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Unique combination of all elements from two (or more) vectors
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this maybe what you are after
> expand.grid(a,b)
Var1 Var2
1 ABC 2012-05-01
2 DEF 2012-05-01
3 GHI 2012-05-01
4 ABC 2012-05-02
5 DEF 2012-05-02
6 GHI 2012-05-02
7 ABC 2012-05-03
8 DEF 2012-05-03
9 GHI 2012-05-03
10 ABC 2012-05-04
11 DEF 2012-05-04
12 GHI 2012-0...
Why does parseInt yield NaN with Array#map?
... element.
In this case, you ended up calling parseInt with radix 0, 1 and 2 in turn. The first is the same as not supplying the parameter, so it defaulted based on the input (base 10, in this case). Base 1 is an impossible number base, and 3 is not a valid number in base 2:
parseInt('1', 0); // ...
What is the best alternative IDE to Visual Studio [closed]
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62
If you're into C# and VB.Net and don't mind open source then you could use SharpDevelop. It does...
How accurately should I store latitude and longitude?
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0 1.0 111 km
1 0.1 11.1 km
2 0.01 1.11 km
3 0.001 111 m
4 0.0001 11.1 m
5 0.00001 1.11 m
6 0.000001 0.111 m
7 0.0000001 1.11 cm
8 0.00000001 1.11 mm
ref : https://en.wikipedia.org/...
Peak memory usage of a linux/unix process
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20 Answers
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How to catch SQLServer timeout exceptions
...check for a timeout, I believe you check the value of ex.Number. If it is -2, then you have a timeout situation.
-2 is the error code for timeout, returned from DBNETLIB, the MDAC driver for SQL Server. This can be seen by downloading Reflector, and looking under System.Data.SqlClient.TdsEnums for ...
How to distinguish between left and right mouse click with jQuery
...mpatibility issues. Documentation on event.which
event.which will give 1, 2 or 3 for left, middle and right mouse buttons respectively so:
$('#element').mousedown(function(event) {
switch (event.which) {
case 1:
alert('Left Mouse button pressed.');
break;
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How can I do time/hours arithmetic in Google Spreadsheet?
...our example. Google Spreadsheet performs the calculation 1.5 divided by 0.125, which is 12. The result tells you that you have 12 3-hour intervals in a 36-hour time period. 12, of course, is not a time interval. It is a unitless quantity.
Going the other way, it is possible to format any number as ...
HttpWebRequest using Basic authentication
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285
You can also just add the authorization header yourself.
Just make the name "Authorization" a...
How do I get PyLint to recognize numpy members?
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22 Answers
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