How can I replace data on the axis to become u horizontal and y vertical?

1 次查看（过去 30 天）
Shreen El-Sapa
Shreen El-Sapa 2024-3-18
回答： Hassaan 2024-3-18
y = 0:0.01:5;
t1=0.1; t2=3;t3=5;t4=10;
nu = 5;
u0=1;
figure(1)
hold on
u1 = u0.*erfc(y./2.*sqrt(nu*t1));
u2 = u0.*erfc(y./2.*sqrt(nu*t2));
u3 = u0.*erfc(y./2.*sqrt(nu*t3));
u4 = u0.*erfc(y./2.*sqrt(nu*t4));
plot(y,u1,'-',y,u2,'--',y,u3,'-.',y,u4,':','LineWidth',2)
grid on
xlabel('y');
ylabel('u(y,t)');
legend('t = 0.1','t = 3','t = 5','t = 10','Location','best')
%title('Velocity distributions at different t')

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回答（2 个）

Dyuman Joshi
Dyuman Joshi 2024-3-18
Use -
plot(u1,y,'-',u2,y,'--',u3,y,'-.',u4,y,':','LineWidth',2)
Note the syntax for plotting x and y data using plot is -
plot(x_data, y_data)
Reference - https://in.mathworks.com/help/matlab/ref/plot.html#d126e1185381
Hassaan
Hassaan 2024-3-18
Ran in:
y = 0:0.01:5;
t1=0.1; t2=3; t3=5; t4=10;
nu = 5;
u0=1;
figure(1)
hold on
u1 = u0.*erfc(y./2.*sqrt(nu*t1));
u2 = u0.*erfc(y./2.*sqrt(nu*t2));
u3 = u0.*erfc(y./2.*sqrt(nu*t3));
u4 = u0.*erfc(y./2.*sqrt(nu*t4));
% Switch the order of u and y in the plot function
plot(u1, y, '-', u2, y, '--', u3, y, '-.', u4, y, ':', 'LineWidth', 2)
grid on
% Update labels accordingly
xlabel('u(y,t)');
ylabel('y');
legend('t = 0.1', 't = 3', 't = 5', 't = 10', 'Location', 'best')
title('Velocity distributions at different t')
-----------------------------------------------------------------------------------------------------------------------------------------------------
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