jbowman

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1026
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location Berkeley, CA, USA
age 56
visits member for 1 year, 7 months
seen Mar 2 at 17:09
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I am currently an independent consultant located in Berkeley, Ca. Formerly I was a statistician at the now-defunct SolFocus, Inc., a concentrating photovoltaic technology company. Lots of work around estimating how much energy we'd get out of a particular site! And reliability work too, of course. Prior to that, I worked for a number of years in Hewlett-Packard's Strategic Planning and Modeling (SPaM) group, an industry award-winning internal, and occasionally external, consulting organization, and as an independent consultant.


190 Answers

newest activity votes
2
Rolling analysis with out-of sample
jan 7 '12 at 21:46
0
Generating a 3-month half life weighting series in R
jan 6 '12 at 18:41
5
Convert SAS NLMIXED code for zero-inflated gamma regression to R
jan 1 '12 at 21:44
3
How to fit a lognormal distribution in Python?
jan 5 '12 at 18:40
4
Sampling variables and calculating likelihood in WinBUGS/OpenBUGS
jan 5 '12 at 1:23
3
Simultaneous confidence intervals for multinomial parameters, for small samples, many classes?
jan 4 '12 at 21:10
37
Where did the frequentist-Bayesian debate go?
jan 3 '12 at 21:14
8
How is the bayesian framework better in interpretation when we usually use uninformative or subjective priors?
jan 3 '12 at 1:23
3
Is there a GLS estimator that has lower variance than OLS for sum of parameters in linear model under Gauss-Markov conditions?
jan 2 '12 at 22:34
1
Using Kolmogorov–Smirnov test
jan 2 '12 at 16:23
5
Non-nested model selection
jan 1 '12 at 17:41
3
Is it possible to compute a covariance matrix with unequal sample sizes?
jan 1 '12 at 22:04
1
How to transform data to normality?
jan 1 '12 at 20:18
3
Random number generation for gaussian, cauchy and levy
dec 31 '11 at 20:31
1
Significance of a group answer to a question
dec 31 '11 at 22:22
7
Examples of hidden Markov models problems?
dec 30 '11 at 18:28
2
Hidden markov models: output observations defined by a (non-hidden) markov model?
dec 30 '11 at 16:53
1
Modeling multinomial problems with unknown sample size in BUGS
dec 30 '11 at 16:35
4
How to specify Bayesian mixed effects model in BUGS
dec 27 '11 at 18:07
3
Testing that a sample corresponds to an arbitrary distribution
dec 26 '11 at 20:43
1
How to implement rounding in BUGS in a survey context?
dec 23 '11 at 16:34
1
How to combine step(x) and dbern(p) in JAGS/WinBUGS?
dec 22 '11 at 22:27
3
Selection of priors for a BYM spatial regression model
dec 22 '11 at 20:11
6
How to implement dummy variable using n-1 variables?
dec 22 '11 at 16:45
5
Means of groups A and B differ significantly. Can I build a Classifier that will classify values into A or B?
dec 22 '11 at 15:10
1
How to convert this equation into an equation where I can use regression to estimate coefficients?
dec 21 '11 at 23:33
2
Testing two-tailed p-values using Stouffer's approach
dec 21 '11 at 19:32
2
Closed form solution for the expectation of the square root of a hypergeometric variate
dec 20 '11 at 23:16
2
Effect of moving average parameter on variability and variance of demand
dec 20 '11 at 15:18
4
Cross-validation with sampling weights
dec 19 '11 at 21:20
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