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pandas: filter rows of DataFrame with operator chaining
...d" filtering is done by "chaining" the criteria in the boolean index.
In [96]: df
Out[96]:
A B C D
a 1 4 9 1
b 4 5 0 2
c 5 5 1 0
d 1 3 9 6
In [99]: df[(df.A == 1) & (df.D == 6)]
Out[99]:
A B C D
d 1 3 9 6
If you want to chain methods, you can add your own mask...
Angular.js ng-repeat across multiple tr's
...rid_ko tr:nth-child(odd)>td{background-color:#f3f3f3;border-color:#fff #e6e6e6 #e6e6e6 #fff}
#tablegrid_ko tr:nth-child(even)>td{background-color:#ddd;border-color:#eaeaea #d0d0d0 #d0d0d0 #eaeaea}
div.scrollable-table-wrapper{
background:#268;border:1px solid #268;
display:inline-block;height...
What does “static” mean in C?
...
cmcgintycmcginty
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How to write WinForms code that auto-scales to system font and dpi settings?
...he same AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);, assuming 96dpi (see the next bullet) and default Font of MS Sans Serif (see the bullet two down). That is auto-added by the designer
based on the DPI you open the designer in... but was missing from
many of our oldest designer files. ...
How do I make my GUI behave well when Windows font scaling is greater than 100%
...t all, at high DPI. If you plan to turn on TForm.Scaled be sure to test at 96, 125, and 150 DPI for every single form in your project, and every single third party and built in control that you use.
Delphi itself is written in Delphi. It has the High DPI awareness flag turned on, for most forms, a...
Are Javascript arrays sparse?
...ined
Then sparse again:
> yetAnotherArray = Array(2**32-1)
[ <4294967295 empty items> ]
> console.log(`The script is using approximately ${Math.round(process.memoryUsage().heapUsed / 1024 / 1024 * 100) / 100} MB`)
The script is using approximately 130.68 MB
undefined
So perhaps usin...
Downloading Java JDK on Linux via wget is shown license page instead
...http://download.oracle.com/otn-pub/java/jdk/11+28/55eed80b163941c8885ad9298e6d786a/jdk-11_linux-x64_bin.tar.gz
UPDATED FOR JDK 10.0.2
wget --no-check-certificate -c --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/10.0.2+13/19aef61b38124481863b...
Explicitly select items from a list or tuple
...
list( myBigList[i] for i in [87, 342, 217, 998, 500] )
I compared the answers with python 2.5.2:
19.7 usec: [ myBigList[i] for i in [87, 342, 217, 998, 500] ]
20.6 usec: map(myBigList.__getitem__, (87, 342, 217, 998, 500))
22.7 usec: itemgetter(87,...
Rebase array keys after unsetting elements
...'application/x-zip-compressed',
'url' => '28188b90db990f5c5f75eb960a643b96/example.zip',
'deleteUrl' => 'server/php/?file=example.zip',
'deleteType' => 'DELETE'
),
array(
'name' => 'example.zip',
'size' => '10726556',
'type' =>...
Android: Background Image Size (in Pixel) which Support All Devices
...id.com/guide/practices/screens_support.html
xxxhdpi: 1280x1920 px
xxhdpi: 960x1600 px
xhdpi: 640x960 px
hdpi: 480x800 px
mdpi: 320x480 px
ldpi: 240x320 px
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