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Selecting only numeric columns from a data frame
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296
EDIT: updated to avoid use of ill-advised sapply.
Since a data frame is a list we can use the...
UIView's frame, bounds, center, origin, when to use what?
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answered Jul 8 '09 at 10:02
Barney MattoxBarney Mattox
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Google Authenticator implementation in Python
...rvals_no)
h = hmac.new(key, msg, hashlib.sha1).digest()
o = ord(h[19]) & 15
h = (struct.unpack(">I", h[o:o+4])[0] & 0x7fffffff) % 1000000
return h
def get_totp_token(secret):
return get_hotp_token(secret, intervals_no=int(time.time())//30)
It has two functions:
ge...
How should I use Outlook to send code snippets?
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What is the easiest way to remove all packages installed by pip?
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I've found this snippet as an alternative solution. It's a more graceful removal of libraries ...
Why can't I call read() twice on an open file?
...ed with with.
– Cees Timmerman
Jan 19 '16 at 16:47
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make arrayList.toArray() return more specific types
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tkruse
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answered Feb 21 '11 at 2:19
Mihai ToaderMihai Toader
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Difference between validate(), revalidate() and invalidate() in Swing GUI
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edited Mar 1 '18 at 20:59
Community♦
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answered Mar 1 '12 at 6:53
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What is PEP8's E128: continuation line under-indented for visual indent?
...th Latty
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How to get element by classname or id
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edited May 24 '19 at 5:40
forresthopkinsa
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