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svn: replace trunk with branch
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118
Use svn move to move the contents of the old trunk somewhere else and rename the branch to tru...
Select first 4 rows of a data.frame in R
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156
Use head:
dnow <- data.frame(x=rnorm(100), y=runif(100))
head(dnow,4) ## default is 6
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How to assign a Git SHA1's to a file without Git?
As I understand it when Git assigns a SHA1 hash to a file this SHA1 is unique to the file based on its contents.
12 Answer...
Is gcc's __attribute__((packed)) / #pragma pack unsafe?
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Yes, __attribute__((packed)) is potentially unsafe on some systems. The symptom probably won'...
Suppress command line output
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Because error messages often go to stderr not stdout.
Change the invocation to this:
taskkill...
How to match “any character” in regular expression?
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11 Answers
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How to increment a pointer address and pointer's value?
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171
First, the ++ operator takes precedence over the * operator, and the () operators take precede...
Use CSS3 transitions with gradient backgrounds
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SQL NVARCHAR and VARCHAR Limits
...s wrong. nvarchar(max) can store up to (and beyond sometimes) 2GB of data (1 billion double byte characters).
From nchar and nvarchar in Books online the grammar is
nvarchar [ ( n | max ) ]
The | character means these are alternatives. i.e. you specify either n or the literal max.
If you choose to ...