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Convert Rows to columns using 'Pivot' in SQL Server
... Cœur
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answered Apr 10 '13 at 16:44
Taryn♦Taryn
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How do I exit a WPF application programmatically?
... Dirk VollmarDirk Vollmar
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php: determine where function was called from
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BoltClock♦BoltClock
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jquery if div id has children
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if ( $('#myfav').children().length > 0 ) {
// do something
}
This should work. The c...
How to use count and group by at the same select statement
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chelmertz
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answered Apr 27 '10 at 15:17
OdedOded
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How dangerous is it to compare floating point values?
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474
First of all, floating point values are not "random" in their behavior. Exact comparison can a...
How do you create a read-only user in PostgreSQL?
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edited Apr 24 '17 at 19:58
ysakhno
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(this == null) in C#!
Due to a bug that was fixed in C# 4, the following program prints true . (Try it in LINQPad)
6 Answers
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How to get 0-padded binary representation of an integer in java?
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answered Dec 12 '10 at 11:41
Samuel ParsonageSamuel Parsonage
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How to succinctly write a formula with many variables from a data frame?
... a formula to mean all the variables, it is the . identifier.
y <- c(1,4,6)
d <- data.frame(y = y, x1 = c(4,-1,3), x2 = c(3,9,8), x3 = c(4,-4,-2))
mod <- lm(y ~ ., data = d)
You can also do things like this, to use all variables but one (in this case x3 is excluded):
mod <- lm(y ~ . ...