INTRO: Hi I plot arbitrary data against date ticks for hours of the day as below:
%Get traffic count data
load count.dat% Create arrays for an arbitrary date, here April 18, 1995
n = length(count);year = 1990 * ones(1,n);month = 4 * ones(1,n);day = 18 * ones(1,n);% Create arrays for each of 24 hours;
hour = 1:n;minutes = zeros(1,n);% Get the datenums for the data (only hours change)
xdate = datenum(year,month,day,hour,minutes,minutes);% Plot the traffic data against datenums
plot(xdate,count)% Update the graph's x-axis with date ticks
datetick('x','HHPM')
GOAL: I want to display the XTicks and modified the following lines:
h=subplot(1,1,1);plot(xdate,count);set(h,'XTick',xdate)datetick(h,'x','HH','keepticks')
QUESTION: Why do I need to use subplot to display the XTick? I have also the version suggested by Walter:
h = plot(xdate,count);haxis = ancestor(h, 'axes');set(haxis, 'XTick', xdate);datetick(haxis, 'x', 'HHPM')
but I still obtain the following error:
Error using setConversion to double from cell is not possible.
I wonder if someone could help me to correct these command lines and avoid the use of subplot.
Thank you in advance for your help
Emerson
Best Answer