MATLAB: Generating random integer from -x to x

random integer generate negative positve

I need to find a way to generate a random integer from -x to x for example -5 to 5

Best Answer

xmin = -x;
xmax = x;
r = round((xmax-xmin).*rand(10,1)+xmin);

Related Solutions

MATLAB: Random number, Random integer

x = 2:6;
y = x(randperm(length(x),2));

MATLAB: How to mirror the Y axis from -x to x

With only a description, I can only guess. However, assuming that your data are row vectors, something like this will work:

x = -20:20;                                     % Create Data

y = exp(-(x.^2)/11) + rand(1,size(x(x>0),1));   % Create Data
y = y + [zeros(1,size(x(x<=0),2)) 0.5*rand(1,size(x(x>0),2))];
x_full = [x(x<=0), -fliplr(x(x<0))];            % Define & Flip X-Values For ‘(x<=0)’

y_full = [y(x<=0),  fliplr(y(x<0))];            % Define & Flip Y-Values For ‘(x<=0)’

figure(1)
plot(x_full, y_full)                            % Plot Result
grid

If they are column vectors, use flipud instead of fliplr, and replace the commas with semicolons:

x_full = [x(x<=0); -flipud(x(x<0))];            % Define & Flip X-Values For ‘(x<=0)’
y_full = [y(x<=0);  flipud(y(x<0))];            % Define & Flip Y-Values For ‘(x<=0)’

Best Answer

Related Solutions

MATLAB: Random number, Random integer

MATLAB: How to mirror the Y axis from -x to x

Related Question