TODOs for APW

[smoh]

• Could you check two TODO: APW items in the manuscript?
• Could you also check whether everything makes sense for dxdv and orbit plot and edit accordingly? (Gala citation etc.)
• Do you know a reference for vertical action as age indicator?
• Difference in posterior sample is posterior sample of difference, is it not?
• I cannot get natbib citation of Myles+2017 in prep to appear properly as "Myles et al. 2017, in prep.".

Some wordings I changed:

• You say "median posterior sample" which I changed to "median of the posterior sample". Sample is a set ${x_i}$ of numbers for variable $x$, and I understood it as you took the median value (a scalar) of this set for each variable (x,y,z,vx,vy,vz).

[adrn]

• will do!
• will do!
• I don't - will think on this
• Yes, modulo some independence assumptions
• I've always just manually typed in, e.g.: (Myles et al., in prep.)

RE: wording. Actually, no that's not quite right. A sample from a probability distribution is a thing, and it's not a sample as in a set of values. Check out: https://www.merriam-webster.com/dictionary/sample A single sample from a pdf, e.g., p(x, y, z) could be a single vector (x, y, z). The median posterior sample is a well-defined thing: it's the posterior sample (from a sampling, which we get back from MCMC) at the 50th percentile in each dimension.

[adrn]

(Realizing that "sample" is just one of those totally overloaded words in English...ugh)

[smoh]

OK, I think I got the meaning correctly, but just found that wording strange. How is "median of posterior samples, then? Anyway I'll leave that up to you. On Thu, Jun 8, 2017 at 7:31 PM Adrian Price-Whelan notifications@github.com wrote:

(Realizing that "sample" is just one of those totally overloaded words in English...ugh)

— You are receiving this because you were assigned. Reply to this email directly, view it on GitHub https://github.com/smoh/KronosKrios/issues/4#issuecomment-307255264, or mute the thread https://github.com/notifications/unsubscribe-auth/ABUf88xuzAvWwUOpZqeIMnFYVjnUubd1ks5sCIRmgaJpZM4N0tZo .

-- Semyeong

[smoh]

(Let me know if my understanding of the meaning, not of the word sample, was also wrong) On Thu, Jun 8, 2017 at 7:47 PM Semyeong Oh semyeong.oh@gmail.com wrote:

OK, I think I got the meaning correctly, but just found that wording strange. How is "median of posterior samples, then? Anyway I'll leave that up to you. On Thu, Jun 8, 2017 at 7:31 PM Adrian Price-Whelan < notifications@github.com> wrote:

(Realizing that "sample" is just one of those totally overloaded words in English...ugh)

— You are receiving this because you were assigned. Reply to this email directly, view it on GitHub https://github.com/smoh/KronosKrios/issues/4#issuecomment-307255264, or mute the thread https://github.com/notifications/unsubscribe-auth/ABUf88xuzAvWwUOpZqeIMnFYVjnUubd1ks5sCIRmgaJpZM4N0tZo .

-- Semyeong

-- Semyeong

[adrn]

I think you got the meaning