how to use legend syntax properly

recvd_signal_paralleled(1:cp_len,:)=[];

R1=recvd_signal_paralleled(:,1);

R2=recvd_signal_paralleled(:,2);

R3=recvd_signal_paralleled(:,3);

R4=recvd_signal_paralleled(:,4);

R5=recvd_signal_paralleled(:,5);

R6=recvd_signal_paralleled(:,6);

R7=recvd_signal_paralleled(:,7);

R8=recvd_signal_paralleled(:,8);

figure(15),plot((imag(R1)),'r'),subplot(8,1,1),plot(real(R1),'r'),

title('Cyclic prefix removed from the eight sub-carriers')

subplot(8,1,2),plot(real(R2),'y')

subplot(8,1,3),plot(real(R3),'g')

subplot(8,1,4),plot(real(R4),'b')

subplot(8,1,5),plot(real(R5),'k')

subplot(8,1,6),plot(real(R6),'c')

subplot(8,1,7),plot(real(R7),'m')

subplot(8,1,8),plot(real(R8),'b')

legend({'x axis-Freq','y axis-amplitude'},'Location','bestoutside','FontSize',12,'TextColor','blue')

Graph is like

only y axis legend is showing

I want to show x axis freq and yaxis amplitude

What Changes need to be done?Please help

Answer 1

[Cris LaPierre]

I think you might not understand what a legend is. Have a look at the documentation.

It sounds like you want xlabel and ylabel.

Note that xlable, ylabel, title, and legend are properties of a single plot. You have 8 plots. Since you call legend at the end, it adds the legend to the last plot created.

[Dipsikha Roy]

Can you suggest me how can i say in this graph in one place that xlabel is time and ylabel is amplitude?

[Cris LaPierre]

plot(rand(1,10),'b')
xlabel('Time')
ylabel('Amplitude')