MATLAB: How to remove the numbers from a cell that contains both numbers and strings

cell arrayloop

I need to remove the numbers from this cell array as well as the + sign and = sign. But I want to keep the species names. So the final cell array will have each of the specie names in it and nothing else. I would like to do it using a loop of some sort. Is this possible? Please help me!
 SpeciesName = {
    'RH'
    '+'
    'OH'
    '='
    'RO2'
    'H2O'
    '26.3e-12'
    'NO'
    'NO2'
    'RCHO'
    'HO2'
    '7.7e-12'
    '8.1e-12'
    'HNO3'
    '1.1e-11'
    'H2O2'
    'O2'
    '2.9e-12'
    'ROOH'
    '5.2e-12'
    'hv'
    'O3'
    '0.015'
    '1.9e-14'}

Best Answer

You could use a regular expression. This would work with the example you've provided (assuming hv is to be kept)
tokeep = cellfun(@isempty, regexp(SpeciesName, '^(?:\+|=|[0-9.e+-]+)$'));
SpeciesName = SpeciesName(tokeep)
No loop needed.
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