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What's the difference between --general-numeric-sort and --numeric-sort options in gnu sort
...ort compares the numbers as floats, this allows scientific notation eg 1.234E10 but is slower and subject to rounding error (1.2345678 could come after 1.2345679), numeric sort is just a regular alphabetic sort that knows 10 comes after 9.
See http://www.gnu.org/software/coreutils/manual/html_...
Getting the count of unique values in a column in bash
...e.Paused until further notice.
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ActiveRecord, has_many :through, and Polymorphic Associations
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ActionLink htmlAttributes
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How to fix the uninitialized constant Rake::DSL problem on Heroku?
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How do I tell Matplotlib to create a second (new) plot, then later plot on the old one?
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Error in : object of type 'closure' is not subsettable
...f <- reactive({
data.frame(col1 = c(1,2,3),
col2 = c(4,5,6))
})
While we often work with reactive expressions in shiny as if they were data frames, they are actually functions that return data frames (or other objects).
isolate({
print(reactive_df())
print(reactive_d...
Formatting “yesterday's” date in python
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406
Use datetime.timedelta()
>>> from datetime import date, timedelta
>>> yeste...
Setting JDK in Eclipse
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You manage the list of available compilers in the Window -> Preferences -> Java -> Ins...