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How to sort a dataFrame in python pandas by two or more columns?
...ign result of the sort method to a variable or add inplace=True to method call.
that is, if you want to reuse df1 as a sorted DataFrame:
df1 = df1.sort(['a', 'b'], ascending=[True, False])
or
df1.sort(['a', 'b'], ascending=[True, False], inplace=True)
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IntelliJ and Tomcat…changed files are not automatically recognized by Tomcat
...r "Update resources" or "Update Classes and Resources"
Update resources: All changed resources (that is, all application components other than the classes) will be updated.
Update classes and resources: All changed resources will be updated; changed classes will be recompiled. Note that whether th...
Remove menu and status bars in TinyMCE 4
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Small typo: menuBar: 'file edit' should be menubar: 'file edit'
– Cory Mawhorter
May 27 '13 at 9:49
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System.currentTimeMillis() vs. new Date() vs. Calendar.getInstance().getTime()
...ost efficient since it does not even create an object, but new Date() is really just a thin wrapper about a long, so it is not far behind. Calendar, on the other hand, is relatively slow and very complex, since it has to deal with the considerably complexity and all the oddities that are inherent to...
Why do I get “Pickle - EOFError: Ran out of input” reading an empty file?
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catching an EOF exception won't save you from all the other potential errors.
– Padraic Cunningham
Jul 16 '14 at 23:06
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Insert line break inside placeholder attribute of a textarea?
...eed it doesn't. I just tried it in FF and it prints out the 
 literally, without producing a whitespace character. See developer.mozilla.org/en/HTML/HTML5/…
– Merlyn Morgan-Graham
Jan 11 '15 at 12:46
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RSpec controller testing - blank response.body
...with a problem when testing my controllers with RSpec - the response.body call always returns an empty string. In browser everything renders correctly, and cucumber feature tests seem to get it right, but RSpec fails each and every time.
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Why is std::map implemented as a red-black tree?
...1) or O(log n) because the main operation is already O(log n). even after all the slightly extra work that AVL trees do results in a more tightly balanced tree which leads to slightly faster lookups. so it is a perfectly valid tradeoff and does not make AVL trees inferior to red-black trees.
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jquery get all form elements: input, textarea & select
Is there an easy way (without listing them all separately) in jquery to select all form elements and only form elements.
12...
Django - iterate number in for loop of a template
...e dictionary then not only first and last iteration can be controlled, but all index can be controlled. example:
{% for key, value in DictionaryResult.items %}
<tr align="center">
{% for project_data in value %}
{% if forloop.counter <= 13 %} <!-- Here you can control ...