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                <text> image denoising, patch-wise structural adaptive smoothing, total variation, nonlocal means, R.</text>
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                <text>Image reconstruction from noisy data has a long history of methodological development&#13;
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comparisons of local patches of image intensities to define local adaptive weighting schemes&#13;
for an improved balance of reduced variability and bias in the reconstruction result. We&#13;
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                <text>Large networks of queueing systems model important real-world systems such as&#13;
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way to infer parameters for such networks if we could simulate data quickly enough.&#13;
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of queueing networks with the R package queuecomputer. Remarkable speedups of more&#13;
than 2 orders of magnitude are observed relative to the popular DES packages simmer&#13;
and simpy. We replicate output from these packages to validate the package.&#13;
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with these two packages together. We show how to use this package with two examples:&#13;
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                <text>Queensland University&#13;
of Technology&#13;
ACEMS&#13;
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                <text>: R, data visualization, data analysis, graphics, grid, loon.</text>
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                <text>We describe the features and implementation of the R package zenplots (zigzag expanded navigation plots) for displaying high-dimensional data according to the recently&#13;
proposed zenplots.&#13;
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pattern where adjacent axes share the same variate. Zenplots are especially useful when&#13;
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meaningfully comparable, or when pairs of variates can be ordered in terms of potential&#13;
interest to view, or the number of pairs is too large for more traditional layouts such as&#13;
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dimensional subspaces along a zenpath (zenpath()) which orders the dimensions (i.e.,&#13;
variates) visited according to some measure of interestingness; see Hofert and Oldford&#13;
(2018) for an application to S&amp;P 500 constituent data.&#13;
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notion of zenplots, grouping of variates, and customizable displays of zigzag layouts. It&#13;
accommodates different graphical systems including the base graphics package of R Core&#13;
Team (2020b), the package grid of R Core Team (2020a) (and hence packages like ggplot2&#13;
of Wickham et al. 2020), and the interactive graphical package loon of Waddell and&#13;
Oldford (2020). zenplots handles groups of variates, partial and fully missing data, and&#13;
more. One important feature is that zenplot() and its auxiliary functions in zenplots&#13;
distinguish layout from plotting which allows one to freely choose and create one- and twodimensional plot functions; predefined functions are exported for all graphical systems.&#13;
All R plots in this paper are reproducible with the vignette "selected_features"&#13;
(available in zenplots ≥ 0.0-2).</text>
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                <text>The Data Envelopment Analysis Toolbox is a new package for MATLAB that includes&#13;
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code for the standard radial input, output and additive measures, allowing for constant&#13;
and variable returns to scale, as well as recent developments related to the directional&#13;
distance function, and including both desirable and undesirable outputs when measuring&#13;
efficiency and productivity; i.e., Malmquist and Malmquist-Luenberger indices. Bootstrapping to perform statistical analysis is also included. This paper describes the methodology and implementation of the functions, and reports numerical results using a reliable&#13;
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                <text>Universidad Autónoma de Madrid&#13;
Erasmus Research Institute of Management&#13;
Erasmus University Rotterdam</text>
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                <text>Fajar bagus W</text>
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                <text>: abundance, detection, JAGS, N-mixture model, R, R-INLA, unmarked, wildlife</text>
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                <text>Successful management of wildlife populations requires accurate estimates of abundance. Abundance estimates can be confounded by imperfect detection during wildlife&#13;
surveys. N-mixture models enable quantification of detection probability and, under appropriate conditions, produce abundance estimates that are less biased. Here, we demonstrate how to use the R-INLA package for R to analyze N-mixture models, and compare&#13;
performance of R-INLA to two other common approaches: JAGS (via the runjags package for R), which uses Markov chain Monte Carlo and allows Bayesian inference, and&#13;
the unmarked package for R, which uses maximum likelihood and allows frequentist inference. We show that R-INLA is an attractive option for analyzing N-mixture models&#13;
when (i) fast computing times are necessary (R-INLA is 10 times faster than unmarked&#13;
and 500 times faster than JAGS), (ii) familiar model syntax and data format (relative&#13;
to other R packages) is desired, (iii) survey-level covariates of detection are not essential,&#13;
and (iv) Bayesian inference is preferred</text>
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                <text>Timothy D. Meehan</text>
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                <text>https://www.jstatsoft.org/article/view/v095i02</text>
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Audubon Society</text>
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                <text>Fajar bagus W</text>
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                <text>: clustered data, covariance matrix estimator, object orientation, simulation, R.</text>
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                <text>Clustered covariances or clustered standard errors are very widely used to account for&#13;
correlated or clustered data, especially in economics, political sciences, and other social&#13;
sciences. They are employed to adjust the inference following estimation of a standard&#13;
least-squares regression or generalized linear model estimated by maximum likelihood.&#13;
Although many publications just refer to “the” clustered standard errors, there is a surprisingly wide variety of clustered covariances, particularly due to different flavors of bias&#13;
corrections. Furthermore, while the linear regression model is certainly the most important application case, the same strategies can be employed in more general models&#13;
(e.g., for zero-inflated, censored, or limited responses). In R, functions for covariances&#13;
in clustered or panel models have been somewhat scattered or available only for certain&#13;
modeling functions, notably the (generalized) linear regression model. In contrast, an&#13;
object-oriented approach to “robust” covariance matrix estimation – applicable beyond&#13;
lm() and glm() – is available in the sandwich package but has been limited to the case of&#13;
cross-section or time series data. Starting with sandwich 2.4.0, this shortcoming has been&#13;
corrected: Based on methods for two generic functions (estfun() and bread()), clustered and panel covariances are provided in vcovCL(), vcovPL(), and vcovPC(). Moreover, clustered bootstrap covariances are provided in vcovBS(), using model update()&#13;
on bootstrap samples. These are directly applicable to models from packages including&#13;
MASS, pscl, countreg, and betareg, among many others. Some empirical illustrations are&#13;
provided as well as an assessment of the methods’ performance in a simulation study</text>
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                <text>Fajar bagus W</text>
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