Tutorial by Examples: el

To view all elements in the index change the print options that “sparsifies” the display of the MultiIndex. pd.set_option('display.multi_sparse', False) df.groupby(['A','B']).mean() # Output: # C # A B # a 1 107 # a 2 102 # a 3 115 # b 5 92 # b 8 98 # c 2 87 # c 4 104 #...

import xlsxwriter # create a new file workbook = xlsxwriter.Workbook('your_file.xlsx') # add some new formats to be used by the workbook percent_format = workbook.add_format({'num_format': '0%'}) percent_with_decimal = workbook.add_format({'num_format': '0.0%'}) bold = workbook.add_forma...

<?php /* this example is based on the advanced template * This file is located in * backend/views/layouts/main.php */ use yii\helpers\Html; // here the asset is registered use cinghie\adminlte\AdminLTEAsset; AdminLTEAsset::register($this); ?> <?php $this->beginPage...

First lets get some data into a temp table named #systables and ad a incrementing row number so we can query one record at a time select o.name, row_number() over (order by o.name) as rn into #systables from sys.objects as o where o.type = 'S' Next we declare some var...

If the source collection is of a type that is not immutable, elements accessed through a ReadOnlyCollection can be modified. public class Item { public string Name { get; set; } public decimal Price { get; set; } } public static void FillOrder() { // An order is generated ...

There’s no API that can break the locked lease of blob storage in Microsoft Azure . This code snippet demonstrates break the locked lease of blob storage in Microsoft Azure (PowerShell). $key = (Get-AzureRmStorageAccountKey -ResourceGroupName $selectedStorageAccount.ResourceGroupName -name $select...

A linked list is either: the empty list, represented by None, or a node that contains a cargo object and a reference to a linked list. #! /usr/bin/env python class Node: def __init__(self, cargo=None, next=None): self.car = cargo self.cdr = next d...

Please download example at: Hello World Project Open project HelloWorld.sqlproj in Visual Studio From the Build menu select Publish HelloWorld... The project will now build and bring up a dialog window Edit the Target database connection Click Publish A pane titled Data Tools Operations shou...

Normally, we opt this approach if we want complete encapsulation and don't want to make our methods public. Ascx <div style="width: 100%;"> <asp:Button ID="btnAdd" runat="server" Text="Add" OnClick="btnAdd_Click"></asp:butto...

void parallelAddition (unsigned N, const double *A, const double *B, double *C) { unsigned i; #pragma omp parallel for shared (A,B,C,N) private(i) schedule(static) for (i = 0; i < N; ++i) { C[i] = A[i] + B[i]; } } This example adds two vector (A and B into...

#include <omp.h> #include <stdio.h> int main (void) { int t = (0 == 0); // true value int f = (1 == 0); // false value #pragma omp parallel if (f) { printf ("FALSE: I am thread %d\n", omp_get_thread_num()); } #pragma omp parallel if (t) { printf (&quo...

#include <omp.h> #include <unistd.h> #include <iostream> #include <list> static void processElement (unsigned n) { // Tell who am I. The #pragma omp critical ensures that // only one thread sends data to std::cout #pragma omp critical std::cout <...

Consider the following example: public class Example { public int a, b, c, d; public void doIt() { a = b + 1; c = d + 1; } } If this class is used is a single-threaded application, then the observable behavior will be exactly as you would expect. For instan...

# create the co-process coproc bash # send a command to it (echo a) echo 'echo Hello World' >&"${COPROC[1]}" # read a line from its output read line <&"${COPROC[0]}" # show the line echo "$line" The output is "Hello World".

C:\makefile: helloWorld : [TAB]echo hello world run results: C:\>make echo hello world hello world Note: [TAB] should be replaced by an actual tab, stackoverflow replaces tabs with spaces, and spaces are not used the same as tabs in a makefile.

The WHILE loop is executed untill the condition of end is fulfilled. Simple example: DECLARE v_counter NUMBER(2); --declaration of counter variable BEGIN v_counter := 0; --point of start, first value of our iteration WHILE v_counter < 10 LOOP --exit condition dbms_output....

Protractor can selectively run groups of tests using fdescribe() instead of describe(). fdescribe('first group',()=>{ it('only this test will run',()=>{ //code that will run }); }); describe('second group',()=>{ it('this code will not run',()=>{ //code...

Many real-world database tables have many rows with DATETIME OR TIMESTAMP column values spanning a lot of time, including years or even decades. Often it's necessary to use a WHERE clause to retrieve some subset of that timespan. For example, we might want to retrieve rows for the date 1-September-2...

echo "Hello, world!" Even in bash, this program works similarly in most other languages. The program has no input and will always function the same in an idealized world - run time should never change. Thus Hello World has constant complexity. Almost all elementary operations are assum...

This example shows how to deploy the "Hello World" program as a library and how to link it with other targets. Say we have the same set of source/header files as in the http://www.riptutorial.com/cmake/example/22391/-hello-world--with-multiple-source-files example. Instead of building fro...