convert cell to array

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

Answer 1

[Adam]

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.

[Stephen23]

Simpler and more efficient:

str2double({sp.name })