3575 search results for "Gis"

Reading OECD.Stat into R

March 1, 2014
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Reading OECD.Stat into R

OECD.Stat is a commonly used statistics portal in the research world but there are no easy ways (that I know of) to query it straight from R. There are two main benefits of querying OECD.Stat straight from R: 1. Create reproducible analysis (something that is easily lost if you have to download excel files) 2.

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Use GDAL from R Console to Split Raster into Tiles

March 1, 2014
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Use GDAL from R Console to Split Raster into Tiles

When working with raster datasets I often encounter limitations caused by the large size of the files. I thus wrote up a little R function that invokes gdal_translate which would split the raster into parts.The screenshot to the left shows a raster in QGIS that was split into four parts with the below script.## get filesnames...

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Individuals and Moving Range Charts in R

March 1, 2014
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Individuals and Moving Range Charts in R

Individuals and moving range charts, abbreviated as ImR or XmR charts, are an important tool for keeping a wide range of business and industrial processes in the zone of economic production, where a process produces the maximum value at the minimum costs. While there are many commercial applications that will produce such charts, one of

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“Statistical Models with R” Course – Milano, October 24-25, 2013

February 28, 2014
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“Statistical Models with R” Course – Milano, October 24-25, 2013

"Statistical Models with R" CourseMarch 27 and 28, 2014 Course description This two-day course shows a wide variety of statistical models with R ranging from Linear Models (LM) to Generalized Linear Models (GLM) modelling, in order to provide a broad … Continue reading →

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rMaps Mexico map

February 26, 2014
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rMaps Mexico map

It's exciting when great people help each other get things done This is a simple networking story, which not be surprising to some but I was happily surprised by it. This is how the story goes: Two weeks ago rMaps (Vaidyanathan, 2014) was released. After making a

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Create a GENCODE transcript database in R

February 25, 2014
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The following gist will help the researchers in creating the gencode transcript database using the bioconductor packages. I am assuming that the user's computer has preinstalled packages "GenomicRanges" and "GenomicFeatures". Following script has the f...

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Genetic data, large matrices and glmnet()

February 25, 2014
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Genetic data, large matrices and glmnet()

Recently talking to a colleague, had contact with a problem that I had never worked with before: modeling with genetic The post Genetic data, large matrices and glmnet() appeared first on Flavio Barros .

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The forecast mean after back-transformation

February 24, 2014
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The forecast mean after back-transformation

Many functions in the forecast package for R will allow a Box-Cox transformation. The models are fitted to the transformed data and the forecasts and prediction intervals are back-transformed. This preserves the coverage of the prediction intervals, and the back-transformed point forecast can be considered the median of the forecast densities (assuming the forecast densities on the transformed scale...

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Quick and dirty notes on General Linear Mix Models

February 24, 2014
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Quick and dirty notes on General Linear Mix Models

My datasets tend to have random factors. I try to stick to general models whenever I can to avoid dealing with both random factors and complex error distributions (not always possible). I am compiling some notes here to avoid visiting … Continue reading →

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twitteR now supports database persistence

February 23, 2014
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For a long time now I've wanted to add the ability for storing data from twitteR into a RDBMS. In the past I've done things by concatenating new results onto old results which simply becomes unwieldy. I know that many people have doctored up their own ...

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