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What is the volatile keyword useful for?
...ce.
– Adam Zalcman
Jul 18 '13 at 12:32
46
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Compute a confidence interval from sample data
...ion attempt?
– Russ
Mar 12 '14 at 7:32
I like it because you can just add *ss.t._ppf((1+conf)/2.,n-1) to the built-in...
Convert a row of a data frame to vector
... Chinmay PatilChinmay Patil
15.7k44 gold badges3232 silver badges5555 bronze badges
3
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SQL Server Insert if not exists
...wered Jan 20 '16 at 6:10
user4023224user4023224
7
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How to make inline functions in C#
...
IL_0027: callvirt instance !1 class [mscorlib]System.Func`2<int32, int32>::Invoke(!0)
IL_002c: box [mscorlib]System.Int32
IL_0031: call string [mscorlib]System.String::Format(string, object)
IL_0036: call void [mscorlib]System.Console::WriteLine(string)
...
What are the advantages of NumPy over regular Python lists?
...ou definitely would for a billion cells -- neither approach would fit in a 32-bit architecture, but with 64-bit builds NumPy would get away with 4 GB or so, Python alone would need at least about 12 GB (lots of pointers which double in size) -- a much costlier piece of hardware!
The difference is m...
How to do an instanceof check with Scala(Test)
...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
Is there a way to 'uniq' by column?
...orting."
– Geremia
Apr 15 '16 at 17:32
2
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How do I convert datetime to ISO 8601 in PHP
...
232
Object Oriented
This is the recommended way.
$datetime = new DateTime('2010-12-30 23:21:46');
...
What are the mechanics of short string optimization in libc++?
...tore a short string (i.e. largest capacity() without an allocation).
On a 32 bit machine, 10 chars will fit in the short string. sizeof(string) is 12.
On a 64 bit machine, 22 chars will fit in the short string. sizeof(string) is 24.
A major design goal was to minimize sizeof(string), while maki...