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Questions tagged [convergence]

Convergence generally means that a sequence of a certain sample quantity approaches a constant as the sample size tends to infinity. Convergence is also a property of an iterative algorithm to stabilize on some aim value.

1 vote
1 answer
49 views

I am modeling count data with a non-Poisson distribution and potential zero inflation in glmmTMB. I am using different distributions and zero inflation specifications, including Conway Maxwell Poisson,...
mce's user avatar
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4 votes
3 answers
512 views

In introductory statistics courses, the central limit is often explained in one of several ways. It's often explained with pictures like However, these pictures seem misleading, because they suggest ...
user124910's user avatar
1 vote
0 answers
68 views

Consider a discrete stochastic system with components $(x_k, y_k)$ updated as follows. If all components are strictly positive, i.e. $x_k > 0$, $y_k > 0$, then \begin{aligned} x_{k+1} &= x_k ...
octave's user avatar
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0 votes
0 answers
50 views

Suppose a distribution function $F(\cdot)$ is continuous. For some $\tau \in (0, 1)$, the $\tau$th quantile is defined as $$ Q_\tau = \inf \{ x : F(x) \ge \tau \}. $$ For an i.i.d. sample $X_1, \dots, ...
Chia's user avatar
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2 votes
0 answers
76 views

EDIT: adding a bit of context. I'm working with electronic health records, meaning each information per participant or number of measurements per participant is highly different. The event is ...
Javier Hernando's user avatar
0 votes
0 answers
65 views

I'm researching the statistical convergence properties of a recursive system that arises during the training of custom neural network structure. My specific question is: How can I prove convergence of ...
Guillaume's user avatar
3 votes
1 answer
121 views

In short: Could you share any references that explore the assessment of "convergence" and mean-estimate precision in MCMC by means of quantiles (or related quantities), rather than of ...
5 votes
1 answer
146 views

I am trying to do a multilevel analysis looking at trends in a dichotomous variable over time within multiple clusters. I have 22 years of data for each cluster. [My example data has only 8 clusters, ...
WanderingEpi's user avatar
0 votes
0 answers
59 views

I want to know if the following problem has a name and also I'd like to get some papers to read on the subject. Suppose I have a model to learn, say $A$ and this has a huge numbers of parameters to ...
user8469759's user avatar
1 vote
0 answers
47 views

I am trying to understand the statistical properties of \textbf{Maximum A Posteriori (MAP)} estimators for loss functionals with desirable properties. In my setting, let $n$ denote the number of ...
Goulifet's user avatar
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0 votes
0 answers
112 views

My statistics professor says: Let $X_n \xrightarrow{d} X$, $Y_n \xrightarrow{d} y$, where $y$ is some constant. Suppose for generality that $X \in \mathbb{R}^n$, and $y \in \mathbb{R}^m$. Then $$\...
rudinable's user avatar
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0 votes
0 answers
230 views

Consider a correctly specified linear model $$ y_i = x_i^\top \beta + \varepsilon_i,\quad i=1,\dots,n, $$ where the errors $\varepsilon_i$ are independent with zero mean and finite variance. ...
spie227's user avatar
  • 242
2 votes
0 answers
71 views

I previously asked this question at math.stackexhange. Suppose you have a population $X_n$ at integer time $n$ where the probability that each individual independently produces another individual at ...
Henry's user avatar
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2 votes
1 answer
191 views

According to the monotone convergence theoerem (Beppo Levi), for any monotone increasing sequence with random variable $X_n : \Omega \rightarrow [0,∞]$ with probability space $([0,1], \mathscr B([0,1])...
Antoine Augustin Cournot's user avatar
7 votes
1 answer
270 views

A recent discussion suggests that even when the data generating process (DGP) is non-iid, if we can sample many independent sample paths (or cross-sectional blocks) from the same DGP, we can ...
spie227's user avatar
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