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Read an Excel file directly from a R script
How can I read an Excel file directly into R? Or should I first export the data to a text- or CSV file and import that file into R?
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What does the leading semicolon in JavaScript libraries do?
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No: In your example, you'd get (function(){...})()(function(){...})().
– Aaron Digulla
Dec 9 '09 at 13:52
8
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Try-finally block prevents StackOverflowError
...e a really, really long time. The order of time is O(2^N) where N is the maximum stack depth.
Imagine the maximum depth is 5
foo() calls
foo() calls
foo() calls
foo() calls
foo() which fails to call foo()
finally calls
foo() which fails ...
Append a dictionary to a dictionary [duplicate]
I have two existing dictionaries, and I wish to 'append' one of them to the other. By that I mean that the key,values of the other dictionary should be made into the first dictionary. For example:
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Https Connection Android
I am doing a https post and I'm getting an exception of ssl exception Not trusted server certificate. If i do normal http it is working perfectly fine. Do I have to accept the server certificate somehow?
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Transposing a 2D-array in JavaScript
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array[0].map((_, colIndex) => array.map(row => row[colIndex]));
map calls a provided callback function once for each element in an array, in order, and constructs a new array from the results. callback is invoked only for indexes of the a...
Priority queue in .Net [closed]
...unning calculation (delete old items), heap only support deleting min or max
– Svisstack
Jul 27 '14 at 12:09
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How do I get a UTC Timestamp in JavaScript?
...ote that getTime() returns milliseconds, not plain seconds.
For a UTC/Unix timestamp, the following should suffice:
Math.floor((new Date()).getTime() / 1000)
It will factor the current timezone offset into the result. For a string representation, David Ellis' answer works.
To clarify:
new Dat...
Preferred way to create a Scala list
...e are several ways to construct an immutable list in Scala (see contrived example code below). You can use a mutable ListBuffer, create a var list and modify it, use a tail recursive method, and probably others that I don't know about.
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Why is the asterisk before the variable name, rather than after the type?
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They are EXACTLY equivalent.
However, in
int *myVariable, myVariable2;
It seems obvious that myVariable has type int*, while myVariable2 has type int.
In
int* myVariable, myVariable2;
it may seem obvious that both are of type int...