Bar plot for (No of observation per day) vs time?

Hi everyone,

How can I plot Number of observation s4>=0.2 vs time;

data=xlsread('1608_1.xls');
data_filterr=find(data(:,25)>60);
data_filtered=data(data_filterr,:);
elev_cutof20=find(data_filtered(:,6)>=15);
data_cutoff15=data_filtered(elev_cutof20,:);
r=data_cutoff15(:,2);
time=((r./3600)-24*1);
s4r=data_cutoff15(:,8);
s4cor=data_cutoff15(:,9);
s4=sqrt(s4r.^2-s4cor.^2);

[Mahdi]

I'm not sure of what you're asking, but I think the bar function might help you.