Tutorial by Topics: ons

d3 is a powerful library for creating interactive charts; however, that power stems from users having to work at a lower level than other interactive libraries. Consequently many of the examples for d3 charts are designed to demonstrate how to produce a particular thing - e.g. whiskers for a box and...

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In respect of ionic2 the constructor: in simple terms we use it to create instance of our plugins, services etc. for example: You have a page(view) where you want to show the list of all students, and you have a json file that contains all the students (this file is your data file) what you have to ...

Some frequently asked questions about the version numbers in iText. Why do the version numers jump from 2 to 5, and from 5 to 7? There are several reasons for skipping version numbers. In 2009, the version number of iText (Java) and iTextSharp (C#) were not in sync. The Java version was at ver...

A model widely used in traditional statistics is the linear regression model. In this article, the objective is to follow the step-by-step implementation of this type of models. We are going to represent a simple linear regression structure. For our study, we will analyze the age of the children on...

The function is just like sub. But function returns a value. A function can accept single or multiple parameters.

CustomErrors are a legacy (backwards compatable) element, used by Visual Studio Development Server (aka. VSDS or Cassini). httpErrors are the new element which is only used by IIS7.

Modal Presentation styles are used when you are transitioning from one view controller to another. There are 2 ways of achieving this customization. One is through code and another through Interface Builder(using segues). This effect is achieved by settingmodalPresentationStyle variable to an instan...

I am using SQL Server since 2004. I started with 2000 and now I am going to use SQL Server 2016. I created tables, views, functions, triggers, stored procedures and wrote many SQL queries but I did not use many new features from subsequent versions. I googled it but unfortunately, I did not find all...

Fitting a function which describes the expected occurence of data points to real data is often required in scientific applications. A possible optimizer for this task is curve_fit from scipy.optimize. In the following, an example of application of curve_fit is given.

With the datatables plugin you can add export buttons to your table. You can export your table data to excel, pdf or copy it to the clipboard. This manual is intended for the bootstrap 4 framework.

SCons is a multi-step build system. First it reads all SConstruct and SConscript to execute Python code and create build graph with targets. Then it scans filesystem to detect which targets from the build graph should be updated, and after that it executes command to build outdated targets.

Fortran files come under a variety of extensions and each of them have a separate meaning. They specify the Fortran release version, code formatting style and the usage of preprocessor directives similar to C programming language.

IPython (and the Jupyter Notebook) defines a special meaning for the underscore. It always contains the the most recent output. This comes in useful when processing data in multiple steps. This is demonstrated in the example above. To clean up the text, it is run through a few regular express...

There are a number of exceptions that can be thrown while using a webdriver. The examples below are meant to give an idea of what they mean.

The GNU C compiler comes with some cool features that are not specified by the C standards. These extensions are heavily used in system software and are a great tool for performance optimization.