Search Results
Search type | Search syntax |
---|---|
Tags | [tag] |
Exact | "words here" |
Author |
user:1234 user:me (yours) |
Score |
score:3 (3+) score:0 (none) |
Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
Views | views:250 |
Code | code:"if (foo != bar)" |
Sections |
title:apples body:"apples oranges" |
URL | url:"*.example.com" |
Saves | in:saves |
Status |
closed:yes duplicate:no migrated:no wiki:no |
Types |
is:question is:answer |
Exclude |
-[tag] -apples |
For more details on advanced search visit our help page |
1
vote
Accepted
Problem with simulate $X$ with $X|Y = y \sim Exp(y)$ and $Y \sim Exp(1.5)$
The standard approaches (Sturges, Freedman/Diaconis, etc.) generally work fine but those don't work well for some distributions. …
1
vote
0
answers
23
views
How useful is exchangeability for non-extendible sequences?
Bernardo and Smith (1994, Sec. 4.7) discuss a result of Diaconis and Freedman (1980) on finite exchangeable sequences showing that if the considered sequence can be extended to an exchangeable sequence …
1
vote
0
answers
141
views
How Minitab calculate optimize number of bins of a normal distribution histogram
I used minitab to draw a normal distribution histogram and saw that the number of bins in that graph doesn't follow any rules to calculate bin size that I know of (sturge, square-root, rice, freedman-diaconis …
4
votes
Bayes update rule studied as an operator
properties of Bayesian updating --- e.g., looking at the "frequentist consistency" of Bayesian analysis under correct or incorrect model specification in a range of model classes (see e.g., Berk 1970, Diaconis … and Freedman 1986, Barron, Schervish and Wasserman 1999, Ghosal, Ghosh and van der Vaart 2000, Shen and Wasserman 2001, Walker 2009, Shalizi 2009). …
5
votes
How do we find probability of a binary event occurring in continuous space?
parametric form and then you would have a parametric binary regression model, or you might simply assume some simple smoothness properties and decide to use a nonparametric binary regression model (see e.g., Diaconis … and Freedman 1993). …
2
votes
1
answer
603
views
Methods to identify the optimal number of bins between two groups
I am aware of Sturge’s and Freedman-Diaconis rules. … I am looking for an equation/ test, similar to Sturge’s and Freedman-Diaconis rules, that can do this. …
4
votes
What to do when IQR returns 0 in Freedman-Diaconis' rule?
If you look at R's hist.default function, the nclass.FD function computes the number of bins for Freedman-Diaconis rule. …
0
votes
Determining an optimal discretization of data from a continuous distribution
Freedman-Diaconis, prescribes a formula for determining a bin width that minimizes the integral of squared error between the resulting histogram and "underlying/true" probability distribution. … Shimazaki-Shinomoto is similar in flavour to Freedman-Diaconis.
Variations on the histogram is a bit different from the two above, and is related to creating histograms with "equal-area" per bin. …
0
votes
1
answer
262
views
Computing histogram bins with insensitivity to domain scale
Currently, I'd like to use the Freedman-Diaconis rule for determine bin widths:
$h=2\times\text{IQR}\times N^{-1/3}$ (where $h$ is the bin width). … The problem with this is that each dataset would have a different IQR, and thus a different recommendation for the bin width according to Freedman-Diaconis. …
1
vote
Rounding in Sturges' formula
Two other rules in common use include 'Freedman-Diaconis' and 'square root'. … log2(10000)
[1] 13.28771
set.seed(606)
x = rexp(10000, .01)
hist(x)
By contrast, the Freedman-Diaconis rule suggests between 85 and 90 bins. …
3
votes
Accepted
What to do when IQR returns 0 in Freedman-Diaconis' rule?
hist(x1, col="skyblue2") # 1
hist(x, col="skyblue2") # 2
hist(x, br=3*b, col="skyblue2") # 3
par(mfrow=c(1,1))
# return to single-panel plots
I'm not claiming that R uses the Freedman-Diaconis …
3
votes
2
answers
785
views
What to do when IQR returns 0 in Freedman-Diaconis' rule?
For discretization, I'm using Freedman-Diaconis rule which computes the optimal number of bins which will be given input to KBinsDiscretizer. … Freedman-Diaconis' rule states that,
$$ \text{bin width}, h=2\frac{\operatorname{IQR}(x)}{n^{1/3}} $$
$$ \text{number of bins}, k = \frac{range(x)}{h} $$
The column has $32561$ values. …
22
votes
Accepted
Realistically, does the i.i.d. assumption hold for the vast majority of supervised learning ...
There is another useful extension by Diaconis and Freedman (1980) that establishes a representation theorem for cases of finite exchangeability --- roughly speaking, in this case the values are "almost …
5
votes
0
answers
719
views
Intuitive understanding of the Aldous-Hoover representation theorem for row-column exchangea...
Diaconis, Freedman (1980): Finite exchangeable sequences, Ann. Prob. 8, 745 https://doi.org/10.1214/aop/1176994663.
Diaconis, Freedman (1981): On the statistics of vision: The Julesz conjecture, J. … Diaconis, Janson (2008): Graph limits and exchangeable random graphs, Rend. Matematica 28, 33 http://www1.mat.uniroma1.it/ricerca/rendiconti/ARCHIVIO/2008(1)/33-61.pdf. …
0
votes
1
answer
30
views
Given a large data set, generated from a known distribution, what are the best approaches to...
Freedman–Diaconis rule or the square-root-$N$ rule, and get the count number for each bin centre and then fit the function to these coordinates. …