Plot legend for loop

I want to have a consolidated plot generated from "for loop" with legend for only first and last value of the variable.

My code would look like this

hold on
for i = 0.1:0.001:1
    plot(i,cos(i))
end
hold off 

My function is different than cos(i), the problem that I have is that I want to display legend for only i = 0.1 and i = 1, which I couldn't. Or is there any way I could indicate that the line belongs to i =0.1 and i=1? Any reference or help is highly appreciated.

thanks

[Ameer Hamza]

Legend belongs to a specific line, not just one point on the line. Can you show us an example of what is your required output?

[Tshewang Phuntsho]

I am looking for something like this but only to the curves associated with the extreme points. GNU plot example. I would still appreciate if anyone could help. I sort a got it but not up to this point.

[madhan ravi]

Are you looking to labelling the point?

doc text  % ?

[Tshewang Phuntsho]

I am looking for something like these but to only extreme curves. GNU link

Answer 1

[Peng Li]

You can try assign each line with a handle by

hold on
iHandler = 1;
for i = 0.1:0.001:1
    iHandler = plot(i,cos(i));
    iHanlder = iHanlder + 1;
end
hold off 

After that, you can use legend([1 whateverNumCorrespondingTo1], {'your legend'}).

Or you can set DisplayName property in plot function that only has value when i = 0.1 or 1.