how to fix "Error using plot. Data must be a single input of y-values or one or more pairs of x- and y-values." error.

figure(4) 
plot(uv_model,y(1:N-1),'LineWidth',2,uv,y,'LineWidth',2,uv_model2,y(1:N-1),'g','LineWidth',2)
axis([-.01 .01 -1.05 1])
title('uv varying lm model')
xlabel('uv') % x-axis label
ylabel('y') % y-axis label
legend('lm=const','exact','Lm=f(yy/L)')

Answer 1

[Voss]

plot(uv_model,y(1:N-1),uv,y,uv_model2,y(1:N-1),'g','LineWidth',2)

[Voss]

Property/value pairs of arguments (like "'Linewidth',2") must come at the end of the argument list and apply to all lines plotted with that call to plot().