cell consisting letters and numbers to matrix double

Asked by Lotte van de Venis

Lotte van de Venis (view profile)

on 27 Oct 2017
Latest activity Commented on by Cedric Wannaz

Cedric Wannaz (view profile)

on 29 Oct 2017
Hi,
I have a matrix containing 840x1 cells. These consist of 3 letters followed by numbers. Is there a way to convert this into 840x1 double?
I have tried str2double, but these returns only NaN. I tried several combinations with num2str, char, celstr, but i can't figure it out.

Jan

Jan (view profile)

on 27 Oct 2017
Please give any meaningful example. What is the wanted result for 'ABC123'? How do you want to convert this to a number?
Walter Roberson

Walter Roberson (view profile)

on 28 Oct 2017
xlswrite('Name Excelfile.xlsx', [num2cell(Group), num2cell(Trail), mTrail], 1)

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Cedric Wannaz (view profile)

on 27 Oct 2017
Edited by Cedric Wannaz

Cedric Wannaz (view profile)

on 27 Oct 2017

>> C = {'ABC8', 'CAD90.87', 'ZED40'} ;
>> C2 = cellfun( @(s)s(4:end), C, 'UniformOutput', false ) ;
>> str2double( C2 )
ans =
8.0000 90.8700 40.0000
EDIT 1: here is a solution that extracts both parts:
>> data = textscan( [C{:}], '%3s%f' ) ;
With that you get
>> data
data =
1×2 cell array
{3×1 cell} {3×1 double}
>> data{1}
ans =
3×1 cell array
{'ABC'}
{'ZED'}
>> data{2}
ans =
8.0000
90.8700
40.0000

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Walter Roberson

Walter Roberson (view profile)

on 27 Oct 2017
How do you want the 'ABC' to be encoded into the double that you need to be output?
Cedric Wannaz

on 27 Oct 2017