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python pandas: Remove duplicates by columns A, keeping the row with the highest value in column B
...k in your case you don't really need a groupby. I would sort by descending order your B column, then drop duplicates at column A and if you want you can also have a new nice and
clean index like that:
df.sort_values('B', ascending=False).drop_duplicates('A').sort_index().reset_index(drop=True)
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Regex empty string or email
...eave empty like so:
/\A(INTENSE_EMAIL_REGEX|)\z/i
Same thing in reverse order
/\A(|INTENSE_EMAIL_REGEX)\z/i
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How to alter SQL in “Edit Top 200 Rows” in SSMS 2008
...se table and choose " Select Top 100 Rows ", I can then e.g. easily add a "ORDER BY " statement to the SQL. That works fine .
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Is there a Public FTP server to test upload and download? [closed]
...ws anonymous uploads would be utterly swamped with pr0n and warez in short order.
It's easy enough to set up your own FTP server for testing uploads. There's plenty of them for most any desktop OS. There's one built into IIS, for instance.
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How to read an external properties file in Maven
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How to split last commit into two in Git
...split files to be committed first, I'd then rebase -i again and switch the order
git rebase -i splitme^
# swap order of splitme and 'just some files'
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Do you (really) write exception safe code? [closed]
... of analysis in mind.
The lowest guarantee offered is basic, but then, the ordering of each instruction makes the whole function "none", because if 3. throws, x will leak.
The first thing to do would be to make the function "basic", that is putting x in a smart pointer until it is safely owned by th...
Adding event listeners to dynamically added elements using jQuery [duplicate]
So right now, I understand that in order to attach an event listener to a dynamically added element, you have to redefine the listener after adding the element.
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Bomb dropping algorithm
...t dosent look that simple. It is true, that you can drop bomb at layer2 in order to clean, layer1, but if there are multiple solutions, they effect solutions for higher layers.
– Luka Rahne
Mar 10 '13 at 8:32
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How to convert a DOM node list to an array in Javascript?
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This is creating an array with the original order of the list reversed, which I don't suppose is what the OP wants. Did you mean to do array[i] = obj[i] instead of array.push(obj[i])?
– Tim Down
Apr 29 '10 at 9:56
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