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java: HashMap not working
...eter Lawrey
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Find the max of two or more columns with pandas
...d
import perfplot
np.random.seed(0)
df_ = pd.DataFrame(np.random.randn(5, 1000))
perfplot.show(
setup=lambda n: pd.concat([df_] * n, ignore_index=True),
kernels=[
lambda df: df.assign(new=df.max(axis=1)),
lambda df: df.assign(new=df.values.max(1)),
lambda df: df.ass...
Referring to a file relative to executing script
... some config files from the same place."
Any solution isn't going to work 100% of the time:
It is important to realize that in the general case, this problem has no solution. Any approach you might have heard of, and any approach that will be detailed below, has flaws and will only work in spec...
Check if two lists are equal [duplicate]
...onfused.
– AaronLS
Jul 17 '14 at 18:01
24
I would revert the order of the var a = ints1.All(ints2...
Possible to perform cross-database queries with PostgreSQL?
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answered Sep 5 '08 at 18:10
NeallNeall
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What is the best way to do a substring in a batch file?
...n, however: Substrings are done using the :~start,length notation:
%var:~10,5%
will extract 5 characters from position 10 in the environment variable %var%.
NOTE: The index of the strings is zero based, so the first character is at position 0, the second at 1, etc.
To get substrings of argumen...
Difference between one-to-many and many-to-one relationship
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10 Answers
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How to programmatically take a screenshot on Android?
...ream outputStream = new FileOutputStream(imageFile);
int quality = 100;
bitmap.compress(Bitmap.CompressFormat.JPEG, quality, outputStream);
outputStream.flush();
outputStream.close();
openScreenshot(imageFile);
} catch (Throwable e) {
// Several e...
How to write a:hover in inline CSS?
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Giampaolo Ferradini
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answered Jun 23 '09 at 15:09
Jonathan FinglandJonathan Fingland
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ERROR 1396 (HY000): Operation CREATE USER failed for 'jack'@'localhost'
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I'm seeing the same problem with 10.1.21, but "flush privileges" didn't make any difference. I drop the user, flush, and then create, which fails with "ERROR 1396 (HY000) at line 7: Operation CREATE USER failed for ...". I wish I could get mysql/mariadb to e...