How to save file as pdf?

imagesc(x,y,img), colorbar,                                 %color plot
objectiveoutput = saveas(gcf,'objective.pdf');             %saving image as pdf

The above is a plot i wish to save however I am receiving the error that there is too many outputs.

Any help?

Answer 1

[madhan ravi]

saveas(gcf,'objective.pdf') % without objectiveoutput =

Answer 2

[YT]

Well I don't think you can call saveas with an output argument which is why it gave you the error (see saveas documentation here). Just remove it and it will probably be fine

saveas(gcf,'objective.pdf');