Re: Re: Re: Re: Data averages by time of day

So are you looking to group the day into "day parts" of the same size each day,

I'm actually trying graph the averages in a chart when I'm done. (wish I could put an image in this post!)

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Comment on Re: Re: Re: Re: Data averages by time of day

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Re: Re: Re: Re: Re: Data averages by time of day by simonm (Vicar) on Feb 26, 2004 at 18:04 UTC
I encountered a related challenge recently, charting blood pressure numbers over the course of several months. My conclusion: while averages are nice, full data spreads are even better. In addition to your averaging, try just doing a traditional scatter plot: time of day along the x axis, result values along the y axis, and a dot on the chart for every data point. Once you've done that, things like the average for some time period or the outlines of the daily curve tend to become visually apparent, even to someone who isn't fluent in statistics.	[reply]

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Re: Re: Re: Re: Re: Data averages by time of day
by simonm (Vicar) on Feb 26, 2004 at 18:04 UTC

My conclusion: while averages are nice, full data spreads are even better.

In addition to your averaging, try just doing a traditional scatter plot: time of day along the x axis, result values along the y axis, and a dot on the chart for every data point.

Once you've done that, things like the average for some time period or the outlines of the daily curve tend to become visually apparent, even to someone who isn't fluent in statistics.

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