running blocks of code in parallel?

[Jared]

I have the following code that I need to run on several matrices. Is 
there a way to run the code in some kind of parallel fashion so that I 
don't need to wait for one block to finish before the other starts?
for i=1:length(DJI)
DJI2(i,1)=datenum(char(DJI(i,2)),'yyyy-mm-dd');
DJI2(:,2:6) = reshape(str2num(strvcat(DJI(:,3:7)(:)), length(DJI(:,3:7))));
end