Blog Archives

A Talk About Campaign Finance in Brazil

October 16, 2015
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A Talk About Campaign Finance in Brazil

Last week, I delivered a talk at University of Brasilia about my past research on the topic of campaign finance. I didn’t know in advance about the existence of this seminar. Indeed, it was a big surprise receiving the invitation from Prof. Marcelo Pimentel, who is teaching on Fridays afternoon a class on this topic with more than 50...

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Understanding Margin of Error for Small Populations

October 13, 2015
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Understanding Margin of Error for Small Populations

I got an email today inquiring if the margin of error reported in the newest poll by Datafolha would possibly be misleading. The polling firm often report surveys with regular sizes (1000/2400), so the margin of error calculated is in the range of +/-2% to +/-3%. However, in the latest pool, the pollster sampled 340 congressmen, reporting a...

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Spatstat – An introduction and measurements with Bio7

September 10, 2015
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Spatstat – An introduction and measurements with Bio7

10.09.2015 Here I present a summary of a small spatstat workshop I created. I also explain in several videos how to transfer and convert 2d and 3D ImageJ measurements to a spatial point pattern with Bio7. The example datasets and code samples used here were taken from the spatstat help and from spatstat scripts cited

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Bio7 2.3 Released!

August 28, 2015
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Bio7 2.3 Released!

28.08.2015 As a result of the useR conference 2015 with fantastic workshops and presentations where I also presented my software I released a new version of Bio7 with many improvements and new features inspired by the R conference and important for the next ImageJ conference 2015 where I will give a Bio7 workshop. For this

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ImageJ Selections to Georeferenced Spatial Objects

August 5, 2015
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ImageJ Selections to Georeferenced Spatial Objects

05.08.2015 As a result of the last UseR conference and some great spatial workshops and talks where I participated I decided to rework the selection dialog for the upcoming Bio7 2.3 to transfer ImageJ selection data as ‘Spatial Objects’ with the help of the package ‘sp‘ and the Java GDAL binding (version 1.7.1). Video: One

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Bio7 at the useR! Conference 2015

June 28, 2015
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I recently released a new version of Bio7 just in time and planned for the useR conference 2015 where I will present Bio7 in the Ecology oral session titled: “A Graphical User Interface for R in an Integrated Development Environment for Ecological Modeling, Scientific Image Analysis and Statistical Analysis “. I hope to see you

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Bio7 2.2 for Windows, Linux and MacOSX released

June 26, 2015
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Bio7 2.2 for Windows, Linux and MacOSX released

26.06.2015 I released a new version of Bio7 for Windows, Linux and MacOSX simultaneously. This release is based on Eclipse 4.5 which was published on Wednesday. It comes bundled with the latest ImageJ version (1.49u) and the latest R version (bundled with Windows and Mac). Download at: http://bio7.org New features: Based on Eclipse 4.5 (Mars)

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Bio7 2.1 Release Candidate RC2 for MacOSX Available

May 29, 2015
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Bio7 2.1 Release Candidate RC2 for MacOSX Available

29.05.2015 I published a MacOSX release candidate for Bio7 2.1 based on Eclipse 4.5 RC2. This release was tested on MacOSX 10.10. The final release will be published after the official Eclipse 4.5 release. Installation: Bio7 2.1 comes as a regular *.dmg installation package. Just drag the Bio7.app to the Applications folder. Bio7 2.1 comes

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Bio7 2.1 for Linux 64-bit and Windows 32-bit released

May 19, 2015
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Bio7 2.1 for Linux 64-bit and Windows 32-bit released

19.05.2015 After the 64-bit release of Windows the Linux 64-bit and Windows 32-bit release can be downloaded at: http://bio7.org Linux installation: The installation of Bio7 is similar to the installation of the Eclipse environment. Simply decompress the downloaded *.zip file in a preferred location on your file system. After decompressing with a standard zip-tool (like

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Bio7 2.1 for Windows 64 bit released

May 18, 2015
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Bio7 2.1 for Windows 64 bit released

18.05.2015 I released a new version of the Integrated Development Environment Bio7 with new functions and many visual layout improvements of the Bio7 Graphical User Interface. Bio7 2.1 can be downloaded here: http://bio7.org Release notes Bio7 2.1: R: Updated R to version 3.2.0. Improved the R perspective layout (see below). Improved the syntax coloring and

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