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Topic: Rank Histogram (Talagrand Diagram)
Replies: 1   Last Post: Oct 3, 2012 1:10 AM

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LindsE

Posts: 113
Registered: 2/4/07
Rank Histogram (Talagrand Diagram)
Posted: Apr 10, 2007 11:54 AM
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Good day;

I am attempting to create a rank histogram with a total of 6960 data
points. I do not entirely understand this concept, and was wondering
if anyone could provide me with a basic step-by-step how-to?! Here's
what I've been trying to follow:

To construct a rank histogram, do the following:
1. At every observation (or analysis) point rank the N ensemble
members from lowest to highest. This represents N+1 possible bins that
the observation could fit into, including the two extremes
2. Identify which bin the observation falls into at each point
3. Tally over many observations to create a histogram of rank

Here's what I don't follow:
1) If I have 6960 points; should there be 6961 bins?
2) I've grouped by data into 10 sets. I tried arranging these points
in ascending order, for each group, but I don't think this is what I
should be doing. Any suggestions as to how to 'translate' the above
steps into beginner language?

Thanks;
Lindsay




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