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How to select rows with one or more nulls from a pandas DataFrame without listing columns explicitly
...t; df[df.isnull().any(axis=1)]
0 1 2
1 0 NaN 0
2 0 0 NaN
[For older pandas:]
You could use the function isnull instead of the method:
In [56]: df = pd.DataFrame([range(3), [0, np.NaN, 0], [0, 0, np.NaN], range(3), range(3)])
In [57]: df
Out[57]:
0 1 2
0 0 1 2
1 0 Na...
How can I decompress a gzip stream with zlib?
Gzip format files (created with the gzip program, for example) use the "deflate" compression algorithm, which is the same compression algorithm as what zlib uses. However, when using zlib to inflate a gzip compressed file, the library returns a Z_DATA_ERROR .
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Eclipse: All my projects disappeared from Project Explorer
...field and browse to each subfolder in your workspace folder, and import.
For me, this was very tedious, since I had several dozen projects in my workspace, but it's the only solution I found short of restoring my entire workspace from a backup.
Edit: This answer is now quite old, and better solut...
Scoping in Python 'for' loops
...thon's scoping rules; I understand generally how scoping works in Python for loops. My question is why the design decisions were made in this way. For example (no pun intended):
...
Run a batch file with Windows task scheduler
...\Users\beruk\(Do not put quotes around Start In)
Then Click OK
It works for me. Good Luck!
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When to use cla(), clf() or close() for clearing a plot in matplotlib?
...ith all its axes, but leaves the window opened, such that it may be reused for other plots.
plt.close() closes a window, which will be the current window, if not specified otherwise.
Which functions suits you best depends thus on your use-case.
The close() function furthermore allows one to speci...
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/tmp/mysql.sock'
...
None of the suggested methods worked. For me, it was running, however, there was a permission issue. Running sudo chown -R _mysql:mysql /usr/local/var/mysql && sudo brew services restart mysql@5.7 solved the issue
– FooBar
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ScalaTest in sbt: is there a way to run a single test without tags?
...- -z foo
to run only the tests whose name includes the substring "foo".
For exact match rather than substring, use -t instead of -z.
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UINavigationBar Hide back Button Text
...ing to what you'd like the back button to appear as. If you want it blank, for example, just put a space.
You can also change it with this line of code:
[self.navigationItem.backBarButtonItem setTitle:@"Title here"];
Or in Swift:
self.navigationItem.backBarButtonItem?.title = ""
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Ignore mapping one property with Automapper
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From Jimmy Bogard: CreateMap<Foo, Bar>().ForMember(x => x.Blarg, opt => opt.Ignore());
It's in one of the comments at his blog.
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