Time series with quiver

Hello all

I'm trying to plot a time series of wind speed and direction using quiver but I can't figure it out. I thought it would be pretty logical but quiver requires (x,y) and I don't have that. My data is from the same wind station over a 40 year period. How would I go about plotting the data as a time series?

[Rik]

Why do you want to use quivers? Wouldn't two plots with speed and direction separately be more informative?

Otherwise you can still use quiver, but you will have to build it up yourself (start out with regular spaced x values and generate end points based on speed and direction).

Answer 1

[Star Strider]

See if this does what you want:

N = 10;
wind_vel = rand(N, 1)*25;                           % Velocitoy Vector
wind_dir = randi(360, N, 1);                        % Direction Vector
wind_u = cos(wind_dir).*wind_vel;                   % Wind ‘x’ Direction
wind_v = sin(wind_dir).*wind_vel;                   % Wind ‘y’ Direction
wind_w = zeros(N, 1);                               % Wind ‘z’ Direction

x = zeros(N, 1);                                    % Station Remains Stationary 
y = zeros(N, 1);                                    % Station Remains Stationary 
t = linspace(0, 25, N)';                            % Time

figure(1)
quiver3(x, y, t, wind_u, wind_v, wind_w)
hold on
plot3(x, y, t, '-k', 'LineWidth',2)
hold off
grid on