MATLAB: Are strings in a cellarray not interpreted as strings

cellarraystrings

I'm sorry, but I'm sure this is a dumb question, so I ask your forgiveness in advance.

I have a cell array of strings. For example,

mystrings={'(2,3)(4,7)(5,9)', '(1,3)(4,9)'};

now I want to pass them, one at a time, to a function that takes a string argument. When I call

myfunction('(2,3)(4,7)(5,9)')

it works fine, but if I call

myfunction(mystrings(1))

it's not working because, aparently, mystrings(1) is not really a string, even though, when I type mystrings(1) on the matlab command line, the output is

'(2,3)(4,7)(5,9)'

Also, when I enter

isstr('(2,3)(4,6)(5,9)')

the answer is 1, but isstr(mystrings(1)) gives 0.

So what am I missing?

Thanks! -William

Best Answer

mystrings(1) returns a cell array.

mystrings{1} returns the actual contents of the cell array (in this case a string).

So you should do

myfunction(mystrings{1})

Related Solutions

MATLAB: Does STRMATCH in MATLAB cause an error for a cell array containing a numeric value

In this example:

str = 9;
strs = strvcat('This is a string array','with two rows');
ind = strmatch(str,strs);

the normal STRMATCH is used, since the first input is not a cell array. In this case, 9 could be used as an ASCII value, and converted to a tab character. That character can then be compared with the other strings.

In this example:

str ={9};
strs = strvcat('This is a cell array of strings','with two rows');
ind = strmatch(str,strs);

@CELL/STRMATCH will be used, since the first input is a cell array. In this case, the code checks that the cell array contains strings, and converts it to a char array:

if iscellstr(str), str = char(str); end

Cell arrays of strings are special cases of cell arrays, which are commonly used to store strings together which have different lengths, and there are many instances where cell arrays of strings and strings can be used interchangeably. However, {9} is not a cell array of strings, so it is not converted to a character array, which leads to the error being thrown by this code:

if ~ischar(str) | ~ischar(strs)
    error('Requires character array or cell array of strings as inputs.')
end

MATLAB: Strings

Hi,

you are nearly there, I believe: suppose you write in your program at the top

myfilename = 'analysed_data1';

you just call save with

save(fullfile(path, myfilename));

Titus

PS: you might also want to take a look at uigetfile ...

Best Answer

Related Solutions

MATLAB: Does STRMATCH in MATLAB cause an error for a cell array containing a numeric value

MATLAB: Strings

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