I think the newest release of BCEA, our R package to standardise and post-process the output of a health economic model, is now available from CRAN $-$ in fact, the source code is also available here. The package is rather stable, so the... [Read more...]

I recently gave a talk at the R in Finance conference in which I introduced the marketAgent package for R. Here is the source for the package if you’d like to play with it: marketAgent_0.000.tar I’ll be giving more details of the talk real soon now.   Update:  ... [Read more...]

I recently gave a talk at the R in Finance conference in which I introduced the marketAgent package for R. Here is the source for the package if you’d like to play with it: marketAgent_0.000.tar I’ll be giving more details of the talk real soon now. The ... [Read more...]

I think the newest release of BCEA, our R package to standardise and post-process the output of a health economic model, is now available from CRAN $-$ in fact, the source code is also available here. The package is rather stable, so the changes aren’t many, but the few ... [Read more...]

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I have completed this specialization nearly a year ago but I never wrote about it in detail. You can read more about this specialization here. What I did learn? To ask questions to making inferences, publishing results, and more. This specialization has a focus on reproducible research and communicating results. ... [Read more...]

Robust regression For training purposes, I was looking for a way to illustrate some of the different properties of two different robust estimation methods for linear regression models. The two methods I’m looking at are: least trimmed squares, implemented as the default option in lqs() a Huber M-estimator, implemented ... [Read more...]

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Git and GitHub are indispensable tools for anyone analysing data, developing software or disseminating results. Originally designed for software engineers, GitHub is now widely used in many disciplines, especially for researchers in academia. Having a source code management software such as GitHub to host your code and have detailed project ... [Read more...]

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I just heard about Data Proofer (h/t Nathan Yau), a test suite of sanity-checks for your CSV dataset. It checks a few basic things you’d really want to know but might forget to check yourself, like whether any rows are … Continue reading → [Read more...]

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Microsoft R Open 3.2.5 is now available for download. There are no changes of note in the R langauge engine with this release (R 3.2.5 was just a largely a version number increment). There's lots new on the packages front though: Microsoft R Open 3.2.5 has a default CRAN snapshot date of May 1, 2016 ... [Read more...]

The attach() function alters the R environment search path by making dataframe variables into global variables. If incorrectly scripted, the attach() function might create symantic errors. To prevent this possibility, detach() is needed to reset the dataframe objects in the search path. The transform() function allows for transformation of dataframe ... [Read more...]

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