how to covert char array to num array?

how do i convert char array to num array?

arr = ['some'; 'thee'; 'time'; 'hour']

I need a way to convert into the ascii values of these char.

[Stephen23]

arr = ['some'; 'thee'; 'time'; 'hour']

arr = 4x4 char array
    'some'
    'thee'
    'time'
    'hour'

mat = double(arr)

mat = 4×4

115 111 109 101 116 104 101 101 116 105 109 101 104 111 117 114

[Walter Roberson]

The original version had 'the' instead of 'thee' so it could not be represented as a character array... which is why David answered with {}

Answer 1

[David Hill]

arr={'some'; 'the'; 'time'; 'hour'};%must be cell array since lengths are not the same
for k=1:length(arr)
  arr{k}=double(arr{k});%simple for-loop converts
end

[Mithushan Kanthasamy]

is there way to convert it without for loop?

[Walter Roberson]

No. The best you can do is hide the loop

output = cellfun(@double, arr, 'uniform', 0)