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Old 06-10-2013, 07:30 PM
ckimbrough ckimbrough is offline
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Default Clarification – Data Snooping and Tukey’s EDA

In John Tukey’s book “EDA” (Exploratory Data Analysis) we learn to use descriptive visual devices such as “stem and leaf” plots, box plots, smoothing sequences, etc.

These things require a lot of rooting around in the data set, is EDA data snooping? Or is it only data snooping if you let what EDA reveals about the data guide you to a specific hypothesis?
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Old 06-10-2013, 07:37 PM
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yaser yaser is offline
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Default Re: Clarification – Data Snooping and Tukey’s EDA

Quote:
Originally Posted by ckimbrough View Post
Or is it only data snooping if you let what EDA reveals about the data guide you to a specific hypothesis?
This is the essence of data snooping; affecting the choice of hypothesis without accounting for that in terms of expected generalization.
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Old 06-10-2013, 07:53 PM
ckimbrough ckimbrough is offline
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Default Re: Clarification – Data Snooping and Tukey’s EDA

Thank you Professor, I needed to relate it to something I know. Snooping will be difficult to realize you are doing, but I will always keep it in mind.

Thank you for all your efforts in this excellent and thoughtful course. I believe I am on my way now!
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