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LindsE
Posts:
113
Registered:
2/4/07
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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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