Equal probability bins
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Any clues on how to create equal probability vs equal length bins for a chi2 test for an exponential distribution? Your help will be appreciated!
回答（1 个）
Tom Lane
2012-4-19
The "edges" variable here seems to be what you need if you want 6 bins and your exponential distribution has mean 5.5:
>> n = 6;
>> edges = expinv((0:n)/n,5.5)
edges =
0 1.0028 2.2301 3.8123 6.0424 9.8547 Inf
>> diff(expcdf(edges,5.5))
ans =
0.1667 0.1667 0.1667 0.1667 0.1667 0.1667
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2012-4-19
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