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 Yearling
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1d
awarded  Yearling
Apr
18
answered Is there a package for Bayesian Linear Regression?
Apr
16
comment Tabular designs from modular arithmetic operations
For your first question, is MatrixPlot what you need?
Mar
30
comment How to implement Markov Chain Monte Carlo with built-in functions?
The book "Bayesian Logical Data Analysis for the Physical Sciences", by Phil Gregory, comes with a MCMC program in Mathematica. Look under Resources at bit.ly/1tdaYhG .
Feb
7
answered Entropy[…] doesn't calculate the entropy of a probability distribution? What does it do?
Jan
5
comment Mathematica 10.3+ freezes on first evaluation after start-up (Mac)
I have a similar problem with almost every program, not just Mathematica, when my Mac comes out of sleep mode (similar specs to Bob Hanlon's, but running OSX 10.10.5 ). My surmise is that when the CPU temperature (using iStat) is below ~40 degree C the machine does not perform well, especially when it needs reading and writing to the SSD. My suspicion is that the problem is in OSX. I once called Apple Care, but they had no clue.
Oct
3
awarded  Nice Answer
Sep
26
comment Diagonals of a regular octagon
The basic polytopes, up to 12 edges, are defined in Mathematica by their names. E.g. for an octagon you first execute Needs["Polytopes`"]. The Vertices[Octagon] gives the coordinates and NumberOfEdges[Octagon] the number of edges.
Sep
26
awarded  Informed
Sep
5
comment Mathematica doens't open on my mac. Used it yesterday night
I experience a similar problem under Mac OSX 10.10.5 when coming out of sleep mode. But not only with Mathematica 10.2.0, also other programs start up very slowly, e.g.TextEdit, Pages, Activity Monitor, ..., which are native Mac programs. I did not have this problem with 10.10.4. The only third party program I recently added is iStat (which I find very useful).
Jul
3
comment Dataset vs an association of associations
My understanding of Dataset and Association was greatly improved by watching, and listening(!), to these videos: Wolfram, YouTube, and YouTube.
Jul
2
comment Dataset vs an association of associations
Your assoc2lev merges two nested Associations similar to Association[a->x,b->y,Association[c->z]]. Although this is syntacticly correct, it is perhaps less error prone to write assoc2lev=<|1-><|"a1"->1,"a2"->2|>,2-><|"a1"->3,"a2"->4|>|>.
Jun
29
comment How to plot ternary density plots?
It appears that your tick marks are not parallel to the side they relate to, i.e. they are 60 degrees off. Compare yours with the other answers.
Jun
9
comment Show More Rows of Dataset
+1. This is very nice. Thanks!
May
28
comment How to perform Bayesian optimization with Mathematica?
There are very few pre-packed Bayesian expressions in Mathematica. I have recommended the book by Phil Gregory in another post ( mathematica.stackexchange.com/questions/66140/… ). It comes with a large Mathematica notebook.
May
20
comment Simple way to concatenate Dataset columns
I am actually surprised that Join works on Dataset-s, since the documentation states that Join works Association objects (in Details). There is no mention of Dataset-s.
May
19
comment Simple way to concatenate Dataset columns
+1. I regard the Association[.] as the more fundamental data structure and I use Dataset[.] as a mere wrapper to limit large outputs.
May
4
awarded  Yearling
Apr
17
comment Export PDF margins different in V9 & V10 compared with version 7
A4 paper is 595x842 printer points and your ImageSize->{x,y} is larger than that. So the Graphics must be scaled to fit onto one physical A4 page. Mathematica version 8.0 gives the same result as your version 9 image.
Feb
14
comment Computational Bayesian analysis in Mathematica: Any plans to develop MCMC?
I don't know whether WRI has any plans for developing MCMC. However, Phil Gregory has developed a MCMC package in Mathematica. You can download it at bit.ly/1tdaYhG under "Resources". BTW, I can recommend his book "Bayesian Logical Data Analysis for the Physical Sciences" in which he explains MCMC at length.