Posts Tagged ‘ time ’

Doing away with “unknown timezone” warnings

November 8, 2011
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Doing away with “unknown timezone” warnings

Timezone stuff can really drive you NUTS - at least if you’re sitting in front of a German Windows-Box This is what I used to do to set my tz: And I always wondered why R would throw “unknown timezone” warnings: Someday I found out that setting tz via `options()` was not enough as the … Continue reading...

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Plotting grouped data vs time with error bars in R

October 31, 2011
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Plotting grouped data vs time with error bars in R

This is my first blog since joiningR-bloggers. I’m quite excited to be part of this group and apologize if I boreany experienced R users with my basic blogs for learning R or offendprogrammers with my inefficient, sloppy coding. Hopefully writing for...

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Plotting grouped data vs time with error bars in R

October 31, 2011
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Plotting grouped data vs time with error bars in R

This is my first blog since joining R-bloggers. I’m quite excited to be part of this group and apologize if I bore any experienced R users with my basic blogs for learning R or offend programmers with my inefficient, sloppy … Continue reading →

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Shipping Mix

October 20, 2011
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Shipping Mix

With a fresh pile of historical global shipping data, we came back to the flow visualizations that illustrated tangible supply lines that facilitate global trade.  This time we've isolated two types of shipping vessels, cargo and tanker, in order ...

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Statistique de l’assurance STT6705V, partie 12

December 2, 2010
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Statistique de l’assurance STT6705V, partie 12

The final course (since courses end this week in Montréal) can be watched here and there. The drawings from the course can be downloaded here (including last week's). First, to come back on last week's course , we considered Lee-carter model, i.e....

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Date and Time in R

June 15, 2010
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Date and Time in R

The following are a few date and time functions that I needed to figure out early on when working with R.We will start when we are... the current system date.Sys.Date()Notice that this function returns a Date object.class(Date)A string in this format i...

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