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How to wait in a batch script? [duplicate]
...The -n 1 part tells ping that it should only tries once (normally it'd try 4 times).
The > nul part is appended so the ping command doesn't output anything to screen.
You can easily make a sleep command yourself by creating a sleep.bat somewhere in your PATH and use the above technique:
rem SL...
Opposite of %in%: exclude rows with values specified in a vector
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edited Sep 27 '18 at 22:04
JulienD
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answered Apr...
How to get nice formatting in the Rails console
...er it
was completely removed with the release of Ruby 2.0.0.
For rails 4/ruby 2 you could use just
puts object.to_yaml
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How do I change the IntelliJ IDEA default JDK?
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community wiki
4 revs, 2 users 82%GamerJosh
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Adding rounded corner and drop shadow to UICollectionViewCell
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edited Apr 6 '18 at 3:34
andrewtweber
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How to convert a string into double and vice versa?
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jjnguy
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answered Oct 4 '08 at 7:45
olliejolliej
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What would cause an algorithm to have O(log n) complexity?
...mber less than or equal to one? For 16, we have that
16 / 2 = 8
8 / 2 = 4
4 / 2 = 2
2 / 2 = 1
Notice that this ends up taking four steps to complete. Interestingly, we also have that log2 16 = 4. Hmmm... what about 128?
128 / 2 = 64
64 / 2 = 32
32 / 2 = 16
16 / 2 = 8
8 / 2 = 4
4 / ...
Relative frequencies / proportions with dplyr
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mutate(freq = n / sum(n))
# am gear n freq
# 1 0 3 15 0.7894737
# 2 0 4 4 0.2105263
# 3 1 4 8 0.6153846
# 4 1 5 5 0.3846154
From the dplyr vignette:
When you group by multiple variables, each summary peels off one level of the grouping. That makes it easy to prog...
Haskell Type vs Data Constructor
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declension
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answered Aug 13 '13 at 9:49
kqrkqr
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How to reset Django admin password?
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JamesOJamesO
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