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Tools for making latex tables in R [closed]
...
res <- x
res[oldx] <- NA
return(res)}
Now generate some fake data
data<-data.frame(animal=sample(c("elephant", "dog", "cat", "fish", "snake"), 100,replace=TRUE),
colour=sample(c("red", "blue", "green", "yellow"), 100,replace=TRUE),
siz...
Where is Android Studio layout preview?
...16)
The newer Android Studio version changed the location of this button. Now if you want to see the layout design preview you will need to press one of the buttons at the top right of your xml. The button that looks like an image icon will open the design dashboard, while the button next to it wil...
Cast Double to Integer in Java
...r val = (myDouble == null)? null : Integer.valueOf(myDouble.intValue());
Now it works fine for most values. However integers have a very small range (min/max value) compared to a Double. On top of that, doubles can also hold "special values", that integers cannot:
1/0 = +infinity
-1/0 = -infini...
Javascript / Chrome - How to copy an object from the webkit inspector as code
...le.
Eg:- Copy & Paste the below code in your console and press ENTER. Now, try to paste(CTRL+V for Windows or CMD+V for mac) it some where else and you will get {"name":"Daniel","age":25}
var profile = {
name: "Daniel",
age: 25
};
copy(JSON.stringify(profile));
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100% Min Height CSS layout
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Since it is no longer in the normal flow, padding-bottom of #content
now provides the space for the absolute #footer. This padding is
included in the scrolled height by default, so that the footer will
never overlap the above content.
Scale the text size a bit or resize your browser w...
Why do I have to access template base class members through the this pointer?
...ependent name, so that lookup is deferred until the template parameter is known.
Long answer: when a compiler sees a template, it is supposed to perform certain checks immediately, without seeing the template parameter. Others are deferred until the parameter is known. It's called two-phase compila...
How does the static modifier affect this code?
... all static variables are detected and initialized with default values.
So now the values are:
A obj=null
num1=0
num2=0
The second phase, execution, starts from top to bottom. In Java, the execution starts from the first static members.
Here your first static variable is static A obj = new A();, s...
View HTTP headers in Google Chrome?
Till 9.x, the headers were under the resources in the Developer Tools, but now I can't find it anywhere.
8 Answers
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Case objects vs Enumerations in Scala
...ons are a bit clumsy in Scala and have the feel of an awkward add-on, so I now tend to use case objects. A case object is more flexible than an enum:
sealed trait Currency { def name: String }
case object EUR extends Currency { val name = "EUR" } //etc.
case class UnknownCurrency(name: String) exte...
jQuery: Get height of hidden element in jQuery
...eed to get height of an element that is within a div that is hidden. Right now I show the div, get the height, and hide the parent div. This seems a bit silly. Is there a better way?
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