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How to Correctly Use Lists in R?
...dresses the question of the difference between [] and [[]].
In short [[]] selects a single item from a list and [] returns a list of the selected items. In your example, x = list(1, 2, 3, 4)' item 1 is a single integer but x[[1]] returns a single 1 and x[1] returns a list with only one value.
>...
JPA: what is the proper pattern for iterating over large result sets?
...essSession();
Query query = session
.createQuery("SELECT a FROM Address a WHERE .... ORDER BY a.id");
query.setFetchSize(Integer.valueOf(1000));
query.setReadOnly(true);
query.setLockMode("a", LockMode.NONE);
ScrollableResults results = query....
How do I put the image on the right side of the text in a UIButton?
...ia Interface Builder)
There's an easier way from the Interface Builder.
Select the UIButton and select this option in the View Utilities > Semantic:
That's it! Nice and simple!
OPTIONAL - 2nd step:
If you want to adjust the spacing between the image and the title you can change the I...
How to access random item in list?
... isn't repeated? Let's say I wanted to shuffle a deck of cards by randomly selecting one at a time, but obviously can't select the same card twice.
– AdamMc331
Sep 21 '14 at 5:26
7...
Disabling Chrome cache for website development
...ck (or hold left click) on the reload button at the top of the browser and select "Empty Cache and Hard Reload."
This will go beyond "Hard Reload" to empty the cache entirely, ensuring that anything downloaded via javascript or etc. will also avoid using the cache. You don't have to mess with set...
Is there a CSS selector for elements containing certain text?
I am looking for a CSS selector for the following table:
18 Answers
18
...
Maven Install on Mac OS X
...t:~$ sudo port install maven3 will Install Maven 3.0
you@host:~$ sudo port select --set maven maven3 selects that version of Maven
Installing by hand:
Download Maven from its homepage
Follow the installation instructions:
Extract the distribution archive, i.e.apache-maven-3.3.9-bin.tar.gz to th...
Why does ASP.NET webforms need the Runat=“Server” attribute?
... If a control is running at the server, does that mean you can't select the elements using Javascript? e.g. document.getElementsById("tvns:treeview");
– Ciaran Gallagher
Nov 22 '13 at 10:13
...
Is there a shortcut to move between header and source file in VC++?
...urrentExtension As String = IO.Path.GetExtension(CurrentPath)
Select Case CurrentExtension
Case ".h", ".hpp", ".hxx"
OtherPath = IO.Path.ChangeExtension(CurrentPath, ".cpp")
If (Not IO.File.Exists(OtherPath)) Then
...
Unique random string generation
...ncat(
Enumerable
.Repeat(0, int.MaxValue)
.Select(e => RandomByte())
.Where(randomByte => randomByte < outOfRange)
.Take(length)
.Select(randomByte => alphabet[randomByte % alphabet.Length])
);
}
byte RandomByte()
{...