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pandas GroupBy columns with NaN (missing) values

... No, this is not consistent with R. df %>% group_by will give NA summaries too with a warning which can be avoided by passing the grouping column through fct_explicit_na and then a (Missing) level is created. – Ravaging Care Aug 16 '1...
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Why can't Python parse this JSON data?

...: "0" } ], "masks": { "id": "valore" }, "om_points": "value", "parameters": { "id": "valore" } } Then you can use your code: import json from pprint import pprint with open('data.json') as f: data = json.load(f) pprint(data) With data, you c...
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Using an if statement to check if a div is empty

...If a container has a very long HTML content? – techie_28 Jun 17 '16 at 10:07 add a comment  |  ...
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Is there any pythonic way to combine two dicts (adding values for keys that appear in both)?

...+ b[k]) for k in set(b) & set(a)]) or even more generic: def combine_dicts(a, b, op=operator.add): return dict(a.items() + b.items() + [(k, op(a[k], b[k])) for k in set(b) & set(a)]) For example: >>> a = {'a': 2, 'b':3, 'c':4} >>> b = {'a': 5, 'c':6, 'x':7...
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How to list variables declared in script in bash?

...t using temporary files: VARS="`set -o posix ; set`"; source script; SCRIPT_VARS="`grep -vFe "$VARS" <<<"$(set -o posix ; set)" | grep -v ^VARS=`"; unset VARS; . This will also output the vars in a ready-to-save format. The list will include the variables that the script changed (it depends...
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System.IO.Packaging

...indows 10 maybe you could found here C:\Windows\Microsoft.NET\assembly\GAC_MSIL\WindowsBase\v4.0_4.0.0.0__31bf3856ad364e35\ share | improve this answer | follow ...
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Restoring MySQL database from physical files

... a single tablespace *, which by default consist of the 3 files ibdata1, ib_logfile0, and ib_logfile1. for restoring a database, you would also need those files. * per-table tablespaces are possible, but not default – ax. Aug 21 '09 at 18:18 ...
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How to split a string and assign it to variables

...plit a string : If you want to make it temporary then split like this: _ import net package host, port, err := net.SplitHostPort("0.0.0.1:8080") if err != nil { fmt.Println("Error is splitting : "+err.error()); //do you code here } fmt.Println(host, port) Split based on struct : Create a ...
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Populate a Razor Section From a Partial

...n the Scripts section of your view: @section Scripts { @Html.Partial("_Scripts", "ScriptName_For_Partial1") } Again, it might not win a beauty prize but it will work. share | improve this ans...
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Reading an Excel file in PHP [closed]

... You have 2 choices as far as I know: Spreadsheet_Excel_Reader, which knows the Office 2003 binary format PHPExcel, which knows both Office 2003 as well as Excel 2007 (XML). (Follow the link, and you'll see they upgraded this library to PHPSpreadSheet) PHPExcel uses Sprea...