Holtman's levelplot ?
Michel, If you ask your plotting questions over at r-help at r-project.org, Jim Holtman will probably address them directly. He is also an instructor for my "Guerrilla Data Analysis Techniques" class http://www.perfdynamics.com/Classes/Outlines/gdata.html and we just discussed this plot 2 weeks ago. --Neil Gunther Taking The Pith Out Of Performance http://perfdynamics.blogspot.com/ Follow me on Twitter http://twitter.com/DrQz Performance Dynamics Company http://www.perfdynamics.com/
From: Michel Lutz <miclutz at gmail.com> To: Brian G. Peterson <brian at braverock.com> Cc: "r-sig-hpc at r-project.org" <r-sig-hpc at r-project.org> Sent: Tue, August 24, 2010 3:45:49 AM Subject: Re: [R-sig-hpc] Holtman's levelplot ? Brian, Thank you for you answer. Here enclosed the result I would like to get (levelplot.jpg) and an example of input file (CPU.csv, reflecting date as M/DD/YYY hh:mm and CPU as %). So what I would like to have is a matrix with x = minutes within a day (here with a 30min interval) and y = days of the month, and colors plotted in this frame to reflect the CPU usage level. but... well, I' ve tried and tried this morning, but I cannot show anything... my ideas are too stupid (trust me, I spend time on this, I'm not looking for a ready-to-use piece of code). After further testing, I think I should forget this idea : I am not enough aware of the lattice package to go this way... too many settings that I don't know. I'm afraid won't be able to do it alone. So if someone has simple ideas or documentation for me to start building this solution, I will appreciate, but if you consider this is too complex for a lattice-beginner, I will understand. I any case, thank you very much for having taken time to answer me. Best regards, Michel On Tue, Aug 24, 2010 at 12:15 PM, Brian G. Peterson <brian at braverock.com>
wrote:
OK, good start. Now follow the posting guide and show something you've tried, and tell everybody what you expect, and what doesn't work...
It will be difficult for people to help you if you don't provide a reproducible
example. I also suggest emailing the package maintainer, and possibly r-help, if what I've suggested above doesn't resolve the problem for you. Regards, - Brian On 08/24/2010 03:47 AM, Michel Lutz wrote: Hello to all,
I am sorry for disturbing you, but I really don't know where/who to ask...
so if this distribution list is not dealing with my concern, please excuse
me...
Here is my concern : I am trying to do a levelplot as in Holtman, 2005
(Visualization techniques for analysing patterns in system performance
data), to display CPU usage according to the day of the month (y) and
minutes (x).
I am familiar with R basic features, but not at all with lattice package and
I don't understand the logic of this leveplot function, especially in the
particular case of a time series.
I've read all the material found in the web, but I am completely stuck...
Does someone have some clues or documentation that could help me to draw
such a plot ? (which is nothing new : the plot I'm dreaming of is the
Holtman's levelplot !).
Thank you very much, and excuse-me if I'm not addressing the right
distribution list.
Best regards,
Michel Lutz
France - PhD Student
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