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How to deal with SettingWithCopyWarning in Pandas?
I just upgraded my Pandas from 0.11 to 0.13.0rc1. Now, the application is popping out many new warnings. One of them like this:
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Pandas: drop a level from a multi-level column index?
... If the index you are trying to drop is on the left (row) side and not the top (column) side, you can change "columns" to "index" and use the same method: >>> df.index = df.index.droplevel(1)
– Idodo
Nov 28 '18 at 12:13
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How does variable assignment work in JavaScript?
...perty of an existing object. In the second example, you are assigning a brand new object.
a = b = {};
a and b are now pointers to the same object. So when you do:
a.foo = 'bar';
It sets b.foo as well since a and b point to the same object.
However!
If you do this instead:
a = 'bar';
you...
How do I get the path and name of the file that is currently executing?
...vide an example? I've answered similar question using inspect.getabsfile() and it worked for all cases that I've tried.
– jfs
Apr 5 '14 at 17:04
4
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Case preserving substitute in Vim
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We do not deserve Tim Pope.
– Andrew Keeton
May 23 '19 at 19:47
1
This plu...
Fastest way to iterate over all the chars in a String
... as byte[] by default.
SECOND UPDATE: As of 2016-10-25, on my AMDx64 8core and source 1.8, there is no difference between using 'charAt' and field access. It appears that the jvm is sufficiently optimized to inline and streamline any 'string.charAt(n)' calls.
THIRD UPDATE: As of 2020-09-07, on my Ry...
Underscore: sortBy() based on multiple attributes
...atient[0].roomNumber;
}).value();
When the second sortBy finds that John and Lisa have the same room number it will keep them in the order it found them, which the first sortBy set to "Lisa, John".
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'float' vs. 'double' precision
... in C use IEEE 754 encoding.
This type of encoding uses a sign, a significand, and an exponent.
Because of this encoding, many numbers will have small changes to allow them to be stored.
Also, the number of significant digits can change slightly since it is a binary representation, not a decimal ...
Why am I seeing “TypeError: string indices must be integers”?
I'm playing with both learning python and trying to get github issues into a readable form. Using the advice on How can I convert JSON to CSV? I came up with this:
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What's “requestCode” used for on PendingIntent?
...ded even in case the alarms' intents are very different (one for service A and one for service B , for example ) ? Also, how come the documentation doesn't say anything about it? Is it possible to remove all alarms of a certain type, no matter what is the requestCode?
– android...