960 search results for "shiny"

A Shiny App for estimating Multiplier Exponent Curves from Manning’s Equation Inputs

August 22, 2016
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A Shiny App for estimating Multiplier Exponent Curves from Manning’s Equation Inputs

WASP and other flow and water quality models ask users to input multiplier and exponent values relating velocity and depth to discharge. These relationships take the form of V=aQ^b and depth=cQ^d, where the values a, b, c, and d describe the curve that approximates paired points from other sources. When paired field measurements are lacking, Manning's equation provides an...

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colourpicker: A colour picker widget for Shiny apps, RStudio, R-markdown, and ‘htmlwidgets’

August 15, 2016
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colourpicker: A colour picker widget for Shiny apps, RStudio, R-markdown, and ‘htmlwidgets’

Have you ever wanted to allow your users to select colours in your Shiny apps? Have you ever wanted to select a few colours to use in your R code, but found it tedious to search for the right colours? If you answered yes to any of those quest...

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A Shiny App for Passing Bablok and Deming Regression

A Shiny App for Passing Bablok and Deming Regression

Background Back in 2011 I was not aware of any tool in R for Passing Bablok (PB) regression, a form of robust regression described in a series of three papers in Clinical Chemistry and Laboratory Medicine (then J Clin Chem and Biochem) available here, here and here. For reasons that are not entirely clear to … Continue...

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Effluent Nutrient Concentrations by Waste Water Treatment Type: A Shiny App

August 12, 2016
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Effluent Nutrient Concentrations by Waste Water Treatment Type: A Shiny App

In 2014, EPA documented the relative lack of nutrient data from waste water treatment plant effluents, even though development of surface water quality standards for nitrogen and phosphorus has been a stated priority for more than a decade.   A new shiny app lets users explore effluent nutrient concentrations from an existing data...

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Plotting GPX tracks with Shiny and Leaflet

August 5, 2016
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Plotting GPX tracks with Shiny and Leaflet

Lately, I got the chance to play around with Shiny and Leaflet a lot - and it is really fun! So I decided to catch up on an old post of mine and build a Shiny application where you can upload your own GPX files and plot them directly in the browser.Of course,...

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Data Visualisation (+Shiny app)

July 29, 2016
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by Nic Crane Data visualisation is a key piece of the analysis process.  At Mango, we consider the ability to create compelling visualisations to be sufficiently important that we include it as one of the core attributes of a data … Continue reading →

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Monte Carlo Analysis of Manning’s Equation: A Shiny App

July 20, 2016
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Monte Carlo Analysis of Manning’s Equation:  A Shiny App

Monte Carlo analysis is a great way to explore the impact of input variable uncertainty on the results of engineering equations, and with vector variables and distribution and sampling functions at its core, R is a natural platform for this analysis. During a recent rainy vacation, I built a Shiny app that applies...

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Some Thoughts On Shiny Open Source: Render Multiple Pages

June 26, 2016
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Some Thoughts On Shiny Open Source: Render Multiple Pages

This is the 2nd post of a series of 3 posts that discuss how to use Open Source Shiny Server a bit more wisely. The topic of this post is multiple page rendering and the Read More ...

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A Shiny app to help interpret GW-Degree estimates in ERGMs

June 26, 2016
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A Shiny app to help interpret GW-Degree estimates in ERGMs

Most researchers are misinterpreting geometrically weighted degree (GWD) estimates in exponential random graph models (ERGMs) of networks. By a 3:1 ratio papers cite positive estimates of GWD as indicative of a popularity or centralization force; in fact, positive estimates indicate dispersion of edges. Shiny app Here is a Shiny app that allows you to examine the effects of GWD parameter...

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Shiny + archivist = reproducible interactive exploration

June 26, 2016
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Shiny + archivist = reproducible interactive exploration

Shiny is a great tool for interactive exploration (and not only for that). But, due to its architecture, all objects/results that are generated are stored in a separate R process so you cannot access them easily from your R console. In some cases you may wish to retrieve a model or a plot that you … Czytaj dalej...

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