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How to round to 2 decimals with Python?

... edited Nov 26 '19 at 18:40 Boris 4,69255 gold badges4242 silver badges5252 bronze badges answered Dec 8...
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Dynamically select data frame columns using $ and a character value

...itten as `$`(df , V1) or indeed `$`(df , "V1") But... `$`(df , paste0("V1") ) ...for instance will never work, nor will anything else that must first be evaluated in the second argument. You may only pass a string which is never evaluated. Instead use [ (or [[ if you want to extract only...
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How to compute the sum and average of elements in an array?

... var sum = 0; for( var i = 0; i < elmt.length; i++ ){ sum += parseInt( elmt[i], 10 ); //don't forget to add the base } var avg = sum/elmt.length; document.write( "The sum of all the elements is: " + sum + " The average is: " + ...
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How to run cron job every 2 hours

... Just do: 0 */2 * * * /home/username/test.sh The 0 at the beginning means to run at the 0th minute. (If it were an *, the script would run every minute during every second hour.) Don't forget, you can check syslog to see if it eve...
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How to drop a list of rows from Pandas dataframe?

... 401 Use DataFrame.drop and pass it a Series of index labels: In [65]: df Out[65]: one two...
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How to center absolute div horizontally using CSS?

...v and want it to be centered horizontally - although I'm giving it margin:0 auto; it's not centered... 8 Answers ...
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What are differences between AssemblyVersion, AssemblyFileVersion and AssemblyInformationalVersion?

... format: major.minor. This would result in: [assembly: AssemblyVersion("1.0")] If you're following SemVer strictly then this means you only update when the major changes, so 1.0, 2.0, 3.0, etc. AssemblyFileVersion Used for deployment. You can increase this number for every deployment. It is use...
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Delete the first three rows of a dataframe in pandas

... | edited Oct 17 '18 at 1:06 Acumenus 35.7k1111 gold badges9999 silver badges9494 bronze badges answered...
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Grid of responsive squares

... you can code : HTML : <div></div> CSS div { width: 30%; padding-bottom: 30%; /* = width for a square aspect ratio */ } Here is a simple layout example of 3*3 squares grid using the code above. With this technique, you can make any other aspect ratio, here is a table giv...
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Bootstrap 3 modal vertical position center

...: inline-block; vertical-align: middle; content: " "; height: 100%; } } .modal-dialog { display: inline-block; text-align: left; vertical-align: middle; } And adjust a little bit .fade class to make sure it appears out of the top border of window, instead of center ...