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what is the most efficient way of counting occurrences in pandas?
...g values. (Compare with size.)
In any case, value_counts has been specifically optimized to handle object type, like your words, so I doubt you'll do much better than that.
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What’s the best RESTful method to return total number of items in an object?
...ly the most RESTful thing to do if fetch limits are going to be imposed at all.
– Donal Fellows
Sep 15 '10 at 9:06
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What is the difference between a Docker image and a container?
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An instance of an image is called a container. You have an image, which is a set of layers as you describe. If you start this image, you have a running container of this image. You can have many running containers of the same image.
You can see all you...
How to play an android notification sound
...title controller already set. What does it mean?
– Deqing
May 11 '14 at 11:20
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How to retrieve inserted id after inserting row in SQLite using Python?
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There is also the last_insert_rowid() SQL function, allowing you to insert the last row id as a foreign key in a next insert statement, entirely in SQL.
– Martijn Pieters♦
Feb 3 '14 at 12:36
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What's so wrong about using GC.Collect()?
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From Rico's Blog...
Rule #1
Don't.
This is really the most important
rule. It's fair to say that most
usages of GC.Collect() are a bad idea
and I went into that in some detail in
the orginal posting so I won't repeat
all that here. So let's move on to...
Rule #2
Consi...
How to move a git repository into another directory and make that directory a git repository?
...create it)
$ cp -r gitrepo1 newrepo
# remove .git from old repo to delete all history and anything git from it
$ rm -rf gitrepo1/.git
Note that the copy is quite expensive if the repository is large and with a long history. You can avoid it easily too:
# move the directory instead
$ mv gitrepo1 ...
open() in Python does not create a file if it doesn't exist
...losed at the block's end, even if an exception is raised on the way. It's equivalent to try-finally, but much shorter.
with open("file.dat","a+") as f:
f.write(...)
...
a+ Opens a file for both appending and reading. The file pointer is
at the end of the file if the file exists. The ...
How to reload/refresh an element(image) in jQuery
...ssible to reload an image with an identical file name from a server using jQuery?
12 Answers
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Assertion failure in dequeueReusableCellWithIdentifier:forIndexPath:
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You're using the dequeueReusableCellWithIdentifier:forIndexPath: method. The documentation for that method says this:
Important: You must register a class or nib file using the registerNib:forCellReuseIdentifier: or registerClass:forCellRe...