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Is there a timeout for idle PostgreSQL connections?
...HERE
current_query = '<IDLE>'
AND
now() - query_start > '00:10:00';
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Center a position:fixed element
...ion: fixed;
width: 500px;
height: 200px;
top: 50%;
left: 50%;
margin-top: -100px; /* Negative half of height. */
margin-left: -250px; /* Negative half of width. */
Or, if you don't care about centering vertically and old browsers such as IE6/7, then you can instead also add left: 0 and right: 0 to...
Print in one line dynamically
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answered Jul 14 '10 at 19:05
ewallewall
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HTML5 doctype putting IE9 into quirks mode?
...dIan Boyd
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Is there StartsWith or Contains in t sql with variables?
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Kirill PolishchukKirill Polishchuk
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How do I enable gzip compression when using MVC3 on IIS7?
...rrectly.
– Akash Kava
Sep 11 '14 at 10:29
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Standardize data columns in R
... function on the data to do what you want.
dat <- data.frame(x = rnorm(10, 30, .2), y = runif(10, 3, 5))
scaled.dat <- scale(dat)
# check that we get mean of 0 and sd of 1
colMeans(scaled.dat) # faster version of apply(scaled.dat, 2, mean)
apply(scaled.dat, 2, sd)
Using built in functions...
What are the “loose objects” that the Git GUI refers to?
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An object (blobs, trees, and commits) with SHA say - 810cae53e0f622d6804f063c04a83dbc3a11b7ca will be stored at
.git/objects/81/0cae53e0f622d6804f063c04a83dbc3a11b7ca
( the split in first two characters to improve performance of the File system as now not all the objects are ...
Is using 'var' to declare variables optional? [duplicate]
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answered Mar 21 '10 at 1:10
Stefano BoriniStefano Borini
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