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Drop all duplicate rows across multiple columns in Python Pandas
...drop_duplicates function is great for "uniquifying" a dataframe. However, one of the keyword arguments to pass is take_last=True or take_last=False , while I would like to drop all rows which are duplicates across a subset of columns. Is this possible?
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View differences of branches with meld?
...r the staging area or the working directory against any of the others. If one of the things you are comparing against is the working tree then that is read-write also so you don't lose your changes.
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How to study design patterns? [closed]
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you mentioned you read 3 books..did you read this one as well? amazon.com/… if so, what did you think?
– sivabudh
Apr 15 '09 at 20:00
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About catching ANY exception
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Possible workaround: effbot.org/zone/stupid-exceptions-keyboardinterrupt.htm
– Mikel
Feb 14 '11 at 9:52
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What is polymorphism, what is it for, and how is it used?
...basically just fizzled out but the OO paradigm has turned out to be a good one. Learn it, understand it, love it - you'll be glad you did :-)
(a) I originally wrote that as a joke but it turned out to be correct and, therefore, not that funny. The monomer styrene happens to be made from carbon an...
How can I correctly prefix a word with “a” and “an”?
...hought:
it's an unanticipated result but it's a unanimous vote
it's an honest decision but a honeysuckle shrub
Symbols: It's an 0800 number, or an ∞ of oregano.
Acronyms: It's a NASA scientist, but an NSA analyst; a FIAT car but an FAA policy.
...which just goes to underline that a rule based...
Where is PATH_MAX defined in Linux?
...mits.h>
char current_path[PATH_MAX];
PATH_MAX has some flaws as mentioned in this blog (thanks paulsm4)
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Apache Commons equals/hashCode builder [closed]
...t equals()):
a) in both versions of equals() above, you might want to use one or both of these shortcuts also:
@Override
public boolean equals(final Object obj){
if(obj == this) return true; // test for reference equality
if(obj == null) return false; // test for null
// continue as a...
Can you use a trailing comma in a JSON object?
...'t the first entry
s.appendF("\"%d\"", i);
}
s.append("]");
That extra one line of code in your for loop is hardly expensive...
Another alternative I've used when output a structure to JSON from a dictionary of some form is to always append a comma after each entry (as you are doing above) and ...
Describe the architecture you use for Java web applications? [closed]
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Ok I'll do a (shorter) one:
Frontend : Tapestry (3 for older projects, 5 for newer projects)
Business layer: Spring
DAO's : Ibatis
Database : Oracle
We use Sping transaction support, and start transactions upon entering the service layer, propa...