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Finding ALL duplicate rows, including “elements with smaller subscripts”
...nt of a vector or data frame is a duplicate of an element with a smaller subscript. So if rows 3, 4, and 5 of a 5-row data frame are the same, duplicated will give me the vector
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Sort rows in data.table in decreasing order on string key `order(-x,v)` gives error on data.table 1.
Let's say I have the following data.table in R :
3 Answers
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EF Migrations: Rollback last applied migration?
This looks like a really common task, but I can't find an easy way to do it.
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What is %2C in a URL?
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Check out http://www.asciitable.com/
Look at the Hx, (Hex) column; 2C maps to ,
Any unusual encoding can be checked this way
+----+-----+----+-----+----+-----+----+-----+
| Hx | Chr | Hx | Chr | Hx | Chr | Hx | Chr |
+----+-----+----+-----+----+-----...
Xcode 6 iPhone Simulator Application Support location
In Xcode 6, I have an app I'm using Core Data in, but there is no folder in Application Support for the iOS 8 iPhone Simulator. Where are my files and Core Data sqlite database being stored?
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How can I use Bash syntax in Makefile targets?
I often find Bash syntax very helpful, e.g. process substitution like in diff <(sort file1) <(sort file2) .
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How to search a Git repository by commit message?
I checked some source code into GIT with the commit message "Build 0051".
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On - window.location.hash - Change?
...way to really do this (and is how the 'reallysimplehistory' does this), is by setting an interval that keeps checking the current hash, and comparing it against what it was before, we do this and let subscribers subscribe to a changed event that we fire if the hash changes.. its not perfect but brow...
How can you integrate a custom file browser/uploader with CKEditor?
...ion is less than clear - what's the correct way to integrate a custom file browser/uploader with CKEditor? (v3 - not FCKEditor)
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Addition for BigDecimal
I want to do some simple sums with some currency values expressed in BigDecimal type.
11 Answers
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