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Remove duplicated rows
...for larger data sets
library(microbenchmark)
library(data.table)
set.seed(123)
DF <- as.data.frame(matrix(sample(1e8, 1e5, replace = TRUE), ncol = 10))
DT <- copy(DF)
setDT(DT)
microbenchmark(unique(DF), unique(DT))
# Unit: microseconds
# expr min lq mean median ...
how to implement regions/code collapse in javascript
... This one is useful and the important point to note from the site's comments is "You must check the name of the module in the above code with the name of your new Macro. both names must match!"
– Prasad
Dec 17 '09 at 16:48
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Changing image size in Markdown
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Using inline style does not work in most websites (e.g. GitHub) site it will get sanitized. Prefer width and height instead as mentioned by @kushdillip.
– Ciro Santilli 郝海东冠状病六四事件法轮功
Nov 22 '14 at 8:48
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Does anyone beside me just NOT get ASP.NET MVC? [closed]
...ore standardized design and opens the door to a more "Web 2.0" type of web site.
However, there are some significant drawbacks as well.
First, while it is easy to get a demo site going, the overall architectural model has a significant learning curve. When they say "Convention Over Configuration"...
Mysql - How to quit/exit from stored procedure
...ql.com/doc/refman/5.5/en/signal.html
How to raise an error within a MySQL function
http://www.databasejournal.com/features/mysql/mysql-error-handling-using-the-signal-and-resignal-statements.html
Addendum
As I'm re-reading this post of mine, I realized I had something additional to add. Prior t...
Rotation methods deprecated, equivalent of 'didRotateFromInterfaceOrientation'?
... share me the method you have used. Thank you
– ask123
Jun 23 '14 at 7:44
2
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How to Batch Rename Files in a macOS Terminal?
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You can use a regex as well. rename 's/123/onetwothree/g' *
– Bryan
Aug 10 '16 at 17:52
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show 2 more co...
Google Maps: Auto close open InfoWindows?
On my site , I'm using Google Maps API v3 to place house markers on the map.
12 Answers
...
Pass complex parameters to [Theory]
... new object[] { "xUnit", 1 },
new object[] { "is fun", 2 },
new object[] { "to test with", 3 }
};
}
}
}
ClassData Example
public class StringTests3
{
[Theory, ClassData(typeof(IndexOfData))]
public void IndexOf(string input...
Variable length (Dynamic) Arrays in Java
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123
Yes: use ArrayList.
In Java, "normal" arrays are fixed-size. You have to give them a size an...