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Replacing blank values (white space) with NaN in pandas
I want to find all values in a Pandas dataframe that contain whitespace (any arbitrary amount) and replace those values with NaNs.
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Function of Project > Clean in Eclipse
...ders that you have in your project (they can choose to interpret clean command however they like) and whether you have auto-build turned on. If auto-build is on, invoking clean is equivalent of a clean build. First artifacts are removed, then a full build is invoked. If auto-build is off, clean will...
git: patch does not apply
...ne how to apply a patch, but instead to apply indivdual hunks it can apply and create reject files (.rej) for hunks it cannot apply. Wiggle can "apply [these] rejected patches and perform word-wise diffs".
Additionally, --whitespace=fix will warn about whitespace errors and try to fix them, rather t...
What is 'define' used for in JavaScript (aside from the obvious)?
I have searched high and low for documentation on this, but I just cannot find anything anywhere.
2 Answers
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PostgreSQL LIKE query performance variations
...text indexes is not for the LIKE operator at all, it has its own operators and doesn't work for arbitrary strings. It operates on words based on dictionaries and stemming. It does support prefix matching for words, but not with the LIKE operator:
Get partial match from GIN indexed TSVECTOR column
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How to save all the variables in the current python session?
...s()[key]
except TypeError:
#
# __builtins__, my_shelf, and imported modules can not be shelved.
#
print('ERROR shelving: {0}'.format(key))
my_shelf.close()
To restore:
my_shelf = shelve.open(filename)
for key in my_shelf:
globals()[key]=my_shelf[key]
my_she...
Add a default value to a column through a migration
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I tried it on PostgreSQL and it updated previously created fields.
– Aboozar Rajabi
May 12 '16 at 6:31
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Easy way to prevent Heroku idling?
... or less the same solution as Jesse but maybe more integrated to Heroku... And with a few perks (performance monitoring is just great).
Note: to all those saying it doesn't work: the important part in my answer is "availability monitor". Just installing the addon won't help. You also need to s...
Difference between git stash pop and git stash apply
... for quite some time. I recently found out about the git stash apply command. When I tried it out, it seemed to work the same as git stash pop .
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Efficiently updating database using SQLAlchemy ORM
I'm starting a new application and looking at using an ORM -- in particular, SQLAlchemy.
6 Answers
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