save animation into gif

hi...i wrote my function and making it as walking sine, and i'd like to save it as a gif. can anyone help me?

close all
t = linspace(0, 4*pi, 100);
y = sin(t);
yH=hilbert(y);
fig=figure
hold on
hl1 = plot(t, y);
hl2 = plot(t,0.5*imag(yH));
hl3 = plot(t,y+imag(yH));
camroll(90)
hold off
grid on
xlim tight
ylim padded

%hold on
for i=1:700
    set(hl1, 'YData', circshift(get(hl1, 'YData'), 1));
    set(hl2, 'YData', circshift(get(hl2, 'YData'), 1));
    set(hl3, 'YData', circshift(get(hl3, 'YData'), 1));
    drawnow 
    
end

Answer 1

[Luca Ferro]

use this function from file exchange:

https://ch.mathworks.com/matlabcentral/fileexchange/63239-gif

I personally use it every now and then and it always work great