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plot() on Function
How to use the plot() function on a function? If you have a known function with a single independent variable, you can pass the data frame as the first argument followed by a starting value and an ending value to the plot function to visualize the function. Call plot() with the sin() function: &...
2023-03-17, ∼1115🔥, 0💬

"transform" Attribute for Transformations
What is the "transform" attribute and associated transformation functions? When drawing a graphical object, you can specify a sequence of transformation functions through the "transform" attribute. Here is the syntax of specifying the "transform" attribute on a graphical object element: &lt;{obj...
2023-08-03, ∼1113🔥, 0💬

What Are SVG Coordinate Systems
What Are SVG Coordinate Systems? There are two coordinate systems involved when rendering a graphical object on the SVG canvas: 1. The Canvas Coordinate System - It is a 2-dimensional space used in a "svg" element to define the size of the drawing canvas where all child graphical objects will be ren...
2023-08-17, ∼1110🔥, 0💬

Transform Group of Objects Using "g"
How to transform a group of objects using the "g" element? The "g" element is a container that allows you to group multiple graphical objects together as a single object. This allows you to transform the group as a whole, instead individual objects. Here is an HTML document, transformation-group.htm...
2023-08-03, ∼1109🔥, 0💬

Use SVG Images in IFRAME Tags
How to Use SVG Images in HTML &lt;iframe&gt; Tags? If you want to use SVG images in HTML &lt;iframe&gt; Tags, you can save SVG images in .svg files and include SVG image file names in the "src" attribute of &lt;iframe&gt; Tags. You can follow this tutorial to test this. 1. Sa...
2022-12-03, ∼1107🔥, 0💬

Commonly Used Terms in BitTorrent
Where to find descriptions on Commonly Used Terms in BitTorrent. Here is a list of descriptions on Commonly Used Terms in BitTorrent compiled by FYIcenter.com team. What Is Swarm in BitTorrent What Is Peer in BitTorrent What Is Downloader in BitTorrent What Is Leech in BitTorrent What Is Seed in Bit...
2023-10-27, ∼1105🔥, 0💬

What Are Nested SVG Canvases
What Are Nested SVG Canvases? Nested SVG Canvases are two canvases with one nested inside the other. Remember that a SVG canvas is represented by a "svg" XML element. So the following XML document represents two nested SVG canvases: &lt;svg id="outer"&gt; &lt;!-- objects on the outer can...
2023-02-03, ∼1102🔥, 0💬

Using Mozilla Firefox on Mac Computer
Where to find answers to frequently asked questions on Using Mozilla Firefox on Mac Computer? Here is a list of frequently asked questions and their answers compiled by FYIcenter.com team on Using Mozilla Firefox on Mac Computer: Install Mozilla Firefox on Mac Computer First Time Open Mozilla Firefo...
2022-11-30, ∼1102🔥, 0💬

What Is Downloader in BitTorrent
What Is Downloader in BitTorrent? A Downloader in BitTorrent is a Peer in the BitTorrent network, who does not have 100% of a file yet and is still download the file. A Downloader can also share the unfinished file for others to download.   ⇒ What Is Leech in BitTorrent ⇐ What Is Peer in BitTorrent...
2022-08-26, ∼1101🔥, 0💬

Use SVG Images in IMG Tags
How to Use SVG Images in HTML &lt;img&gt; Tags? If you want to use SVG images in HTML &lt;img&gt; Tags, you can save SVG images in .svg files and include SVG image file names in the "src" attribute of &lt;img&gt; Tags. You can follow this tutorial to test this. 1. Save the fo...
2022-10-25, ∼1098🔥, 0💬

"mtable" - MathML Table Element
How to use the MathML Table Element: "mtable"? "mtable" is the MathML Table Element that allows you to specify sub-elements as table rows. The syntax for "mtable" element is: &lt;mtable&gt; row row ... &lt;/mtable&gt; Note that each row in a "mtable" element must be defined as a "mtr...
2025-06-18, ∼1097🔥, 0💬

Default SVG Viewport in HTML "P" Tag
What Is the Default SVG Viewport in an HTML &lt;p&gt; element? If you have a SVG image with the default Viewport and include it in an HTML &lt;p&gt; element, the width of the Viewport will be set the width of the parent element of the &lt;p&gt; element. This is because &l...
2023-02-03, ∼1096🔥, 0💬

json.php API - Get "editions" Objects By DOIs
How to get "editions" objects with Library Genesis API, json.php, for a given edition object DOI? If you know the DOI (Document Object Identifier) of an edition, you can get the edition details by calling the Library Genesis API, json.php, with object=e and doi={doi} parameters. For example, the fol...
2023-08-25, ∼1085🔥, 0💬

Use MathML Elements in EMBED Tags
How to Use MathML Elements in HTML &lt;embed&gt; Tags? If you want to use MathML elements in HTML &lt;embed&gt; Tags, you can save MathML elements in .mml files and include MathML file names in the "src" attribute of &lt;embed&gt; Tags. You also need to specify the type="appl...
2026-04-13, ∼1081🔥, 0💬

Data Structure - Data Frame
What is a Data Frame? Data Frame is a generalization of matrix where columns may have different data types. Technically, a data frame is a special list. 1. Create a factor object with the data.frame() function - &gt; name = c("Lori", "Mike", "Nill", "Sofi") &gt; sex = factor( c("F", "M", "M"...
2023-05-31, ∼1076🔥, 0💬

BROWSERS - Crawler or Chrome
What Is BROWSERS Panel in GoAccess report? BROWSERS Panel in GoAccess report displays which browser the host used when it hit the server. It attempts to provide the most specific version of each browser. Here is an example of BROWSERS Panel in GoAccess report: GoAccess Report - Client Browsers     ...
2023-01-29, ∼1074🔥, 0💬

What Is R Software Environment
What is R Software Environment? R is a free software environment for statistical computing and graphics. It compiles and runs on a wide variety of UNIX platforms, Windows and MacOS. R was developed by Ross Ihaka and Robert Gentleman in 1993. R is an integrated suite of software facilities for data m...
2023-08-03, ∼1073🔥, 0💬

Running GoAccess Report in Real-Time Mode
Where to find answers to frequently asked questions on Running GoAccess Report in Real-Time Mode? Here is a list of frequently asked questions and their answers compiled by FYIcenter.com team on Running GoAccess Report in Real-Time Mode: How GoAccess Real-Time Report Works Test GoAccess WebSocket Se...
2022-12-12, ∼1072🔥, 0💬

First Time Open Mozilla Firefox on Mac
How to set up Mozilla Firefox on Mac computer? When you run Mozilla Firefox for the first time after the installation, it will guide you to go through the setup process as shown below. 1. Run Mozilla Firefox from the Launchpad. You see the security warning: "Firefox" is an application downloaded fro...
2022-11-30, ∼1072🔥, 0💬

Define SVG Viewbox-Viewport Mapping
How to define the SVG Viewbox-Viewport Mapping? The Viewbox-Viewport Mapping can be defined with attributes of the "svg" element: 1. Use &lt;svg viewBox="{view_min_x} {port_min_y} {view_width} {view_height}" .../&gt; attribute to set the Viewbox area which runs from ({view_min_x}, {view_min_...
2023-08-17, ∼1070🔥, 0💬

Build Graph Manually
How to build a graph manually using the built-in graphics package? You can build a graph manually using low level functions provided in built-in graphics package as show below: &gt; # get a sample of x-y coordinates &gt; sample = stats::lowess(cars) &gt; sample $x [1] 4 4 7 7 8 9 10 10 1...
2023-03-17, ∼1068🔥, 0💬

Non-Root Access to Apache Web Server Log Files
How to provide Non-Root Access to Apache Web Server Log Files? By default, Apache Web Server Log Files are restricted to root user only. If you want to run GoAccess as a non-root user to access them you can follow these examples: 1. Check the current permissions on Apache Web Server Log Files: fyice...
2022-12-23, ∼1067🔥, 0💬

SVG Coordinates, Size and Viewport
Where to find tutorials on SVG Coordinates, Size and Viewport. Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on SVG Coordinates, Size and Viewport. What Are SVG Coordinate Systems What Is SVG Viewbox-Viewport Mapping Define SVG Viewbox-Viewport ...
2023-08-17, ∼1030🔥, 0💬

Basic Data Types
What are primary Data Types? There are 5 primary data types supported in R. 1. Character - Character data type represents a sequence of characters as shown below: &gt; s = "Hello World!" &gt; print(s) [1] "Hello World!" &gt; is.character(s) [1] TRUE &gt; typeof(s) [1] "character" 2. ...
2023-06-11, ∼1029🔥, 0💬

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