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pandas: filter rows of DataFrame with operator chaining
Most operations in pandas can be accomplished with operator chaining ( groupby , aggregate , apply , etc), but the only way I've found to filter rows is via normal bracket indexing
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Get login username in java
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edited Jul 3 '12 at 17:35
Tim Cooper
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JavaScript equivalent of PHP’s die
Is there something like "die" in JavaScript? I've tried with "break", but doesn't work :)
14 Answers
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Minimal web server using netcat
... web server needs to be a while true loop in bash, possibly as simple as this:
13 Answers
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Soft hyphen in HTML ( vs. ­)
...ak with a hyphen. But you do not want the hyphen to show if the whole word is on the same line.
12 Answers
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Where am I wrong about my project and these Javascript Frameworks?
First off, the barest bones of the project I wish to create is a wiki engine implemented as a single page web app. I plan on having a set of features available from the get-go with plenty of feature additions down the road.
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Return a value if no rows are found in Microsoft tSQL
...version of SQL, here's my simple query. If I query a record that doesn't exist then I will get nothing returned. I'd prefer that false (0) is returned in that scenario. Looking for the simplest method to account for no records.
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Best practices for Storyboard login screen, handling clearing of data upon logout
I'm building an iOS app using a Storyboard. The root view controller is a Tab Bar Controller. I'm creating the login/logout process, and it's mostly working fine, but I've got a few issues. I need to know the BEST way to set all this up.
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How can you determine how much disk space a particular MySQL table is taking up?
Is there a quick way to determine how much disk space a particular MySQL table is taking up? The table may be MyISAM or Innodb.
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Iterate through object properties
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Iterating over properties requires this additional hasOwnProperty check:
for (var prop in obj) {
if (Object.prototype.hasOwnProperty.call(obj, prop)) {
// do stuff
}
}
It's necessary because an object's prototype contains additional propertie...