the command legend in R2016b does not work like in R2013b?

I got an old GUI and programm from my boss, which does only work with R2013b for some reason. Since I did not programm it myself, I have to go through every line and search for errors.

One of the lines which seems to work fine with 2013b but not with my 2016b version is the following:

legend1=legend(hpl(:),-1);

hpl is in this a 1x9 vector. Does anyone have an idea, why this line does only work in 2013b and what it even should do?

Answer 1

[Walter Roberson]

The -1 needs to be recoded as 'Position', 'NorthEastOutside'

http://www.mathworks.com/help/releases/R2013b/matlab/ref/legend.html