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How to read a .xlsx file using the pandas Library in iPython?
...,
those columns will be combined into a ``MultiIndex``
names : array-like, default None
List of column names to use. If file contains no header row,
then you should explicitly pass header=None
converters : dict, default None
Dict of functions for converting va...
How to retrieve form values from HTTPPOST, dictionary or?
...]
public ActionResult SubmitAction() {
// This will return an string array of all keys in the form.
// NOTE: you specify the keys in form by the name attributes e.g:
// <input name="this is the key" value="some value" type="test" />
var keys = Request.Form.AllKeys;
// Th...
Why is the C++ STL is so heavily based on templates? (and not on *interfaces*)
...hey're a major part of both languages. If the STL did not work with native arrays, it would be useless.
Your question has a strong assumption that OOP is "best". I'm curious to hear why. You ask why they "abandoned classical OOP". I'm wondering why they should have stuck with it. Which advantages w...
Chrome Extension how to send data from content script to popup.html
...d into matching pages. These are injected in the order they appear in this array.
(emphasis mine)
In contentscript.js: Move the chrome.runtime.sendMessage({...}) block inside the onMessage listener callback.
That said, here is my proposed approach:
Control flow:
A content script is inject...
Good examples of Not a Functor/Functor/Applicative/Monad?
...ich is an Applicative, but not a Monad:
newtype T a = T {multidimensional array of a}
You can make an Applicative out of it, with something like:
mkarray [(+10), (+100), id] <*> mkarray [1, 2]
== mkarray [[11, 101, 1], [12, 102, 2]]
But if you make it a monad, you could get a dimension...
Why use JUnit for testing?
...method if implemented, otherwise using == reference comparison). Note: For arrays, it is the reference that is checked, and not the contents, use assertArrayEquals([message,] expected, actual) for that.
assertEquals([message,] expected, actual, delta) - Tests whether two float or double values are i...
How to use Elasticsearch with MongoDB?
...ongoose.model('Page', new mongoose.Schema({
title: String,
categories: Array
}), 'your_collection_name');
// stream query
var stream = Page.find({
}, {title: 1, _id: 0, categories: 1}).limit(1500000).skip(0).batchSize(500).stream();
elasticbulk.import(stream, {
index: 'my_index_name',
typ...
How do I pass a variable by reference?
...g was a pointer, which one could follow to the piece of memory (primitive, array, struct, whatever), but you couldn't change the pointer that was copied from the outer scope - when you were done with the function, the original pointer still pointed to the same address. C++ introduced references, whi...
How do HTML parses work if they're not using regexp?
...e. You can use regular expressions in a parser, but you will need a whole array of regular expressions for each possible state of parsing.
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The new syntax “= default” in C++11
...n you need to use = default.
§8.5.1/1 [dcl.init.aggr] An aggregate is an array or a class with no user-provided constructors, [and...]
§12.1/5 [class.ctor] A default constructor is trivial if it is not user-provided and [...]
§9/6 [class] A trivial class is a class that has a trivial default ...