大约有 48,000 项符合查询结果（耗时：0.0581秒） [XML]
python pandas: Remove duplicates by columns A, keeping the row with the highest value in column B
...
This answer is now obsolete. See @Ted Petrou's answer below.
– cxrodgers
Apr 27 '17 at 22:26
...
Install Node.js on Ubuntu
...do] apt-get update
node.js installation
[sudo] apt-get install nodejs
Now checking node.js version
node -v
Outputs
v0.10.20
This command should install npm.
npm install
Check npm version
npm -v
Outputs
1.4.3
If for some reason, if you see npm is not installed, you may try running...
Best way to represent a fraction in Java?
...never overflow. But it'll be a tad slow for a lot of operations that you know will never overflow.. anyway, use it if you want it. I've been dying to show this off somehow. :)
Edit: Latest and greatest version of this code, including unit tests is now hosted on GitHub and also available via Maven...
Changing a specific column name in pandas DataFrame
...m sure this will help more people.. as the other solutions require you to know and copy the original column names beforehand.... while this is quick and dirty method.. which has its own uses.
– ihightower
Sep 30 '17 at 17:27
...
How to write an inline IF statement in JavaScript?
...e minor if the value is true, and major if the value is false.
This is known as a Conditional (ternary) Operator.
https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Operators/Conditional_Operator
share
...
How do I get the n-th level parent of an element in jQuery?
...
Depends on your needs, if you know what parent your looking for you can use the .parents() selector.
E.G:
http://jsfiddle.net/HenryGarle/Kyp5g/2/
<div id="One">
<div id="Two">
<div id="Three">
<div id="Four"&g...
How can I get column names from a table in Oracle?
...:
describe EVENT_LOG
or
desc EVENT_LOG
Note: only applicable if you know the table name and specifically for Oracle.
share
|
improve this answer
|
follow
...
Copy all the lines to clipboard
...d the server is Linux (which I assumed was what the OP was looking for but now that I think about it, that's an unrelated problem). In my defense, I'd avoid vim for copying and pasting for local files, but that's my personal taste. Good tips.
– Sridhar Sarnobat
...
Overriding the java equals() method - not working?
...ider:
Object obj = new Book();
obj.equals("hi");
// Oh noes! What happens now? Can't call it with a String that isn't a Book...
share
|
improve this answer
|
follow
...
Delete topic in Kafka 0.8.1.1
...
Thanks for the info. Do you know how to clear the entire Kafka and Zookeeper states as indicated?
– EmPak5
Jun 18 '14 at 16:09
...