[social4i size="small" align="align-left"][This article was first published onR - datawookie, and kindly contributed toR-bloggers]. (You can report issue about the content on this pagehere)Want to share your content on R-bloggers?click hereif you have a blog, orhereif you don't.The distances of Hasler kayak races for various divisions are nominally 4, 8 and 12 miles. However, the actual distances vary to some degree from one race venue to another. This makes it difficult to compare race times across different races. Using data fromPaddle UKI attempt to estimate the actual distances.Background ...继续阅读 (35)

[social4i size="small" align="align-left"][This article was first published onR/exams, and kindly contributed toR-bloggers]. (You can report issue about the content on this pagehere)Want to share your content on R-bloggers?click hereif you have a blog, orhereif you don't.New CRAN releases of the R/exams package and the accompanying exams2forms package with many new features and enhancements, especially for the written multiple-choice exams (NOPS).OverviewThe new version 2.4-2 of theR/examspackage has been released on the Comprehensive R Archive Network athttps://CRAN.R-project.org/package=exa ...继续阅读 (36)

最近头痛时不时复发，只能强制自己远离工作的紧张节奏，专注于自我的平和。某种意义上，我其实很适合高强度的工作。压力越大，越是冷静。这可能是以前工作训练出来的，也可能是飞行执照训练出来的。当周围的人都进入狂暴模式的时候，我却一如既往的淡定，稳如泰山。我可以一个个劝住，在大家都手足无措的时候指明方向。工作是长跑，是漫长的登山，越是困难越让我冷静。某种意义上，我其实是很适合硅谷的丛林法则的。这也可能是这么多年来我在工作上并没有遇到太多天花板，一直能找到突破的方向的缘故。不给自己设限，也便有了无数的可能。但是，退一万步讲，这真的是我想要的生活吗？功名利禄，好像并没有我真正在乎的。钱变成了数字，让我感觉越来越陌生。我的生活质量并没有因为钱而变得更高，反而失去的时间和自由让我会不时感到窒息。最快乐的日子并不是多了多少标签，而是沉浸在自我的世界中专注。能感受到自己还活着，并非行尸走肉。年龄越大，越觉得自己跟同龄人的割裂，一种宛如代际的割裂感。他们的高谈阔论，我的诗与远方。我试图融入，可是越融入越痛苦。索性不再假装，索性回归本心。 人生苦短，何必过多地向现实妥协。或许我太早地被经济学的功利主义洗脑，却也侥幸早早得以看清功利主义的局限。愿我可得一世自由。 ...继续阅读 (38)

[social4i size="small" align="align-left"][This article was first published onR-Blog on Data modelling to develop ..., and kindly contributed toR-bloggers]. (You can report issue about the content on this pagehere)Want to share your content on R-bloggers?click hereif you have a blog, orhereif you don't.IntroductionThis blog is about the improved function,quicksummaryin theDyn4castpackage. The function provides quick overview of data and particularly outputting five different means.Observational study involves procuring large mass of data for analysis and modeling. So, there is always need to ...继续阅读 (32)

[social4i size="small" align="align-left"][This article was first published onr on Everyday Is A School Day, and kindly contributed toR-bloggers]. (You can report issue about the content on this pagehere)Want to share your content on R-bloggers?click hereif you have a blog, orhereif you don't.In my simulations of Response Adaptive Randomization, I discovered it performs comparably to fixed 50-50 allocation in identifying treatment effects. The adaptive approach does appear to work! However, with only 10 trials, I’ve merely scratched the surface. Important limitations exist – temporal bi ...继续阅读 (32)

[social4i size="small" align="align-left"][This article was first published onr.iresmi.net, and kindly contributed toR-bloggers]. (You can report issue about the content on this pagehere)Want to share your content on R-bloggers?click hereif you have a blog, orhereif you don't.Mont Blanc – CC-BY-NC-ND by Viktor KirilkoSome OpenStreetMapelementshave Wikidataentitiesas attributes, like for example the summit ofMont Blanchas the key/value pairwikidata=Q583directing toMont Blancwhere we can see it has the correct identifier “OpenStreetMap node ID” (P11693) directing back to the point281399025; and ...继续阅读 (34)

[social4i size="small" align="align-left"][This article was first published onrstats on Irregularly Scheduled Programming, and kindly contributed toR-bloggers]. (You can report issue about the content on this pagehere)Want to share your content on R-bloggers?click hereif you have a blog, orhereif you don't.How well do you know your fundamental operators in different languages? ‘Easy’ examples help to fortify that knowledge, and comparing across languages makes for some neat implementation detail discoveries.I sawthis toot from@gregeganSFon MastodonPost by@gregeganSF@mathstodon.xyzView on Mast ...继续阅读 (33)

[social4i size="small" align="align-left"][This article was first published onYohann's blog, and kindly contributed toR-bloggers]. (You can report issue about the content on this pagehere)Want to share your content on R-bloggers?click hereif you have a blog, orhereif you don't.Debugging code in an everyday (often painful) task for developers. In a recent video, I presentedhow to debug R code in RStudio IDE.Two native functions available natively in R were shown :browser()anddebugonce(). They are very useful to debug your code.debugonce()is a function that allows you to debug a function t ...继续阅读 (32)

[social4i size="small" align="align-left"][This article was first published onR – Michael's and Christian's Blog, and kindly contributed toR-bloggers]. (You can report issue about the content on this pagehere)Want to share your content on R-bloggers?click hereif you have a blog, orhereif you don't.In this post, we show how differentuse casesrequire differentmodel diagnostics. In short, we compare (statistical)inferenceandprediction.As an example, we use a simple linear model for the Munich rent index dataset, which was kindly provided by the authors ofRegression – Models, Methods an ...继续阅读 (34)

[social4i size="small" align="align-left"][This article was first published onR on Nicola Rennie, and kindly contributed toR-bloggers]. (You can report issue about the content on this pagehere)Want to share your content on R-bloggers?click hereif you have a blog, orhereif you don't.The30 Day Chart Challengeis a data visualisation challenge organised by Cédric Scherer and Dominic Royé. Participants make one chart each day of the challenge, inspired by the daily prompt. The prompts are also split across 5 different categories, which for 2025 were comparisons, distributions, relationships, time ...继续阅读 (34)

[social4i size="small" align="align-left"][This article was first published onStat's What It's All About, and kindly contributed toR-bloggers]. (You can report issue about the content on this pagehere)Want to share your content on R-bloggers?click hereif you have a blog, orhereif you don't.Given an ordinal regression model, it is relatively easy to get class-wise predictions – the conditional predicted probability of each level of the outcome. However,often, one might be interested in summarizing effects not on the class-wise probability scale (nor on the latent scale), but in ...继续阅读 (33)

In today’s hyperconnected world, customer expectations are higher than ever. People want fast, personalized, and round-the-clock support, regardless of business size or industry. For growing companies, meeting these expectations can be a challenge. That’s where a customer service virtual assistant can make a big impact. With the support of reliable virtual assistant companies in the […]The postHow to Improve Customer Experience with a Customer Service Virtual Assistantappeared first onJ L I Blog. ...继续阅读 (30)

[social4i size="small" align="align-left"][This article was first published onR – Michael's and Christian's Blog, and kindly contributed toR-bloggers]. (You can report issue about the content on this pagehere)Want to share your content on R-bloggers?click hereif you have a blog, orhereif you don't.From time to time, the following questions pop up:How to calculate grouped counts and (weighted) means?What are fast ways to do it in R?This blog post presents a couple of approaches and then compares their speed with a naive benchmark.Base RThere are many ways to calculate grouped counts ...继续阅读 (27)

吾十有五而志于学，三十而立，四十而不惑，五十而知天命，六十而耳顺，七十而从心所欲，不逾矩年轻的时候并不是很能读懂这段话，年纪大了才恍然时间快进。现在的日子基本上是 知天命、耳顺、从心所欲的阶段了。每天看着聒噪的人群，我已经心生羡慕。和长者的间隙已经远远小于和二十多岁年轻人的代沟。是从什么时候开始，经历了什么，让我的人生越来越勇敢，也越来越无所谓了呢。初心还在吗，还在的。梦想还在吗，还在的。那一束束不曾泯灭的光亮，闪耀着年少与年长。放下的越多，只能说明人越来越老，力不从心。跨越千山万里，只为回眸一笑，是一种人生。和猫一起睡到天昏地暗，也是一种人生。习惯了疯狂之后，人生好像也没什么界限了。从心所欲，不逾矩，却也不设限。 ...继续阅读 (37)

As energy prices continue to rise in the Philippines, more homeowners are looking for ways to save on electricity without sacrificing comfort. One often overlooked area is the water heater. A well-chosen unit can significantly reduce power consumption while still providing the hot water needed for daily routines. For households seeking smarter energy use, exploring […]The postEnergy-Efficient Water Heating Solutions for Filipino Householdsappeared first onJ L I Blog. ...继续阅读 (31)

[social4i size="small" align="align-left"][This article was first published onR Works, and kindly contributed toR-bloggers]. (You can report issue about the content on this pagehere)Want to share your content on R-bloggers?click hereif you have a blog, orhereif you don't.In March, one hundred eighty-two new packages made it to CRAN. Here are my Top 40 picks in sixteen categories: Agriculture, Archaeology, Biology, Climate Modeling, Computational Methods, Data, Ecology, Epidemiology, Genomics, Machine Learning, Medicine, Risk Forecasting, Statistics, Time Series, Utilities, and Visualization.A ...继续阅读 (22)

[social4i size="small" align="align-left"][This article was first published ongeocompx, and kindly contributed toR-bloggers]. (You can report issue about the content on this pagehere)Want to share your content on R-bloggers?click hereif you have a blog, orhereif you don't.This is the first part of a blog post series on spatial machine learning with R.The R language has a variety of packages for machine learning, and many of them can be used for machine learning tasks in a spatial context (spatial machine learning). Spatial machine learning is generally different from traditional machine learn ...继续阅读 (29)

[social4i size="small" align="align-left"][This article was first published onR/exams, and kindly contributed toR-bloggers]. (You can report issue about the content on this pagehere)Want to share your content on R-bloggers?click hereif you have a blog, orhereif you don't.Cloze exercise in which two randomly-selected Cardinal vowels have to be described according to the three parameters vowel height, frontness-backness, and lip rounding.Name:vowelsType:clozePreview:Describe the following Cardinal vowels according to the three parameters vowel height, frontness-backness, and lip rounding:[e] is ...继续阅读 (33)

[social4i size="small" align="align-left"][This article was first published onR/exams, and kindly contributed toR-bloggers]. (You can report issue about the content on this pagehere)Want to share your content on R-bloggers?click hereif you have a blog, orhereif you don't.Single-choice knowledge quiz question in which the correct flag for a country has to be selected from a list of flags.Name:flagsType:schoiceRelated:capitals,countrycodesPreview:Which is the flag of Bolivia?False.is the flag of Chile.True.is the flag of Bolivia.False.is the flag of Peru.False.is the flag of Brazil.False.is the ...继续阅读 (31)

[social4i size="small" align="align-left"][This article was first published onA Statistician's R Notebook, and kindly contributed toR-bloggers]. (You can report issue about the content on this pagehere)Want to share your content on R-bloggers?click hereif you have a blog, orhereif you don't.1IntroductionYou trust R². Should you?You proudly present a model with R² = 0.95. Everyone applauds.But what if your model fails miserably on the next new data?When building a statistical model, one of the first numbers analysts and data scientists often cite is theR², or coefficient of determination. ...继续阅读 (29)

[social4i size="small" align="align-left"][This article was first published onR-posts.com, and kindly contributed toR-bloggers]. (You can report issue about the content on this pagehere)Want to share your content on R-bloggers?click hereif you have a blog, orhereif you don't.Join our workshop onsurveydown: An Open-Source, Markdown-Based Platform for Interactive and Reproducible Surveys, which is a part of our workshops for Ukraine series!Here’s some more info:Title:surveydown: An Open-Source, Markdown-Based Platform for Interactive and Reproducible SurveysDate:Thursday, May 29th, 18:00 – 20:0 ...继续阅读 (19)

《耕织图》是南宋时期楼璹以诗配画的方式绍耕织技术的著作。此《耕织图》卷传为元代程棨摹绘宋代楼璹本。分作：耕作图（自浸种至入仓共二十一节）、蚕织图（自浴蚕至剪帛共二十四节）两卷。各节附标题及五言诗一首，诗文用篆书（另配楷书小字）。此两卷现藏于弗瑞尔·赛克勒美术馆。 ...继续阅读 (40)

[social4i size="small" align="align-left"][This article was first published onR/exams, and kindly contributed toR-bloggers]. (You can report issue about the content on this pagehere)Want to share your content on R-bloggers?click hereif you have a blog, orhereif you don't.Exercise template for a very basic arithmetic task, namely computing the sum of two random numbers minus their difference.Name:sumdiffType:numRelated:derivPreview:By how much is the sum of the numbers 52 and 30 greater than the difference between these numbers?The result of the calculation is (52 + 30) – (52 – 30) ...继续阅读 (16)

[social4i size="small" align="align-left"][This article was first published ondata-in-flight, and kindly contributed toR-bloggers]. (You can report issue about the content on this pagehere)Want to share your content on R-bloggers?click hereif you have a blog, orhereif you don't.I’m thrilled to announce the release ofschematic, an R package that helpsyou(the developer) communicate data validation problems to non-technical users. With schematic, you can leveragetidyselectselectors and other conveniences to compare incoming data against a schema, avoiding punishing issues caused by invalid or po ...继续阅读 (21)

[social4i size="small" align="align-left"][This article was first published ondatascienceconfidential - r, and kindly contributed toR-bloggers]. (You can report issue about the content on this pagehere)Want to share your content on R-bloggers?click hereif you have a blog, orhereif you don't.IntroductionDynamic Stochastic General Equilibrium (DSGE) models are a class of models which attempt to model the entire economy of a nation. The purpose of this post is to hand-code a DSGE model in R, fit it to data, and check that the results agree with the software packages Dynare and gEcon.I got intere ...继续阅读 (16)

[social4i size="small" align="align-left"][This article was first published onrOpenSci - open tools for open science, and kindly contributed toR-bloggers]. (You can report issue about the content on this pagehere)Want to share your content on R-bloggers?click hereif you have a blog, orhereif you don't.Before sending DELETE THE INDEX_CACHE and re-knit!Dear rOpenSci friends, it’s time for our monthly news roundup!blablaYou can read this poston our blog. Now let’s dive into the activity at and around rOpenSci!rOpenSci HQEvent: Career Paths for U.S. Federal Data ScientistsrOpenSci and Openscapes ...继续阅读 (21)

[social4i size="small" align="align-left"][This article was first published onR – Xi'an's Og, and kindly contributed toR-bloggers]. (You can report issue about the content on this pagehere)Want to share your content on R-bloggers?click hereif you have a blog, orhereif you don't.At theColumbia workshoplast week, Andre Wibisono presented work related with arecent arXivalon the exponentially fast convergence of both unadjusted Langevin and  proximal sampler algorithms under strong [definitely strong] log-concavity assumptions. The idea behind the proximal sampler is to target the demar ...继续阅读 (20)

[social4i size="small" align="align-left"][This article was first published onR on Zhenguo Zhang's Blog, and kindly contributed toR-bloggers]. (You can report issue about the content on this pagehere)Want to share your content on R-bloggers?click hereif you have a blog, orhereif you don't.Zhenguo Zhang’s Blog /2025/04/26/r-how-to-create-an-error-barplot-with-overlaid-points-using-ggplot/ –library(ggplot2) library(dplyr)Sometimes you may want to create a plot with the following features:a point to indicate the mean of a grouperror bars to indicate the standard deviation of the ...继续阅读 (18)

此《童蒙必读书》由清代涂宗瀛辑编。全书包含：弟子规、小儿语、弟子职、程子四箴、范氏心箴、朱子敬斋箴、朱子小学题辞、陈氏忍字箴、性理字训、训蒙千字文等十四种家塾理学训蒙课本。此为清光绪九年武昌书局校刊本，手书上板，字大墨莹。 ...继续阅读 (39)

墨问便签这款产品，最初是用来做 demo 的，试试小程序的能力。另外，有一点纪念之前做的锤子便签的意味，就取了个名字，叫墨问便签。没想到这个小产品慢慢有了生命，形成了社区，小程序的能力可以承载图文、音频、视频和订阅等很多功能，于是 demo 转正，我们在 2023 年 10 月 28 日正式发布了墨问便签 1.0。时至今日，墨问便签早就跳出了便签的范畴，有了 AI 和社区属性，未来我们肯定会做 Web 版本。所以我想给它一个独立的名字，就叫墨问好了。事实上墨友们有很长一段时间都是这么叫的。二爷说，批准。这等同于 TheFacebook 改名为 Facebook。毕竟，Google 原名是 BackRubApple Computer 改成了 AppleTheFacebook 改名为 Facebook墨问便签改为墨问，一切就算是对了。这么地吧，撒个花[庆祝][庆祝][庆祝]https://note.mowen.cn/note/detail?noteUuid=jbJv5KSkoUPQfmFWVhY1o2025年4月22日 ...继续阅读 (28)