How to specify the location to save video using VideoWriter?

I am creating video out of images and I am doing this in a loop for different folders with images. So i need to save the videos in their respective folders. Right now the following code saves the videos to the current working directory and so it keeps getting overwritten. So how do I specify the location to save the videos?

for folder = 1:4
    for loop = 1:numofimages
        images{loop} = imread(pngfile);
    end
    writerObj = VideoWriter('myVideo.avi');
    writerObj.FrameRate = 1;
    secsPerImage = 2.* ones(numofimages,1);
    open(writerObj);
    for u=1:numofimages
        frame = im2frame(images{u});
        for v=1:secsPerImage(u)
            writeVideo(writerObj, frame);
        end
    end
    close(writerObj);
end

Answer 1

[Walter Roberson]

In the place you have 'MyVideo.avi' specify the directory name too in the normal way for your system.