Creating a static class with no instances

The Pythonic way to create a static class is simply to declare those methods outside of a class (Java uses classes both for objects and for grouping related functions, but Python modules are sufficient for grouping related functions that do not require any object instance). However, if you insist on making a method at the … Read more

How do I center floated elements?

Removing floats, and using inline-block may fix your problems: (remove the lines starting with – and add the lines starting with +.) Show code snippet inline-block works cross-browser, even on IE6 as long as the element is originally an inline element. Quote from quirksmode: An inline block is placed inline (ie. on the same line … Read more

What are the “standard unambiguous date” formats for string-to-date conversion in R?

This is documented behavior. From ?as.Date: format: A character string. If not specified, it will try ‘”%Y-%m-%d”‘ then ‘”%Y/%m/%d”‘ on the first non-‘NA’ element, and give an error if neither works. as.Date(“01 Jan 2000”) yields an error because the format isn’t one of the two listed above. as.Date(“01/01/2000”) yields an incorrect answer because the date … Read more

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