comparison between a string/or cell and categorical data

hi,i ve this problem

Trading=categorical({'As is';'bla'})

B='As is';

class(B)='char'

b==Trading(1)

> 0

how can i compare a value of type char and a categorical data type?

(

Answer 1

[Steven Lord]

MATLAB is correct.

Sis(1).Trading = 'As Is'

Sis = struct with fields:
    Trading: 'As Is'

Trading(1) = categorical({'As is'})

Trading = categorical
     As is 

Sis(1).Trading==Trading(1)

ans = logical
   0

If you used a capital I in the definiition of Trading or a lower-case i in the definition of Sis(1).Trading you'd receive the results you expected.

SisLC.Trading = 'As is';
SisLC.Trading == Trading(1)

ans = logical
   1

TradingUC = categorical({'As Is'});
Sis(1).Trading == TradingUC

ans = logical
   1

[Luca Re]

I realized now that it'is "Is" and not "is" .. sorry

Answer 2

[the cyclist]

Your method works for me:

Trading = categorical({'As is';'bla'});
B='As is';

B == Trading(1)

ans = logical
   1

You did have a lower-case "b" in your code. MATLAB is case-sensitive. Maybe that was part of the problem?

[Luca Re]

I made a transcription error but on my example it doesn't work

class(Sis(i).Trading)

ans =

'char'

Sis(i).Trading

ans =

'As Is'

Trading(1)

ans=

categorical

As is

Sis(i).Trading==Trading(1)

ans =

logical

0

strcmp(Sis(i).Trading,Trading(1))

ans =

logical

0

i reported my example with simple variables but using my own variables it doesn't work

(i used both == and strcmp)

[the cyclist]

Can you upload the variables in a MAT file? I think that any way I choose to define the above, it is going to work as in your simple example.

[Luca Re]

another example .

>> Trading(1)

ans =

categorical

As is

>> v

v =

'As Is'

>> Trading(1)==v

ans =

logical

0

[the cyclist]

We don't need another example. Please upload your data. You can use the paper clip icon in the INSERT section of the toolbar.

As I said above, I can define the variables myself and get your example to work. The key to understanding your problem is to use the data you are actually working with.

Trading(1) = categorical({'As Is'});
v = 'As Is';

Trading(1) == v

ans = logical
   1

[Luca Re]

>> test

ans =

categorical

As is

ans =

logical

0