3857 search results for "Gis"

Alpha Testing RevoScaleR running in Hadoop

September 13, 2013
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by Joseph Rickert At Revolution Analytics our mission is to establish R as the driver for Enterprise level computational frameworks. In part, this means that a data scientist ought to be able to develop an R based application in one context, e.g. her local PC, and then get it moving by changing horses on the fly (so to speak)...

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Who uses E-Bikes in Toronto? Fun with Recursive Partitioning Trees and Toronto Open Data

September 12, 2013
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Who uses E-Bikes in Toronto?  Fun with Recursive Partitioning Trees and Toronto Open Data

I found a fun survey released to the Toronto Open Data website that investigates the travel/commuting behaviour of Torontonians, but with a special focus on E-bikes.  When I opened up the file, I found various demographic information, in addition to a … Continue reading →

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Direction of Change Forecasting using a Dynamic Binary Model

September 12, 2013
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Direction of Change Forecasting using a Dynamic Binary Model

While it is generally accepted that the returns of financial assets are almost impossible to forecast with any degree of accuracy which would provide meaningful profit1 , there is evidence that the sign of the returns is much more forecastable. Theoretically, Christoffersen and Diebold (2006) have shown how the forecastability of the sign is related

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Learn R and/or Data Management from Home October 7-11

September 11, 2013
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Learn R and/or Data Management from Home October 7-11

If you want to learn R, or improve your current R skills, join me for two workshops that I’m offering through Revolution Analytics in October. If you already know another analytics package, the workshop, Intro to R for SAS, SPSS … Continue reading →

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Online course on forecasting using R

September 10, 2013
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I am teaming up with Revolution Analytics to teach an online course on forecasting with R. Topics to be covered include seasonality and trends, exponential smoothing, ARIMA modelling, dynamic regression and state space models, as well as forecast accuracy methods and forecast evaluation techniques such as cross-validation. I will talk about some of my consulting experiences, and explain the...

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Coursera’s free R courses are running again soon

September 10, 2013
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The massively-online open course (MOOC) platform Coursera has already delivered two essential free courses for anyone who wants to learn the R language. Computing for Data Analysis, presented by Roger Peng, covers the basics of R programming. The follow-up course Data Analysis, presented by Jeff Leek, covers statistical modeling and data visualization with R. If you missed these courses,...

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Google Prediction API update

September 10, 2013
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A quick update on the last blog post...Mr Hadley Wickham has made the authentication for this much easier...Then you can use the curl script like in my last blog post.

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Loading Multiple Shapefiles to the R-Console Simultaneously

September 10, 2013
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A quick tip on how to load multiple shapefiles (point shapefiles, i.e.) to the R console in one go:library(sp)# get all files with the .shp extension from working directory setwd("D:/GIS_DataBase/GIS_Tirol/Tirol_Verbreitungskarten/Verbreitungs_Daten")shps # the assign function will take the string representing shp and turn it into a variable# which holds the spatial points datafor (shp in shps) assign(shp, readShapePoints(shp))# ...done

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Accessing FitBit data in R

September 9, 2013
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Accessing FitBit data in R

I caught a pretty amazing episode of Horizon (the BBC’s in depth science program in the UK) a while back called “The future of medicine is apps“. The programme explored the health benefits of giving people data about their body, … Continue reading →

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Ce que je sais sur les séries temporelles (1/5)

September 9, 2013
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Ce que je sais sur les séries temporelles (1/5)

Ce que je sais sur les séries temporelles (1/5) En lisant la préface de Flore Vasseur à l'essai “le monde en 2030 vu par la CIA”, j'ai été très frappé par mon manque de culture macroéconomique. En effet, un essaiqui parle de...

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