Error using double Conversion to double from cell is not possible.

Hi, Im facing this problem can some one help? I want to store multiple elements of matrix 'Rulebase' to 'a'

Rulebase = {            'OutNB' 'OutNB' 'OutNB' 'OutNM' 'OutNS' 'OutNS' 'OutZ';
                        'OutNB' 'OutNM' 'OutNM' 'OutNM' 'OutNS' 'OutZ '  'OutPS';
                        'OutNB' 'OutNM' 'OutNS' 'OutNS' 'OutZ'  'OutPS'  'OutPM';
                        'OutNB' 'OutNM' 'OutNS' 'OutZ ' 'OutPS' 'OutPM'  'OutPB';
                        'OutNM' 'OutNS' 'OutZ'  'OutPS' 'OutPS' 'OutPM'  'OutPB';
                        'OutNS' 'OutZ'  'OutPS' 'OutPM' 'OutPM' 'OutPM'  'OutPB';
                        'OutZ'  'OutPS' 'OutPS' 'OutPM' 'OutPB' 'OutPB'  'OutPB'};
     a=zeros(1,7);
     a(1,1)=Rulebase(2,3);
     a(1,2)=Rulebase(2,4);
     .
     .
     .
     ..
Output = a;

Where Output should be like.. OutNB OutNS OutZ..... and want to access 'Output' later for other purpose (Character Comparison).Please Help

Answer 1

[Adam]

a=zeros(1,7);

declares an array of type 'double'. You are trying to put strings in it.

Use

a = cell(1,7);

a{1} =Rulebase(2,3);
...

if you want to store elements of your Rulebase array..

[Sarit Hati]

Thank you Adam!! Really appreciate this!

Answer 2

[KSSV]

You can extra

ct the required string from the cell array using:

clc; clear all ;
Rulebase = {            'OutNB' 'OutNB' 'OutNB' 'OutNM' 'OutNS' 'OutNS' 'OutZ';
                        'OutNB' 'OutNM' 'OutNM' 'OutNM' 'OutNS' 'OutZ '  'OutPS';
                        'OutNB' 'OutNM' 'OutNS' 'OutNS' 'OutZ'  'OutPS'  'OutPM';
                        'OutNB' 'OutNM' 'OutNS' 'OutZ ' 'OutPS' 'OutPM'  'OutPB';
                        'OutNM' 'OutNS' 'OutZ'  'OutPS' 'OutPS' 'OutPM'  'OutPB';
                        'OutNS' 'OutZ'  'OutPS' 'OutPM' 'OutPM' 'OutPM'  'OutPB';
                        'OutZ'  'OutPS' 'OutPS' 'OutPM' 'OutPB' 'OutPB'  'OutPB'};

% 
idx = strfind(Rulebase(:), 'OutNB');
idx = find(not(cellfun('isempty', idx)));
Rulebase(idx)

[Guillaume]

Why not simply

Rulebase(strcmp(RuleBase, 'OutNB')) %for full match

or

Rulebase(contains(RuleBase, 'OutN')) %for partial match

[Sarit Hati]

Thank you @KSSV and @Guillaume !!. But what I was looking for Ive already got it ,thanks to @Adam!! Really appreciate you guys!!