المشاركات

عرض المشاركات من نوفمبر, 2021

2021-04 Luminance Masks in R Graphics

This document describes an extension of the support for masks in R graphics to allow luminance masks as well as alpha masks. Paul Murrell Download Continue reading: 2021-04 Luminance Masks in R Graphics http://dlvr.it/SDWKJ6

Gold-Mining Week 13 (2021)

Week 13 Gold Mining and Fantasy Football Projection Roundup now available. The post Gold-Mining Week 13 (2021) appeared first on Fantasy Football Analytics. Continue reading: Gold-Mining Week 13 (2021) http://dlvr.it/SDW1Fp

Lagged Predictors in Regression Models and Improving by Bootstrapping and Bagging

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Huge lines at gas stations have been seen around Turkey in recent days. Under the reason for this is the rise in the prices so often, in the last few months and the expectation to continue this. Of course, it is known that the rise in the exchange rate (US ... Continue reading: Lagged Predictors in Regression Models and Improving by Bootstrapping and Bagging http://dlvr.it/SDVfWg

R shiny web apps at scale on AWS with ShinyProxy

YakData SmartManager for ShinyProxy on AWS Securely share R shiny web apps at scale in minutes The production-ready way to securely share R shiny web apps & R Markdown docs on AWS at scale, saving you time, money & aggravation. On the AWS Marketplace 🔒 SECURE SHARING The production-ready way to securely share ... Continue reading: R shiny web apps at scale on AWS with ShinyProxy http://dlvr.it/SDVCNG

A Hiring Manager’s review of the Google Data Analytics Professional Certificate syllabus

30 November 2021 “Is the Google Data Analytics Professional Certificate any good?” Whether you’re a job seeker looking to boost your career or a hiring manager eager to find skilled staff, this is a pertinent question. In this review, I assess the certificate based on the syllabus, and not the … The ... Continue reading: A Hiring Manager’s review of the Google Data Analytics Professional Certificate syllabus http://dlvr.it/SDT3Hm

October 2021: “Top 40” New CRAN Packages

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One hundred forty-one new packages made it to CRAN in October. Here are my “Top 40” picks in twelve categories: Computational Methods, Data, Genomics, Machine Learning, Medicine, Networks, Science, Social Science, Statistics, Time Series, Utilities, and Visualization. Computational Methods gslnls v1.0.2: Implements an R interface to nonlinear least-squares optimization with the ... Continue reading: October 2021: “Top 40” New CRAN Packages http://dlvr.it/SDRM24

AWS Athena dplyr unload

RBloggers|RBloggers-feedburner Intro: This is a quick update on the latest features for RAthena and noctua 2.4.0. Latest features: dbplyr: RAthena and noctua now fully supports dbplyr backend api 2+. dplyr database generics will be deprecated in... Continue reading: AWS Athena dplyr unload http://dlvr.it/SDR17j

EARL 2021 charity donation

After another fantastic EARL Conference held online this September, we are delighted to share that we were able to donate... The post EARL 2021 charity donation appeared first on Mango Solutions. Continue reading: EARL 2021 charity donation http://dlvr.it/SDQZyD

Why R? 2021 agenda is almost there!

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We are 2 weeks before the fifth edition of Why R? 2021 conference. Even though we were planning to release the full agenda at the end of this week, we already have the 95% of the program available on our youtube.com/WhyRFoundationVideos channel. Go an... Continue reading: Why R? 2021 agenda is almost there! http://dlvr.it/SDQ3Sl

Durability Testing of Stents Using Sensitivity-Based Methods in R

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The current industry protocol for durability testing of vascular stents and frames involves testing many implants simultaneously at a range of different stimulus magnitudes (typically strain or stress). The test levels are spread out like a grid across the stimulus range of interest. Each implant is tested to failure or ... Continue reading: Durability Testing of Stents Using Sensitivity-Based Methods in R http://dlvr.it/SDNx6D

Vector Autoregressive Model (VAR) using R

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This post gives a brief introduction to the estimation and forecasting of a Vector Autoregressive Model (VAR) model using R . We use vars and tsDyn R package and compare these two estimated coefficients. We also consider VAR in level and VAR in diff... Continue reading: Vector Autoregressive Model (VAR) using R http://dlvr.it/SDMYk6

Predicting viewership for #TidyTuesday Doctor Who episodes

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This is the latest in my series of screencasts demonstrating how to use the tidymodels packages, from just getting started to tuning more complex models. Today’s screencast walks through how to handle workflow objects, with this week’s #TidyTuesday ... Continue reading: Predicting viewership for #TidyTuesday Doctor Who episodes http://dlvr.it/SDLWYH

Custom Formats in gt Tables

The “grammar of tables” is used to build tables with the R-package gt. Thomas Mock published an extension package called gtExtras which is used all over in tweets about NFL and Fantasy Football such as win and loss history information in a table. gt follows a similar philosophy such as ... Continue reading: Custom Formats in gt Tables http://dlvr.it/SDKN1l

Gold-Mining Week 12 (2021)

Week 12 Gold Mining and Fantasy Football Projection Roundup now available. The post Gold-Mining Week 12 (2021) appeared first on Fantasy Football Analytics. Continue reading: Gold-Mining Week 12 (2021) http://dlvr.it/SDGtRx

How to go from R to nice tables in Microsoft Word

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As scientists, we often have data or results in R that we want to export to Microsoft Word for the reports or publications that we’re writing. In this tutorial I show you how to do just that. You can also watch this tutorial as a video if you want ... Continue reading: How to go from R to nice tables in Microsoft Word http://dlvr.it/SDGtRl

How to Build Interactive Google Maps With R Shiny – A Complete Guide

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Visualizing spatial data in R is oftentimes more challenging than it initially seems. There’s a ton of moving parts, like map center point, zoom, map type, marker size, and so on. And then there’s cartographic design and managing aesthetic appeal along with the functional elements. It goes without ... Continue reading: How to Build Interactive Google Maps With R Shiny – A Complete Guide http://dlvr.it/SDGtRS

Eskisehir R Users Group in Turkey Talks About Pushing Boundaries During the Lockdown

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The R consortium talked to Mustafa CAVUS of the Eskisehir R Users Group (also on Twitter) about handling group activities during the pandemic. Mustafa shared that online events during the... The post Eskisehir R Users Group in Turkey Talks About Pushing Boundaries During the Lockdown appeared first on R Consortium. Continue reading: Eskisehir R Users Group in Turkey Talks About Pushing Boundaries During the Lockdown http://dlvr.it/SDGtRB

Backstage: The Hitchhiker’s Guide to Responsible Machine Learning

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A month ago we released an educational comic in the area of Responsible Machine Learning/Explanatory Model Analysis titled ,,The Hitchhiker’s Guide to Responsible Machine Learning’’. In 52 pages we present methods, tools and good practices for building... Continue reading: Backstage: The Hitchhiker’s Guide to Responsible Machine Learning http://dlvr.it/SDGtNT

simstudy update: adding flexibility to data generation

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A new version of simstudy (0.3.0) is now available on CRAN and on the package website. Along with some less exciting bug fixes, we have added capabilities to a few existing features: double-dot variable reference, treatment assignment, and categori... Continue reading: simstudy update: adding flexibility to data generation http://dlvr.it/SC9JzQ

Building Code Movies With flipbookr

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Photo by Alex Litvin on Unsplash This is a guest post from Gina ReynoldsOpens a new window with contributions from Rachel Goodman, Luca Picci, Conner Surrency, and Brit Woodrum, who provided research assistance while completing their Masters’ at the University of Denver’s Josef Korbel School of International Studies. Gina ... Continue reading: Building Code Movies With flipbookr http://dlvr.it/SC8XV3

Lies, damned lies, and rankings: the problem with Bloomberg’s COVID resilience ranking

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Every ranking creates winners and losers. In the case of Bloomberg’s Covid Resilience Ranking, the Philippines is a loser: dead …Continue reading → Continue reading: Lies, damned lies, and rankings: the problem with Bloomberg’s COVID resilience ranking http://dlvr.it/SC8DXB

Starting the South Coast MA UseR Group: A first year in review

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By Amanda Hart, Co-organizer of South Coast MA UseR Group 2020 was a year of firsts: first global pandemic in my lifetime, first year working remotely, first year not traveling... The post Starting the South Coast MA UseR Group: A first year in review appeared first on R Consortium. Continue reading: Starting the South Coast MA UseR Group: A first year in review http://dlvr.it/SC7PPt

{binance} Spot Trading: Liquidity

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In previous posts we looked at creating market orders and limit orders with {binance}. We saw a couple of successful trades. However, sometimes trades are not successful and the orders are not filled. Let’s try to understand why. The setup will be the same as the previous posts and ... Continue reading: {binance} Spot Trading: Liquidity http://dlvr.it/SC5lCZ

Markov Transition (Animated) Plots

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This is a quick post intended for animating how the transition matrix of a Markov chain changes between larger time steps, as well as showing the probability of the chain being in any specified state over time. This post uses the tidyverse, along with ... Continue reading: Markov Transition (Animated) Plots http://dlvr.it/SC5Jq9

Why You Should Use RStudio Connect Authentication And How to Set It Up

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When it comes to securing your application, the first thing that comes to mind is protecting access with proper authentication. This means only allowing people that you create accounts for to access your platform. RStudio Connect authentication makes this process relatively easy with options for either internal or external authentication ... Continue reading: Why You Should Use RStudio Connect Authentication And How to Set It Up http://dlvr.it/SC4lRW

Time series cross-validation using `crossvalidation` (Part 2)

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Time series cross-validation using `crossvalidation`, with validation on unseen data. Continue reading: Time series cross-validation using `crossvalidation` (Part 2) http://dlvr.it/SC4lQv

GooglyPlusPlus2021 now with power play, middle and death over analysis

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This latest edition of GooglyPlusPlus2021 now includes detailed analysis of teams, batsmen and bowlers in power play, middle and death overs. The T20 format is based on 3 phases as each side faces 20 overs. Power play: Overs: 0 – 6 – No more than 2 players can be outside the 30 yard circle Middle … Continue reading GooglyPlusPlus2021 ... Continue reading: GooglyPlusPlus2021 now with power play, middle and death over analysis http://dlvr.it/SC48Pc

Bond Forward Pricing using R code

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This post presents a R code for pricing a bond forward. It is well known that insurance companies use it as the instrument of a duration management with lower cost. Here, a pricing formula and its implementation are provided with delta sensitivity u... Continue reading: Bond Forward Pricing using R code http://dlvr.it/SC2Nrk

Benchmarking Rcpp code with RcppClock

Rcpp is all about the need for speed. However, Rcpp code is not magically fast, but is the result of careful coding and profiling. RcppClock makes it easy to profile C++ code from R: On the C++ side, RcppClock wraps std::chrono::high_resolution_clo... Continue reading: Benchmarking Rcpp code with RcppClock http://dlvr.it/SC2NrL

How to Plot Observed and Predicted values in R

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Plot Observed and Predicted values in R, In order to visualize the discrepancies between the predicted and actual values, you may want to plot the predicted values of a regression model in R. This... The post How to Plot Observed and Predicted values in R appeared first on finnstats. Continue reading: How to Plot Observed and Predicted values in R http://dlvr.it/SC1Rh1

The Return Distribution of Bitcoin

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A look at daily and monthly bitcoin return distributions. Which distribution best describes the observed data. And, what does this mean from a portfolio management perspective? Continue reading: The Return Distribution of Bitcoin http://dlvr.it/SC067j

Spatial resampling for #TidyTuesday and the #30DayMapChallenge

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This is the latest in my series of screencasts demonstrating how to use the tidymodels packages, from just getting started to tuning more complex models. Today’s screencast walks through how to use spatial resampling for evaluating a model, with this... Continue reading: Spatial resampling for #TidyTuesday and the #30DayMapChallenge http://dlvr.it/SBzWct

Find optimal portfolios using particle swarm optimisation in R

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In the last post we explored how to build a particle swarm optimiser from scratch. In this post, let’s explore how we can leverage such an optimiser to perform mean variance optimisation to find optimal portfolios that satisfy certain constraints... Continue reading: Find optimal portfolios using particle swarm optimisation in R http://dlvr.it/SBz5nj

{binance} Spot Trading: Limit Orders

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In the previous post we looked at creating market orders on Binance using the {binance} package. Today we’re going to dig into limit orders. Market Orders & Limit Orders What’s the difference between a market order and a limit order? I’m so glad you asked. In the BTC/... Continue reading: {binance} Spot Trading: Limit Orders http://dlvr.it/SBybnt

Under The Same Name: Journal titles and band names

Some journals sound like they should be bands. Whereas some journal titles ARE in fact the same as band names. I wondered… how many journal titles are also band names. Let’s find out! The journals cited in PubMed could be downloaded as a text file from here. This list ... Continue reading: Under The Same Name: Journal titles and band names http://dlvr.it/SBvfvC

An R Community Public Library

If you haven’t recently visited bookdown.org, RStudio’s free site for publishing books written with the bookdown R package, you many be amazed at what is available. Currently, there are over one hundred fifty titles listed under the Books tab. These are written in a panoply of languages ... Continue reading: An R Community Public Library http://dlvr.it/SBvft7

error: No CurrentVersion entry in Software/JavaSoft registry!

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error: No CurrentVersion entry in Software/JavaSoft registry!. When receiving the following problem while trying to install package xlxs in R. Error: package or namespace load failed for ‘xlsx’: .onLoad failed in loadNamespace() for 'rJava',... The post error: No CurrentVersion entry in Software/JavaSoft registry! appeared first on finnstats. Continue reading: error: No CurrentVersion entry in Software/JavaSoft registry! http://dlvr.it/SBsyn9

RStudio Community Monthly Events – November 2021

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Photo by Nick Morrison on Unsplash Welcome to RStudio Community Monthly Events Roundup, where we update you on upcoming events happening at RStudio this month. Missed the great talks and presentations from last month? Find them listed under ICYMI: October 2021 Events. You can subscribeOpens a new window to the Community ... Continue reading: RStudio Community Monthly Events – November 2021 http://dlvr.it/SBrvXz

Bump chart of Scottish greenhouse gas emissions

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Which sectors contribute to Scottish GHG emissions? Continue reading: Bump chart of Scottish greenhouse gas emissions http://dlvr.it/SBqYTy

EARL competition winner

You may remember that we launched a competition last month to celebrate the EARL Conference taking place. The competition was... The post EARL competition winner appeared first on Mango Solutions. Continue reading: EARL competition winner http://dlvr.it/SBqYRG

One-N against the world!

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We’re taking a short break from neural networks to return to portfolio optimization. Our last posts in the portfolio series discussed risk-constrained optimization. Before that we examined satisificing vs. mean-variance optimization (MVO). In our last post on that topic, we simulated 1,000 60-month (5-year) return series using the 1987-1991 period ... Continue reading: One-N against the world! http://dlvr.it/SBnx8L

Announcing RStudio on Amazon SageMaker

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Data Science in the Cloud As more organizations migrate their data science work to the cloud, they naturally want to bring along their favorite data science tools, including RStudio, R, and Python. These organizations are embracing the cloud to achieve various goals, including to: Simplify and reduce startup costs. Promote ... Continue reading: Announcing RStudio on Amazon SageMaker http://dlvr.it/SBnKVL

Enhancing Software Peer Review with GitHub Automation

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How to join this free online event with Arfon Smith, Karthik Ram, Maëlle Salmon and Noam Ross. Software peer-review involves coordinating and tracking many moving parts: software submissions, testing and diagnostics, assignment of editors and reviewers, and logging the progression of submissions through revisions and acceptance. On this call ... Continue reading: Enhancing Software Peer Review with GitHub Automation http://dlvr.it/SBnKTh

Gold-Mining Week 9 (2021)

Week 9 Gold Mining and Fantasy Football Projection Roundup now available. The post Gold-Mining Week 9 (2021) appeared first on Fantasy Football Analytics. Continue reading: Gold-Mining Week 9 (2021) http://dlvr.it/SBm0KB

User authentication in R Shiny – sneak peek of shiny.users and shiny.admin packages

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Update August 2020: We are sorry to inform you that shiny.users package development has been suspended. We currently have no plans to continue development. Although there is significant interest in a Shiny authorization package, the effort to maintain and improve our early release was unsustainable and we decided to use ... Continue reading: User authentication in R Shiny – sneak peek of shiny.users and shiny.admin packages http://dlvr.it/SBlQ7Y

Scheduling Rmarkdown files on Windows – your foolproof guide

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You’ve written a great rmarkdown file, and now you want to run it at a set time every day. You’ve tried the Windows Task Scheduler, you’ve pointed it at your markdown file, and you’ve gone off to make some coffee safe in the knowledge that your ... Continue reading: Scheduling Rmarkdown files on Windows – your foolproof guide http://dlvr.it/SBkNnf

{ExclusionTable} a package for keeping track of exclusions and inclusions

In today’s blog post we will take a look at a package that allows you to keep track of the number of observations that you in- or exclude from your dataset or study population. In epidemiological studies we often want to limit our study population based on some inclusion ... Continue reading: {ExclusionTable} a package for keeping track of exclusions and inclusions http://dlvr.it/SBjnQl

Smooth flow maps and a new edge bundling algorithm

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This post introduces new features of edgebundle, an R package that implements several edge bundling/flow and metro map algorithms. In this post, I will introduce edge-path bundling (paper) and smooth flow maps. Given that edge bundling is mostly u... Continue reading: Smooth flow maps and a new edge bundling algorithm http://dlvr.it/SBjnNY

Little useless-useful R functions – Interactive Voronoi diagram generator using R and x11()

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Yes. Finally, the Voronoi diagrams with the use of x11() function. This diagram is presentation of a plane that is partitioned every time, a user clicks on the canvas of x11. This plane is partitioned into smaller regions that are…Read more › Continue reading: Little useless-useful R functions – Interactive Voronoi diagram generator using R and x11() http://dlvr.it/SBh1xY

{binance} Spot Trading: Market Orders

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Functionality for working with spot trades is now available in {binance}. In this post we’ll establish some background on spot trading and then explore some of the spot trading functions in {binance}. Setup First we’ll load the package. library(binance) packageVersion("binance") [1] ‘0.0.3’ We’ll be using the Binance ... Continue reading: {binance} Spot Trading: Market Orders http://dlvr.it/SBgVgY