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Reorder levels of a factor without changing order of values
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some more, just for the record
## reorder is a base function
df$letters <- reorder(df$letters, new.order=letters[4:1])
library(gdata)
df$letters <- reorder.factor(df$letters, letters[4:1])
You may also find useful Relevel and combine_factor.
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Encoding Javascript Object to Json string
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How can I round to whole numbers in JavaScript?
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What is the difference between the | and || or operators?
...gical OR. This is the way most people think of OR and compares two values based on their truth. E.g. I am going to the store or I will go to the mall. This is the one used most often in code. For example:
if(Name == "Admin" || Name == "Developer") { //allow access } //checks if name equals Admin...
How Do I Document Packages in Java?
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How can I add an element after another element?
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How do I view the full content of a text or varchar(MAX) column in SQL Server 2008 Management Studio
In this live SQL Server 2008 (build 10.0.1600) database, there's an Events table, which contains a text column named Details . (Yes, I realize this should actually be a varchar(MAX) column, but whoever set this database up did not do it that way.)
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What does a tilde in angle brackets mean when creating a Java generic class?
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Why are C++ inline functions in the header?
... declare a function inline or not is usually a choice that you should make based on which version of the one definition rules it makes most sense for you to follow; adding inline and then being restricted by the subsequent constraints makes little sense.
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Python argparse: Make at least one argument required
...e can be challenging sometime.
There are multiple aspects of command line based program:
good design of command line
selecting/using proper parser
argparse offers a lot, but restricts possible scenarios and can become very complex.
With docopt things go much shorter while preserving readabilit...