Flash floods seem to be increasing in many areas. This post will show how to download local USGS flow and precipitation data and generate a 3-panel chart of flow, gage height and precipitation. There was a tragic flash flood incident … Continue reading →

Time series cross-validation is important part of the toolkit for good evaluation of forecasting models. forecast::tsCV makes it straightforward to implement, even with different combinations of explanatory regressors in the different candidate models...

Are you interested in guest posting? Publish at DataScience+ via your editor (i.e., RStudio). Category Visualizing Data Tags Best R Packages Data Visualisation R Programming 3D Plots built in the right way for the right purpose are always stunning. In this article, we’ll see how to make stunning 3...

I’ve been building R shiny apps for a while now, and ever since I started working with shiny, it has significantly increased the set of services I offer my clients. Here’s a documentations of some of the many lessons I learned in previous projec...

In this blog article, you will learn you how to set up a dashboard with the flexdashboard package, how to integrate interactive widgets and how to deploy the app on shinyapps.io. Der Beitrag Getting started with flexdashboards in R erschien zuerst auf STATWORX.

I was recently asked how to go about matching several datasets where different samples of individuals were interviewed. This sounds like a big problem; say that you have dataset A and B, and that A contain one sample of individuals, and B another sample of individuals, then how could you ...

What’s all this then? Hi. My name is Seth, and this is my new blog. I plan to use this blog to noodle around with the statistical programming language R, hopefully in fun and interesting ways, to continue to hone my programming and data analysis skills. I’ve been ...

If you are like me, and rather last minute about making a plan to get the most out of a large conference, you are just starting to think about JSM 2019 which will begin in just a few days. My plans always begin with an attempt to sleuth out the R-related ...

I have to confess that the core message of this post is not really a fresh saying. But if I was given a chance to deliver one dataviz advise to every (ha-ha-ha) listening mind, I’d choose this: forget multi-category bar plots and use dotplots instead.

FOSS4G conference wordcloud of abstracts. Code included!

This week my post is relatively short and very focused. What makes it interesting (at least to me) is whether it will be seen as a useful “bridge” between frequentist methods and bayesian methods or as an abomination to both! There’s some reasonably decent code and explanation in this ...

The problem Introduction and overview of gdalcubes Installation Demo dataset Creating image collections Creating and processing data cubes Chaining data cube operations User-defined functions Interfacing with stars Future work [v...

In this post I'll introduce a simple investing strategy that is well diversified and has been shown to work across different markets. In short, buying cheap and uptrending stocks has historically led to notably higher returns. The strategy is a combination of these two different investment styles, value and momentum. ...

In the previous article in this series, we showed that common ensemble models like random forest and gradient boosting are uncalibrated: they are not guaranteed to estimate aggregates or rollups of the data in an unbiased way. However, they can be preferable to calibrated models such as linear or generalized ...

For many R users, it’s obvious why you’d want to use R with big data, but not so obvious how. In fact, many people (wrongly) believe that R just doesn’t work very well for big data. In this article, I’ll share three strategies for thinking about ...

Your one-stop-shop for machine learning algorithms. Each algorithm is complete with a short description and links to examples. If you would like to take the algorithms with you, click the little 'embed' button in the lower left-hand corner.

Joe Cheng presented shinymeta enabling reproducibility in shiny at useR in July 2019. This is a simple application using shinymeta. You will see how reactivity and reproducibility do not exclude […]