2197 search results for "time series"

Dual axes time series plots with various more awkward data

August 27, 2016
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Dual axes time series plots with various more awkward data

In my most recent blog post I introduced the dualplot() R function, which allows you to create time series plots with two different scales on the vertical axes in a way that minimises the potential problems of misinterpretation. See that earlier post ...

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Five problems (and one solution) with dual-axis time series plots

August 19, 2016
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Five problems (and one solution) with dual-axis time series plots

If you need to present two time series spanning the same period, but in wildly different scales, it's tempting to use a time series chart with two separate vertical axes, one for each series, like this one from the Reserve Bank of New Zealand: Charts like this typically have one or more crossover points, and that crossing imparts meaning...

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Dual axes time series plots may be ok sometimes after all

August 17, 2016
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Dual axes time series plots may be ok sometimes after all

Are they really as bad as all that? I’ve been mulling over time series charts with two different y axes, which are widely deprecated in the world of people who see ourselves as professional data workers. Looking down on dual axis time series charts ...

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Access and Analyze 170 Monthly Climate Time Series Using Simple R Scripts

August 2, 2016
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Access  and Analyze 170 Monthly Climate Time Series Using Simple R Scripts

Open Mind, a climate trend data analysis blog, has a great Climate Data Service that provides  updated consolidated csv file with 170 monthly climate time series. This is a great resource for those interested in studying climate change. Quick, reliable … Continue reading →

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Time Series Analysis in ArcGIS

July 15, 2016
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Time Series Analysis in ArcGIS

In this post I will introduce another toolbox I created to show the functions that can be added to ArcGIS by using R and the R-Bridge technology.In this toolbox I basically implemented the functions I showed in the previous post about time series analy...

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Time series charts by the Economist in R using Plotly

July 11, 2016
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In this post we’ll recreate two info graphics created by The Economist. The code uses the new Plotly 4.0 syntax. Note: Plotly 4.0 has not been officially released yet. You can download the dev version using Volume of google searches related to immigrating to Canada AIDS related Visualization

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Time Series Analysis Using Max/Min… and some Neuroscience.

June 6, 2016
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Time Series Analysis Using Max/Min… and some Neuroscience.

Introduction Time series has maximum and minimum points as general patterns. Sometimes the noise present on it causes problems to spot general behavior. In this post, we will smooth time series -reducing noise- to maximize the story that data has to tell us. And then, an easy formula will be applied to find and plot max/min...

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zoo time series exercises

May 30, 2016
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zoo time series exercises

The zoo package consists of the methods for totally ordered indexed observations. It aims at performing calculations containing irregular time series of numeric vectors, matrices & factors. The zoo package interfaces to all other time series packages on CRAN. This makes it easy to pass the time series objects between zoo & other time series

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Additive modelling global temperature time series: revisited

March 25, 2016
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Additive modelling global temperature time series: revisited

Quite some time ago, back in 2011, I wrote a post that used an additive model to fit a smooth trend to the then-current Hadley Centre/CRU global temperature time series data set. Since then the media and scientific papers have been full of reports of record warm temperatures in the past couple of years, of controversies (imagined) regarding...

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Analysis of Xbox Usage Trends with R: Time Series Decompositions

February 23, 2016
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Analysis of Xbox Usage Trends with R: Time Series Decompositions

by Daniel Moore Director of Applied Statistics Engineering, Console Development Microsoft In Xbox Hardware, we are interested in the various ways that our hardware is used, and we are especially interested in how that usage changes over time. We employ several several time series analysis techniques that are helpful in getting a holistic view of usage of the Xbox...

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