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How to include (source) R script in other scripts

...check for something unique in your util.R code. For example: if(!exists("foo", mode="function")) source("util.R") (Edited to include mode="function", as Gavin Simpson pointed out) share | improv...
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How can you diff two pipelines in Bash?

...dev/fd/63 to get a filename that the command can open and read from to actually read from an already-open file descriptor that bash set up before exec'ing the command. (i.e. bash uses pipe(2) before fork, and then dup2 to redirect from the output of quux to an input file descriptor for diff, on fd ...
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Why isn't my Pandas 'apply' function referencing multiple columns working? [closed]

... @Andy following [53-54] allow you to apply more complex functions. – Andy Hayden May 3 '13 at 9:29 ...
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Return multiple values in JavaScript?

... second} = getValues(); * See this table for browser compatibility. Basically, all modern browsers aside from IE support this syntax, but you can compile ES6 code down to IE-compatible JavaScript at build time with tools like Babel. ...
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Easy way to print Perl array? (with a little formatting)

... Or, if you want to be really dirty: {local $,=', ';print @array}. – musiKk Apr 21 '11 at 7:57 10 ...
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Retrieve specific commit from a remote Git repository

...(Q2 2015), fetching a single commit (without cloning the full repo) is actually possible. See commit 68ee628 by Fredrik Medley (moroten), 21 May 2015. (Merged by Junio C Hamano -- gitster -- in commit a9d3493, 01 Jun 2015) You now have a new config (on the server side) uploadpack.allowReachable...
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Why is it possible to recover from a StackOverflowError?

...of the currently active function delete its stack frame, proceed with the calling function abort the execution of the caller delete its stack frame, proceed with the calling function and so on... ... until the exception is caught. This is normal (in fact, necessary) and independent of which except...
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When is del useful in python?

I can't really think of any reason why python needs the del keyword (and most languages seem to not have a similar keyword). For instance, rather than deleting a variable, one could just assign None to it. And when deleting from a dictionary, a del method could be added. ...
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How to specify test directory for mocha?

...le hierarchy than the rest of the tests, and would only find that one odd ball file and not the dozen others that lived on the same level in the hierarchy. Wrapping in quotes fixed it. – Stoutie Nov 9 '15 at 0:23 ...
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Reflecting parameter name: abuse of C# lambda expressions or syntax brilliance?

...type inference can do that). This can be expressed in the CLR. But F# disallows it, mostly because if you did that, those APIs would not be callable from C#.) When it comes to interop, there are always trade-offs at 'edge' features regarding what benefits you get versus what interop you trade awa...