how to convert cell array to numeric array?

how to convert cell array of size (4514,1) to numeric array where each cell has values like 'fh8453655' and some cells are nan.

[Stephen23]

What numeric value do you expect to get from a character vector like 'fh8453655' ?

[Suresh R]

numeric in the sense i want to convert this cell array to a array where my array type is double with same data

[Stephen23]

"numeric in the sense i want to convert this cell array to a array where my array type is double with same data"

Okay. Please show us the exact numeric value that you expect to get for the character vector 'fh8453655' .

[Jan]

In other words: fh8453655 is not a number. It is not clear, what you expect as output. Perhaps 8453655?

Answer 1

[Mathieu NOE]

maybe this ?

>> a = {'fh8453655'}
>> beginStr = regexp(a, '\d+', 'match');
>> beginNumbers = cellfun(@(x) str2double(x{1}), beginStr)

beginNumbers =

     8453655

[Stephen23]

Simpler, but equally fragile:

a = {'fh8453655'}

a = 1×1 cell array
    {'fh8453655'}

b = str2double(regexprep(a,'\D+',''))

b = 8453655

b = str2double(regexp(a,'\d+','match','once'))

b = 8453655