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how to check the dtype of a column in python pandas
... pandas.core.common.is_numeric_dtype has existed since Pandas 0.13, and it does the same thing, but it was deprecated in favour of pandas.api.types.is_numeric_dtype in 0.19, I think
– Migwell
May 8 '19 at 0:50
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Git ignore file for Xcode projects
...s
#
# Apple bugs, waiting for Apple to fix/respond:
#
# 15564624 - what does the xccheckout file in Xcode5 do? Where's the documentation?
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# Version 2.6
# For latest version, see: http://stackoverflow.com/questions/49478/git-ignore-file-for-xcode-projects
#
# 2015 updates:
# - Fixed typo in "xcc...
CSS selector for a checked radio button's label
...eed to be (in this case - only the body element).
Since the label element doesn't actually utilize the :checked pseudo selector, it doesn't matter that the labels are stored in the header. It does have the added benefit that since the header is a sibling element we can use the ~ generic sibling sel...
Java String split removed empty values
... use split("\\|", -1) so that it creates an unlimited number of tokens and doesn't discard empty tokens at the end.
– ADTC
Sep 19 '13 at 4:59
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Difference between java.util.Random and java.security.SecureRandom
... soon as you have observed enough output values of the LCG.
The security doesn't improve with a "better" seed. It simply doesn't matter if you seed with a random value generated by SecureRandom or even produce the value by rolling a die several times.
An attacker will simply compute the seed fro...
How do I undo the most recent local commits in Git?
... # (5)
This is what you want to undo.
This does nothing to your working tree (the state of your files on disk), but undoes the commit and leaves the changes you committed unstaged (so they'll appear as "Changes not staged for commit" in git status, so you'll need to a...
Objective-C implicit conversion loses integer precision 'NSUInteger' (aka 'unsigned long') to 'int'
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@JayprakashDubey: Apple does not see your compiler warnings because you submit the binary compiled application to the App Store. Therefore your app cannot be rejected because of compiler warnings. Of course you should fix them to make your app work ...
Returning an array using C
...ly. Arrays in C are not first-class objects (that is, an array expression does not retain it's "array-ness" in most contexts). In C, an expression of type "N-element array of T" will be implicitly converted ("decay") to an expression of type "pointer to T", except when the array expression is an o...
How do you use Mongoose without defining a schema?
... PS: You have to do thing.set(key, value) because thing.key=value doesn't work with this method, i.e. it doesn't persist changed into the database otherwise.
– laggingreflex
Mar 18 '15 at 2:48
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Give all the permissions to a user on a DB
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Granting all privileges ON DATABASE sounds mighty, but it doesn't do much. It's just a start. It does not grant any privileges on contained objects.
– Erwin Brandstetter
Sep 19 '18 at 22:05
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