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What are the mathematical/computational principles behind this game?
...ubeᵀᴹ
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How do I replace NA values with zeros in an R dataframe?
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916
See my comment in @gsk3 answer. A simple example:
> m <- matrix(sample(c(NA, 1:10), 100, ...
Output data from all columns in a dataframe in pandas [duplicate]
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answered Jul 6 '12 at 12:18
eumiroeumiro
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CocoaPods - use specific pod version
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Alex Zavatone
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answered May 26 '13 at 10:25
MarcelMarcel
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Remove empty elements from an array in Javascript
...s:
var array = [0, 1, null, 2, "", 3, undefined, 3,,,,,, 4,, 4,, 5,, 6,,,,];
var filtered = array.filter(function (el) {
return el != null;
});
console.log(filtered);
It will depend on what you consider to be "empty" for example, if you were dealing with strings, the above fun...
How to make good reproducible pandas examples
..., either as runnable code:
In [1]: df = pd.DataFrame([[1, 2], [1, 3], [4, 6]], columns=['A', 'B'])
or make it "copy and pasteable" using pd.read_clipboard(sep='\s\s+'), you can format the text for Stack Overflow highlight and use Ctrl+K (or prepend four spaces to each line), or place three tildes...
HSL to RGB color conversion
...t < 0) t += 1;
if(t > 1) t -= 1;
if(t < 1/6) return p + (q - p) * 6 * t;
if(t < 1/2) return q;
if(t < 2/3) return p + (q - p) * (2/3 - t) * 6;
return p;
}
var q = l < 0.5 ? l * (1 + s) : l + s - l * s;
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[A]System.Web.WebPages.Razor.Configuration.HostSection cannot be cast to… web.config issue
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6 Answers
6
Active
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Why is a round-trip conversion via a string not safe for a double?
... the zero is present, the result actually parses back to 0.84551240822557006, which is your original number -- so it compares equal, and hence only 15 digits are returned.
However, if I truncate the string at that zero to 84551240822557, then I get back 0.84551240822556994, which is not your origin...