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How to deal with SettingWithCopyWarning in Pandas?
... future.
Setup
np.random.seed(0)
df = pd.DataFrame(np.random.choice(10, (3, 5)), columns=list('ABCDE'))
df
A B C D E
0 5 0 3 3 7
1 9 3 5 2 4
2 7 6 8 8 1
What is the SettingWithCopyWarning?
To know how to deal with this warning, it is important to understand what it ...
Random number generator only generating one random number
... return Guid.NewGuid().GetHashCode();
}
}
It's going to be a wee bit slower, but can be much more random than Random.Next, at least from my experience.
But not:
new Random(Guid.NewGuid().GetHashCode()).Next();
The unnecessary object creation is going to make it slower especially under ...
How can I change the language (to english) in Oracle SQL Developer?
...ndows 7 system, and apparently Oracle SQL Developer (version 3.0.04.34, 64-bit) tries to auto-guess my preferred language based on the OS. Is there any way to change the language to english?
...
Retrieve list of tasks in a queue in Celery
...ve tasks running that don't show up in the list. I'm on django-celery==3.1.10
– Seperman
Jun 13 '14 at 23:48
6
...
Using variables inside a bash heredoc
...e='Rich Ba$tard'
dough='$$$dollars$$$'
cat <<____HERE
$Name, you can win a lot of $dough this week!
Notice that \`backticks' need escaping if you want
literal text, not `pwd`, just like in variables like
\$HOME (current value: $HOME)
____HERE
Demo: https://ideone.com/rMF2XA
Note that any of...
Convert RGB to RGBA over white
...itten in units where the channels also take values in the range [0,1]. In 8bit discrete values, it'd be something like this:
x = 255 a + (1 - a) x'
y = 255 a + (1 - a) y'
z = 255 a + (1 - a) z'
Moreover, you want the largest possible value a. You can solve:
a = (x - x')/(255 - x') x' =...
What generates the “text file busy” message in Unix?
....c:299: [ERR_REMAP (ETXTBSY)] = N_("Text file busy"),
sysdeps/mach/hurd/bits/errno.h:62: ETXTBSY = 0x4000001a, /* Text file busy */
and a manual hit in manual/errno.texi:
@deftypevr Macro int ETXTBSY
@standards{BSD, errno.h}
@errno{ETXTBSY, 26, Text file busy}
An a...
How exactly does __attribute__((constructor)) work?
... them to work. After digesting the information provided here, I compiled a bit of additional information and (borrowing the section example from Michael Ambrus above) created an example to illustrate the concepts and help my learning. Those results are provided below along with the example source.
...
How to migrate/convert from SVN to Mercurial (hg) on windows
...
I just had to tackle this problem myself. I have a windows XP machine with a separate windows server hosting VisualSVN Server.
I also have TortoiseHG installed as well as the CollabNet Subversion Command-Line Client.
<Enable Convert Extension w/ Tortoise Hg 2>
Many t...
How to remove spaces from a string using JavaScript?
...y results - (2018.07.13) MacOs High Sierra 10.13.3 on Chrome 67.0.3396 (64-bit), Safari 11.0.3 (13604.5.6), Firefox 59.0.2 (64-bit) ):
SHORT strings
Short string similar to examples from OP question
The fastest solution on all browsers is / /g (regexp1a) - Chrome 17.7M (operation/sec), Safari 10.1...