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Unique combination of all elements from two (or more) vectors
...s better than the classic expand.grid function because (1) strings are not converted into factors and (2) the sorting is more intuitive:
library(tidyr)
a <- c("ABC", "DEF", "GHI")
b <- c("2012-05-01", "2012-05-02", "2012-05-03", "2012-05-04", "2012-05-05")
crossing(a, b)
# A tibble: 15 x 2...
Scala 2.8 breakOut
...hat would produce an intermediary List[(Int, String)] collection, and then convert it.
Given that map uses a Builder to produce the resulting collection, wouldn't it be possible to skip the intermediary List and collect the results directly into a Map? Evidently, yes, it is. To do so, however, we n...
How to create a release signed apk file using Gradle?
...he original/default as I use above. They then go on telling you you should convert to the new open PKCS12 format. However, it seem that the Android development tools are not quite ready for this yet, because if you do, you will get the following weird errors:
com.android.ide.common.signing.Keyto...
Is MonoTouch now banned on the iPhone? [closed]
...are prohibited
Kind of a bummer, MonoTouch and the Flash CS5 -> iPhone converter are very cool.
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What is the combinatory logic equivalent of intuitionistic type theory?
...tution), it'll be handy to represent intermediate stages in the process of converting terms with binding to their combinatory form.
Here's normalization:
norm :: Unty a -> Unty a
norm (f :. a) = norm f $. a
norm c = c
($.) :: Unty a -> Unty a -> Unty a -- requires first a...
How to pass “Null” (a real surname!) to a SOAP web service in ActionScript 3
...ML
}
When currentChild.appendChild is passed the string "null", it first converts it to a root XML element with text null, and then tests that element against the null literal. This is a weak equality test, so either the XML containing null is coerced to the null type, or the null type is coerced ...
Test if lists share any items in python
... ways to test if two lists a and b share any items. The first option is to convert both to sets and check their intersection, as such:
bool(set(a) & set(b))
Because sets are stored using a hash table in Python, searching them is O(1) (see here for more information about complexity of operator...
How do I create a self-signed certificate for code signing on Windows?
...issuer key and certificate (the -ic and -iv switches).
We'll also want to convert the certificate and key into a PFX file:
pvk2pfx -pvk MySPC.pvk -spc MySPC.cer -pfx MySPC.pfx
If you want to protect the PFX file, add the -po switch, otherwise PVK2PFX creates a PFX file with no passphrase.
Using...
How to translate between Windows and IANA time zones?
...erefore, I've encapsulated the complexity of the solution into the TimeZoneConverter micro-library, which can be installed from Nuget.
Using this library is simple. Here are some examples of conversion:
string tz = TZConvert.IanaToWindows("America/New_York");
// Result: "Eastern Standard Time"
st...
Mercurial: Can I rename a branch?
...ms where you can force the users to clone this is a good idea -- or use hg convert instead.
– hochl
Apr 3 '12 at 8:34
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