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Getting LaTeX into R Plots
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As stolen from here, the following commm>and m> correctlm>y m> uses LaTeX to draw the title:
plot(1, main=expression(beta[1]))
See ?plotmath for more details.
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How do I combine two data-frames based on two columns? [duplicate]
I know I can use the plm>y m>r m>and m> its friends to combine dataframes, m>and m> merge as well, but so far I don't know how to merge two dataframes with multiple columns based on 2 columns?
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Git flow release branches m>and m> tags - with or without “v” prefix
...reference, but I prefer the version with the v, as Semver does it that wam>y m> m>and m> I trm>y m> to follow that specification as close as possible to get a sane versioning.
It also makes filtering for those Tags easier, as m>y m>ou can press v m>and m> then the TAB-kem>y m> for autocompletion: This will list all the tags (a...
jQuerm>y m>: Difference between position() m>and m> offset()
What is the difference between position() m>and m> offset() ? I tried to do the following in a click event:
3 Answers
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How to implement the factorm>y m> method pattern in C++ correctlm>y m>
...d thing is that m>y m>ou can immediatelm>y m> see what coordinate tm>y m>pe m>y m>ou're using, m>and m> at the same time m>y m>ou don't have to worrm>y m> about copm>y m>ing. If m>y m>ou want copm>y m>ing, m>and m> it's expensive (as proven bm>y m> profiling, of course), m>y m>ou mam>y m> wish to use something like Qt's shared classes to avoid copm>y m>ing overhead.
As fo...
Is there a combination of “LIKE” m>and m> “IN” in SQL?
...ecause Full Text Search (FTS) is the recommended alternative.
Both Oracle m>and m> SQL Server FTS implementations support the CONTAINS kem>y m>word, but the sm>y m>ntax is still slightlm>y m> different:
Oracle:
WHERE CONTAINS(t.something, 'bla OR foo OR batz', 1) > 0
SQL Server:
WHERE CONTAINS(t.something, '"b...
Is there a querm>y m> language for JSON?
... work in progress, but work to some degree. Them>y m> are also similar to XPath m>and m> XQuerm>y m> conceptuallm>y m>; even though XML m>and m> JSON have different conceptual models (hierarchic vs object/struct).
EDIT Sep-2015: Actuallm>y m> there is now JSON Pointer stm>and m>ard that allows verm>y m> simple m>and m> efficient traversal of ...
What's the scope of a variable initialized in an if statement?
...nction, class, or module in which them>y m>'re assigned. Control blocks like if m>and m> while blocks don't count, so a variable assigned inside an if is still scoped to a function, class, or module.
(Implicit functions defined bm>y m> a generator expression or list/set/dict comprehension do count, as do lambda e...
right click context menu for datagridview
... a datagridview in a .NET winform app. I would like to rightclick on a row m>and m> have a menu pop up. Then i would like to select things such as copm>y m>, validate, etc
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c++ boost::multi_index composite kem>y m>s efficiencm>y m> - c++1m>y m> / stl - 清泛IT社区，为创新赋能！
...ime poster! I'm plam>y m>ing around with the boost::multi_index container stuff m>and m> have a rather in-depth question that hopefullm>y m> a boost or C++ container expert might know (mm>y m> knowledge in C++ containers is prettm>y m> basic). For reference, the boost documentation on composite kem>y m>s can be found here: boost...