comparing rows in matrices

function lottonumbers = draw_lottonumbers(draws, balls,rows)

% A function that draws 'draws' random integers without replacement 

between 1 and

% 'balls', i.e. a random lotto sequence

% INPUT PARAMETERS

%   draws: # of balls drawn (in norwegian lotto this is 7)

%   balls: # of balls, i.e. # of possible numbers (in norwegian 

lotto this is 34)

%   rows:  # of lottorows (in norwegian lotto this is normally 10)

% OUTPUT PARAMETERS

%   lottonumbers: a matrix with 'rows' rows, where the rows are the

%              lotto-combinations you play

lottonumbers = zeros(rows,draws);

for i=1:rows

       temp_combination = randsample(balls,draws,'false');

          % draw 'draws' integers between 1 and 'balls'

       lottonumbers(i,:) = sort(temp_combination);

          % sort the drawn lottosequence in ascending order

end

using function above:

function thrtyfoinrow=drawlotto(v)

thrtyfoinrow=0;

draw_lottonumbers(7,34,v)

winner=rand(1,7);

winner=ceil(winner);

for i=1:v

      if winner==lottonumbers(i,:)

          for j=1:v

            if winner(j)==34

                thrtyfoinrow=thrtyfoinrow+1;

            end

          end

      end

end

I get error in

   if winner==lottonumbers(i,:)

I guess my comparing is bad?

[Oleg Komarov]

What error do you get?

[Daniel Shub]

My guess is the error is related to the fact that winner is 1x7 and not a scalar.

Answer 1

[Daniel Shub]

You might want to use

doc isequal

or

all(winner == lottonumber(i,:))