.3,  37.3,  19.0,  37.0,  73.2, 110.9, 1551.0};
  
  >> rainfallMap = containers.Map(keys, values)
  
  rainfallMap = 
    containers.Map handle
    Package: containers
  
    Properties:
          Count: 13
        KeyType: 'char'
      ValueType: 'double'
    Methods, Events, Superclasses
  

• Lookup:

  x = rainfallMap('Jan');
  

• Assign:

  rainfallMap('Jan') = 0;
  

• Add:

  rainfallMap('Total') = 999;
  

• Remove:

  rainfallMap.remove('Total')
  

• Inspect:

  values = rainfallMap.values;
  keys = rainfallMap.keys;
  sz = rainfallMap.size;
  

• Check key:

  if rainfallMap.isKey('Today')
      ...
  end