Comments on: Do time series charts really compare time series? http://blog.bissantz.com/shocking-time-series Bissantz ponders Mon, 05 Jul 2010 13:53:30 +0200 http://wordpress.org/?v=2.9.2 hourly 1 By: Logarithmic Axis Scales | Dashboard Examples - Samples - Tutorials http://blog.bissantz.com/shocking-time-series/comment-page-1#comment-4592 Logarithmic Axis Scales | Dashboard Examples - Samples - Tutorials Tue, 30 Sep 2008 00:29:00 +0000 http://blog.bissantz.com/?p=178#comment-4592 [...] Nicolas Bissantz wrote in Do time series charts really compare time series? about time series being difficult to compare. The chart he discussed showed the cost of energy for [...] […] Nicolas Bissantz wrote in Do time series charts really compare time series? about time series being difficult to compare. The chart he discussed showed the cost of energy for […]

]]> By: D Kelly O'Day http://blog.bissantz.com/shocking-time-series/comment-page-1#comment-4590 D Kelly O'Day Thu, 25 Sep 2008 21:31:10 +0000 http://blog.bissantz.com/?p=178#comment-4590 Nicolas: Very important post. Thanks for the refresher. I've written a recent <a href="http://chartsgraphs.wordpress.com/2008/09/25/logarithmic-scale-for-time-series-charts/" rel="nofollow"> post </a> on logarithmic scales that may be of interest. Kelly O'Day Nicolas:

Very important post. Thanks for the refresher.

I’ve written a recent post on logarithmic scales that may be of interest.

Kelly O’Day

]]> By: Sjoerd http://blog.bissantz.com/shocking-time-series/comment-page-1#comment-4587 Sjoerd Thu, 18 Sep 2008 17:45:21 +0000 http://blog.bissantz.com/?p=178#comment-4587 Great analysis. I read about it on Jon Peltier's blog, and commented on the use of different units. Jon suggested I copy my comment to his post to you as well: It would be even more useful if the data were all in the same units (i.e. cents per kWh) so that we can choose the most economic option. Using a typical heating value, 1 euro/100 liters fuel oil converts to 0.092 cents/kWh. So, 26.38 euro/100l = 2.43 cents/kWh and 58.63 euro/100l = 5.39 cents/kWh. This lands fuel oil just below natural gas. However, it is somewhat less attractive because it doesn’t burn as efficiently, and not as clean. Electricity is clearly the least attractive option. Great analysis. I read about it on Jon Peltier’s blog, and commented on the use of different units. Jon suggested I copy my comment to his post to you as well:

It would be even more useful if the data were all in the same units (i.e. cents per kWh) so that we can choose the most economic option.
Using a typical heating value, 1 euro/100 liters fuel oil converts to 0.092 cents/kWh. So, 26.38 euro/100l = 2.43 cents/kWh and 58.63 euro/100l = 5.39 cents/kWh. This lands fuel oil just below natural gas. However, it is somewhat less attractive because it doesn’t burn as efficiently, and not as clean.
Electricity is clearly the least attractive option.

]]> By: Jon Peltier http://blog.bissantz.com/shocking-time-series/comment-page-1#comment-4586 Jon Peltier Tue, 16 Sep 2008 13:51:48 +0000 http://blog.bissantz.com/?p=178#comment-4586 If you plot the price values on a logarithmic plot, you can compare relative changes by comparing slopes, as I describe in <a href="http://peltiertech.com/WordPress/2008/09/16/logarithmic-axis-scales/" rel="nofollow">Logarithmic Axis Scales</a>, my follow-up to your evocative post. If you plot the price values on a logarithmic plot, you can compare relative changes by comparing slopes, as I describe in Logarithmic Axis Scales, my follow-up to your evocative post.

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