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How to estimate how much memory a Pandas' DataFrame will need?
...ar 20906600
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To include indexes, pass index=True.
So to get overall memory consumption:
>>> df.memory_usage(index=True).sum()
731731000
Also, passing deep=True will enable a more accurate memory usage report, that accounts for the full usage of the contained objects.
This is bec...
How to create a temporary directory/folder in Java?
... regularly then the above code won't work, if it is rare then lopping the call to the above code until the delete happens (or some max tries is reached) would work.
– TofuBeer
Dec 1 '10 at 16:36
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How can I get the font size and font name of a UILabel?
...ets in Interface Builder. If not using ARC, make sure you release it in -dealloc
- (void)dealloc
{
[self.label release];
[super dealloc];
}
Then to get the font name and size all you need is
NSString *fontName = self.label.font.fontName;
CGFloat fontSize = self.label.font.pointSize;
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Array versus List: When to use which?
...he underlying stream (and v.v.); quicker than BufferedStream etc;
it internally uses an array-based model of objects (Foo[] rather than List<Foo>), since the size is fixed once built, and needs to be very fast.
But this is definitely an exception; for general line-of-business processing, a L...
List of MSBuild built-in variables
...termediate Directory drop down choose Edit... and you should see a list of all defined properties.
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Regex to match any character including new lines
Is there a regex to match "all characters including newlines"?
4 Answers
4
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Add EBS to Ubuntu EC2 Instance
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Thanks a lot for this! I was totally confused by the /mnt directory and wrongly assumed that my extra EBS volume (/dev/xvdf) that I told AWS to attach at instance creation was already mounted. Also, the mapping between what AWS shows (/dev/sdf) and (/dev/xv...
Create ArrayList from array
...d in the (most common) case where you just want a list, the new ArrayList call is unecessary as well.
– Calum
Oct 1 '08 at 14:41
146
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How to activate JMX on my JVM for access with jconsole?
...has the default value as true. (Thank you Sun!) To be super clear, especially to those less familiar with JMX nobs, I use: com.sun.management.jmxremote=true Ref: docs.oracle.com/javase/8/docs/technotes/guides/management/…
– kevinarpe
Nov 15 '15 at 12:28
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In what order do static/instance initializer blocks in Java run?
... or to access a static method or field.
So, for multiple classes, this totally depends on the code that's run to cause those classes to get loaded.
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