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Why do we need tuples in Python (or any immutable data type)?
...e:
$ python -mtimeit '["fee", "fie", "fo", "fum"]'
1000000 loops, best of 3: 0.432 usec per loop
$ python -mtimeit '("fee", "fie", "fo", "fum")'
10000000 loops, best of 3: 0.0563 usec per loop
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Overlaying histograms with ggplot2 in R
I am new to R and am trying to plot 3 histograms onto the same graph.
Everything worked fine, but my problem is that you don't see where 2 histograms overlap - they look rather cut off.
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How does one use rescue in Ruby without the begin and end block
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3
Also, class definitions, module definitions and (I think) do/end block literals form implicit exception blocks.
– Jör...
Python argparse ignore unrecognised arguments
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3 Answers
3
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Dictionaries and default values
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323
Like this:
host = connectionDetails.get('host', someDefaultValue)
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Android Gradle plugin 0.7.0: “duplicate files during packaging of APK”
...ccording to comment 14 in this bug: https://issuetracker.google.com/issues/36982149#comment14 this is a bug in v0.7.0 of the Android Gradle plugin, and is due to be fixed soon in 0.7.1.
Here are the notes from that bug about the addition for 0.7.1:
0.7.1 is out with the fix for this.
The DSL to e...
R: rJava package install failing
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answered Jul 24 '10 at 14:31
Dirk EddelbuettelDirk Eddelbuettel
318k4848 gold badges574574 silver badges653653 bronze badges
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To find whether a column exists in data frame or not
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answered Apr 23 '12 at 7:03
user554546user554546
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How to shift a column in Pandas DataFrame
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In [18]: a
Out[18]:
x1 x2
0 0 5
1 1 6
2 2 7
3 3 8
4 4 9
In [19]: a.x2 = a.x2.shift(1)
In [20]: a
Out[20]:
x1 x2
0 0 NaN
1 1 5
2 2 6
3 3 7
4 4 8
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iPhone - Get Position of UIView within entire UIWindow
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344
That's an easy one:
[aView convertPoint:localPosition toView:nil];
... converts a point in ...