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WPF Bind to itself
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John Cummings
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answered Dec 15 '09 at 10:49
HeinziHeinzi
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Java synchronized static methods: lock on object or class
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Ravindra babu
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answered Jan 13 '09 at 0:53
OscarRyzOscar...
How to change value of process.env.PORT in node.js?
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For just one run (from the unix shell prompt):
$ PORT=1234 node app.js
More permanently:
$ export PORT=1234
$ node app.js
In Windows:
set PORT=1234
In Windows PowerShell:
$env:PORT = 1234
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Push to GitHub without a password using ssh-key
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443
If it is asking you for a username and password, your origin remote is pointing at the HTTPS URL...
Pushing a local branch up to GitHub
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TomTom
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What's the difference between streams and datagrams in network programming?
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3 Answers
3
Active
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Python matplotlib multiple bars
...ime.datetime(2011, 1, 6, 0, 0)
]
x = date2num(x)
y = [4, 9, 2]
z = [1, 2, 3]
k = [11, 12, 13]
ax = plt.subplot(111)
ax.bar(x-0.2, y, width=0.2, color='b', align='center')
ax.bar(x, z, width=0.2, color='g', align='center')
ax.bar(x+0.2, k, width=0.2, color='r', align='center')
ax.xaxis_date()
plt....
Python: Is it bad form to raise exceptions within __init__?
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answered Oct 1 '09 at 23:59
John MillikinJohn Millikin
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How to succinctly write a formula with many variables from a data frame?
... 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 ~ . - x3, data = d)
Technically, . means all ...