MATLAB: How to assign numeric values to strings in an array

cell arrays

I need to assign specific values to some of these chemical species in an array. I need to set RH equal to 100, OH = 100, and NO = 100 and the rest of the species are equal to 0. The array of species looks like this:
 SpeciesName = 
    'RH'
    'OH'
    'RO2'
    'H2O'
    'NO'
    'NO2'
    'RCHO'
    'HO2'
    'HNO3'
    'H2O2'
    'O2'
    'ROOH'
    'hv'
    'O3'

Best Answer

You can use a structure
S = struct('Name', {{'RH' 'OH' 'RO2' 'H20'}}, 'Value', [100 100 0 0])
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