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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, ∼825🔥, 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, ∼816🔥, 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, ∼815🔥, 0💬

Install R Software Environment on Windows
How to R Software Environment on Windows? Installing R Software Environment on Windows is very simple as shown in this tutorial. 1. Go to R Project Website . 2. Click the "CRAN mirror" in the "Getting Started" section. You see a list of mirror sites. 3. Select a mirror site near your location. You s...
2023-07-29, ∼813🔥, 0💬

Introduction to MathML (Mathematical Markup Language)
Where to find tutorials on Introduction to MathML (Mathematical Markup Language). Here is a list of tutorials to answer many frequently asked questions compiled by FYIcenter.com team on Introduction to MathML (Mathematical Markup Language). What Is MathML (Mathematical Markup Language) Insert MathML...
2025-10-14, ∼812🔥, 0💬

Insert MathML Element in HTML Documents
How to Insert MathML Elements in HTML Documents? You can insert a MathML Element in an HTML document by inserting the MathML XML document directly any where in the HTML document. Here is a simple example of inserting a MathML element inside an HTML document. Save it in a file called, Square-Root.htm...
2025-10-14, ∼811🔥, 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, ∼804🔥, 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, ∼803🔥, 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, ∼803🔥, 0💬

Generate CSV Report from Apache Log File
How to Generate CSV Report from Apache Log File? If you want to Generate CSV Reports from an Apache Web server log file, you can follow these steps: 1. Set the output file with an .csv extension: fyicenter$ goaccess access_log -o report.csv fyicenter$ more report.csv "0",,"general",,,,,,,,"2022-12 -0...
2023-01-06, ∼803🔥, 0💬

"mtr" - MathML Table Row Element
How to use the MathML Table Row Element: "mtr"? "mtr" is the MathML Table Row Element that allows you to specify a row in a "mtable" element. The syntax for "mtr" element is: &lt;mtr&gt; cell cell ... &lt;/mtr&gt; Note that each cell in a "mtr" element must be defined as a "mtd" elem...
2025-04-11, ∼801🔥, 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, ∼798🔥, 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, ∼793🔥, 0💬

Install Mozilla Firefox on Mac Computer
How to install Mozilla Firefox on Mac Computer? If you want to use Mozilla Firefox on your Mac computer, you can follow this tutorial to install it: 1. Go to Mozilla Firefox Website with your existing Web browser like Apple Safari. 2. Click "Download Firefox" button at the top right corner. An insta...
2022-11-30, ∼789🔥, 0💬

HTTP STATUS CODES - 200 or 404
What Is HTTP STATUS CODES Panel in GoAccess report? HTTP STATUS CODES Panel in GoAccess report displays values of the numeric status code to HTTP requests. Here is an example of HTTP STATUS CODES Panel in GoAccess report: GoAccess Report - HTTP Status Codes     ⇒ GEO LOCATION - 200 or 404 ⇐ REFERRI...
2023-01-29, ∼784🔥, 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, ∼778🔥, 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, ∼760🔥, 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, ∼753🔥, 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, ∼748🔥, 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, ∼746🔥, 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, ∼744🔥, 0💬

Generate JSON Report from Apache Log File
How to Generate JSON Report from Apache Log File? If you want to Generate JSON Reports from an Apache Web server log file, you can follow these steps: 1. Set the output file with a .json extension: fyicenter$ goaccess access_log -o report.json fyicenter$ python -m json.tool report.json | more { "gen...
2023-01-06, ∼735🔥, 0💬

Generate Report from Multiple Log Files
How to Generate Reports from Multiple Log Files? There are several ways to Generate Reports from Multiple Log Files: 1. Specify multiple log files explicitly: fyicenter$ goaccess access_log-20221121 access_log-20221127 -o report.html 2. Specify multiple log files using wildcards: fyicenter$ goaccess...
2022-12-23, ∼730🔥, 0💬

Generate Log Report for Given Document Paths
How to Generate Log Report for Given Document Paths with GoAccess? GoAccess does not have any functionality to limit Log Report for given document paths. To Generate Log Report for given document paths, you need to filter out log files with other command line tools, like "grep" and "sed". Here are s...
2022-12-12, ∼724🔥, 0💬

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