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How to take column-slices of dataframe in pandas

...e .loc See the deprecation in the docs .loc uses label based indexing to select both rows and columns. The labels being the values of the index or the columns. Slicing with .loc includes the last element. Let's assume we have a DataFrame with the following columns: foo, bar, quz, ant, cat, ...
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Is “else if” a single keyword?

...s section on keywords. The grammar in section 6.4 also makes this clear: selection-statement: if ( condition ) statement if ( condition ) statement else statement The if in else if is a statement following the else term. The section also says: [...]The substatement in a selection-statement...
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Bad class file magic or version

... an Android SDK you should specify at which SDK you refer... (In my case I selected Java 7 because I was using this version) But it depends in your case too. Search online for other errors with the same name, you'll find a lot of information – Marco Acierno Jan...
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jQuery Datepicker onchange event issue

... You can use the datepicker's onSelect event. $(".date").datepicker({ onSelect: function(dateText) { console.log("Selected date: " + dateText + "; input's current value: " + this.value); } }); Live example: $(".date") .datepicker({ ...
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How to replace an entire line in a text file by line number

... For me it says: sed: -e expression #1, char 26: unknown option to ``s' and my line is: sed -i '7s/.*/<param-value>http://localhost:8080/ASDF/services/REWS.REWSHttpSoap12Endpoint/</param-value>/' $TCE_SVN_HOME\trunk\tce\EWC\WebContent\WEB-INF\web.xml. A...
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Schema for a multilanguage database

...t PostGreSQL with hstore), you can't pass a parameter language, and say: SELECT ['DESCRIPTION_' + @in_language] FROM T_Products So you have to do this: SELECT Product_UID , CASE @in_language WHEN 'DE' THEN DESCRIPTION_DE WHEN 'SP' THEN DESCRIPTION_SP EL...
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PowerShell script to return versions of .NET Framework on a machine?

...ame Version,Release -EA 0 | Where { $_.PSChildName -match '^(?!S)\p{L}'} | Select PSChildName, Version, Release Based on the MSDN article, you could build a lookup table and return the marketing product version number for releases after 4.5: $Lookup = @{ 378389 = [version]'4.5' 378675 = [...
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How to get the Full file path from URI

...but if i do it like the MediaStore Solution, it won't work if the app user selects eg Astro as browser, instead of Music Player. How do I solve this? ...
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How to remove a Gitlab project?

... Go to the project page Select "Settings" Select the "General" section (you must be in the repository you want to delete to delete it) If you have enough rights, then at the bottom of the page will be a button for "Advanced settings" (i.e. project s...
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What is SELF JOIN and when would you use it? [duplicate]

...et information for both people in one row, you could self join like this: select e1.EmployeeID, e1.FirstName, e1.LastName, e1.SupervisorID, e2.FirstName as SupervisorFirstName, e2.LastName as SupervisorLastName from Employee e1 left outer join Employee e2 on e1.SupervisorID ...