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Deleting DataFrame row in Pandas based on column value
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Good update for query. It allows for more rich selection criteria (eg. set-like operations like df.query('variable in var_list') where 'var_list' is a list of desired values)
– philE
Sep 30 '14 at 20:32
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Using vagrant to run virtual machines with desktop environment
...ld solve us the problem that everyone have different software versions installed in the VM.
11 Answers
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How to avoid passing parameters everywhere in play2?
In play1, I usually get all data in actions, use them directly in views. Since we don't need to explicitly declare parameters in view, this is very easy.
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Extract a dplyr tbl column as a vector
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This seems the most versatile method as it works identically with vectors and data.frames, i.e. it enables functions to be more agnostic.
– geotheory
Mar 14 '17 at 10:03
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Android SDK on a 64-bit linux machine
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Yes, it is. You need to install the ia32 libraries. Check out the Ubuntu Linux troubleshooting section.
apt-get install ia32-libs
apt-get install sun-java6-jdk
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Ruby - test for array
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Type checking is for Java. Go ahead and just call count on the variable. Write unit tests to make sure the method works as expected.
– user132447
Mar 21 '12 at 14:55
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How do I URL encode a string
...om/message/15674#15674
http://simonwoodside.com/weblog/2009/4/22/how_to_really_url_encode/
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Differences between detach(), hide() and remove() - jQuery
... @comecme: If you have bound an event like a click handler to the span, call remove(), and attach it again, the binding will be gone and clicking the span will do nothing. If you call detach() and reattach, the binding stays and the click handler keeps working.
– lambshaanxy...
JavaScript implementation of Gzip [closed]
I'm writing a Web application that needs to store JSON data in a small, fixed-size server-side cache via AJAX (think: Opensocial quotas ). I do not have control over the server.
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How does facebook, gmail send the real time notification?
...n a given interval (perhaps every few seconds), to check if something has happened. However, this can be pretty network intensive, and you often make pointless requests, because nothing has happened.
The way Facebook does it is using the comet approach, rather than polling on an interval, as soon a...