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From: Claudia Champagne on 14 Jan 2010 15:36
How can I enter string inputs into a function within a loop?

I want to use the function [d,A]=strdist(r,b,krk,cas) in a loop since I have a number of r and b inputs for which I need the distance.

The problem is that inputs r and b have to appear in a string form for the function to work:
e.g. strdist('MATLAB','MathWorks',2,1)
ans = 6 9

However, if these 2 strings ('Matlab' and 'Mathworks') are located in arrays, the function does not work properly as it doesn't read them as strings.

For example:
r_array = cell array of r (where 'Matlab' is located)
b_array = cell array of b (where 'MathWorks' is located)

I tried the following :

[d,A] = strdist(cellstr(r_array{1,1}), cellstr(b_array{1,1}),2,1)

and I get an answer if 1, which is the answer that I get when I enter just about anything as input.

How can I tell the function to read my inputs as strings?
From: Andy on 14 Jan 2010 15:46
"Claudia Champagne" <claudia.champagne(a)usherbrooke.ca> wrote in message <hinv5p$6p7$1(a)fred.mathworks.com>...
> How can I enter string inputs into a function within a loop?
>
> I want to use the function [d,A]=strdist(r,b,krk,cas) in a loop since I have a number of r and b inputs for which I need the distance.
>
> The problem is that inputs r and b have to appear in a string form for the function to work:
> e.g. strdist('MATLAB','MathWorks',2,1)
> ans = 6 9
>
> However, if these 2 strings ('Matlab' and 'Mathworks') are located in arrays, the function does not work properly as it doesn't read them as strings.
>
> For example:
> r_array = cell array of r (where 'Matlab' is located)
> b_array = cell array of b (where 'MathWorks' is located)
>
> I tried the following :
>
> [d,A] = strdist(cellstr(r_array{1,1}), cellstr(b_array{1,1}),2,1)
>
> and I get an answer if 1, which is the answer that I get when I enter just about anything as input.
>
> How can I tell the function to read my inputs as strings?

% You could start by not explicitly converting them to cell arrays:

[d,A] = strdist(r_array{1,1}, b_array{1,1},2,1)
From: Jan Simon on 14 Jan 2010 16:11
Dear Claudia!

> I want to use the function [d,A]=strdist(r,b,krk,cas) in a loop since I have a number of r and b inputs for which I need the distance.
> However, if these 2 strings ('Matlab' and 'Mathworks') are located in arrays, the function does not work properly as it doesn't read them as strings.
>
> r_array = cell array of r (where 'Matlab' is located)
> b_array = cell array of b (where 'MathWorks' is located)

I cannot follow. Please post valid Matlab commands, because "cell array of b (where 'MathWorks' is located)" is ambiguos.

> I tried the following :
> [d,A] = strdist(cellstr(r_array{1,1}), cellstr(b_array{1,1}),2,1)
> and I get an answer if 1, which is the answer that I get when I enter just about anything as input.

It seems to me like you confuse the terms "array", "string" and "cell string".
The command CELLSTR creates a cell string, e.g. {'string1'}. A "cell string" is a cell array, which contains strings as elements. Strings are arrays of type CHAR.
You've stated, that STRDIST needs strings as input. To get an element of a cell string, reference it with the curly braces and you get string.

As far as I understood, your input is something like:
r = {'Matlab', 'MattLab', 'MatSchlapp'}
b = {'MathWorks', 'TheMathWorks', 'TMW'}

Then you can call STRDIST like:
for i = 1:length(r)
for j = 1:length(b)
[d, A] = strdist(r{i}, b{j}, 2, 1)
end
end

But I might be missing the point. Then I please you to paste your Matlab code.
Kind regards, Jan
From: Miroslav Balda on 14 Jan 2010 16:40
"Claudia Champagne" <claudia.champagne(a)usherbrooke.ca> wrote in message <hinv7i$afv$1(a)fred.mathworks.com>...
> How can I enter string inputs into a function within a loop?
>
> I want to use the function [d,A]=strdist(r,b,krk,cas) in a loop since I have a number of r and b inputs for which I need the distance.
>
> The problem is that inputs r and b have to appear in a string form for the function to work:
> e.g. strdist('MATLAB','MathWorks',2,1)
> ans = 6 9
>
> However, if these 2 strings ('Matlab' and 'Mathworks') are located in arrays, the function does not work properly as it doesn't read them as strings.
>
> For example:
> r_array = cell array of r (where 'Matlab' is located)
> b_array = cell array of b (where 'MathWorks' is located)
>
> I tried the following :
>
> [d,A] = strdist(cellstr(r_array{1,1}), cellstr(b_array{1,1}),2,1)
>
> and I get an answer if 1, which is the answer that I get when I enter just about anything as input.
>
> How can I tell the function to read my inputs as strings?

Hi,

It is necessary to test the input variables, just like:

function [d,A] = strdist(a,b,c,d)
% STRDIST ......
if ischar(a)
r = a;
else
r = a{:};
end
:
etc

Hope it helps

Mira
From: Oleg Komarov on 14 Jan 2010 17:48
"Claudia Champagne"
> How can I enter string inputs into a function within a loop?
>
> I want to use the function [d,A]=strdist(r,b,krk,cas) in a loop since I have a number of r and b inputs for which I need the distance.
>
> The problem is that inputs r and b have to appear in a string form for the function to work:
> e.g. strdist('MATLAB','MathWorks',2,1)
> ans = 6 9
>
> However, if these 2 strings ('Matlab' and 'Mathworks') are located in arrays, the function does not work properly as it doesn't read them as strings.
>
> For example:
> r_array = cell array of r (where 'Matlab' is located)
> b_array = cell array of b (where 'MathWorks' is located)
>
> I tried the following :
>
> [d,A] = strdist(cellstr(r_array{1,1}), cellstr(b_array{1,1}),2,1)
>
> and I get an answer if 1, which is the answer that I get when I enter just about anything as input.
>
> How can I tell the function to read my inputs as strings?

In1 = {'Hi','Hello'};
In2 = {'Bye','GoodBye'};

nIter = numel(In1);
if nIter == numel(In2)
Out = cell(nIter,2);
for n = 1:numel(In1)
[Out{nIter,1}, Out{nIter,1}] = strdist(In1{nITer},In2{nITer},2,1);
end

Oleg
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