How to convert long to scientific e format in plots legend?

txt = ['lambda = ',num2str(lambda(check))];
plot(1:100, abs(Arec(:,2000)),'DisplayName',txt)% capon
legend show

How to change the long format to scieitific e, like 1e6 in legend?

Answer 1

[Bjorn Gustavsson]

You could be a bit more explicit in the call to legend:

txt = ['lambda = ',num2str(lambda(check))];
ph = plot(1:100, abs(Arec(:,2000))); % ,'DisplayName',txt); % capon
leg_str = sprintf('lambda = %3.3g',lambda(check));
legend(ph,leg_str)

HTH

[Rik]

Or edit the display text property to have the e format.

[Bjorn Gustavsson]

True, but explicitly calling legend with the plot-handles has additional benefits in terms of what to include, which is not necessary in this case but will eventually pop up.