MATLAB: Convert cell to array

cell2array

I have a structure sp. How can I copy the content name into an arrray ? Its supposed to be an array of numbers.

a = sp.name;
a = sp(:).name;

does not work

names = { sp.Name }

will extract them into a single cell array

nums = cellfun( @str2double, names );

will turn them to a numeric array. Or just

cellfun( @str2double, { sp.Name } )

as a one-line command.

A = { 'B 1'; 'B 12'; 'B123' }
B=str2double(regexp(A,'\d+','match','once'))

NewCellArray = vertcat( ExistingCellArray{:} );