Why my program doesn't work?

names = {'Harry', 'Xavier', 'Sue'};
verbs = {'loves', 'eats'};
nouns = {'baseballs', 'rocks', 'sushi'};
a = names(randi(length(names))); 
v = verbs(randi(length(verbs)));
o = nouns(randi(length(nouns)));
fprintf {'%s %s %s \n', a, v, o}

I can't print out the words. I keep getting the error "Error using fprintf. Function is not defined for 'cell' inputs."

[James Tursa]

What are you trying to do? Print out some random combinations of the above? All of the possible combinations? Or what?

Answer 1

[Star Strider]

Change your fprintf call to:

fprintf('%s %s %s \n', char(a), char(v), char(o))

[Durgesh Naik]

please go through struct once........!

[Star Strider]

@Durgesh — I don’t understand what you mean by ‘struct’. There are no structure variables involved in the code.

As for the line itself, ‘a’ and the others are cells, so you have to use char to print them with fprintf. Since printing them is the problem, my code solves it.

The rest of the code in the original post works correctly, and does not need to be modified.

Answer 2

[Image Analyst]

Wrong braces and parentheses. See the FAQ for a good explanation of when to use braces and when to use parentheses. http://matlab.wikia.com/wiki/FAQ#What_is_a_cell_array.3F

Here is the corrected code:

rng('shuffle'); % Randomize the seed.
names = {'Harry', 'Xavier', 'Sue'};
verbs = {'loves', 'eats'};
nouns = {'baseballs', 'rocks', 'sushi'};
a = names{randi(length(names))}; 
v = verbs{randi(length(verbs))};
o = nouns{randi(length(nouns))};
fprintf('%s %s %s \n', a, v, o);