Redmine R: The R Project for Statistical Computing yEd - Graph Editor “ As a software developer, I used to use Graphviz for my code comprehension needs. While its compact format has its advantages, it was just too much effort to input data - particularly relationships. I wanted to be able to create relationships by dragging my mouse from one node to another. This is exactly how yEd works.You don't have to sacrifice the longevity of plain-text that Graphviz files offer. yEd works entirely on the XML-based GraphML format. The R language, for programmers Outline Introduction I have written software professionally in perhaps a dozen programming languages, and the hardest language for me to learn has been R. The language is actually fairly simple, but it is unconventional. These notes are intended to make the language easier to learn for someone used to more commonly used languages such as C++, Java, Perl, etc. R is more than a programming language. Assignment and underscore The assignment operator in R is <- as in e <- m*c^2. It is also possible, though uncommon, to reverse the arrow and put the receiving variable on the right, as in m*c^2 -> e. It is sometimes possible to use = for assignment, though I don’t understand when this is and is not allowed. However, when supplying default function arguments or calling functions with named arguments, you must use the = operator and cannot use the arrow. At some time in the past R, or its ancestor S, used underscore as assignment. Variable name gotchas Vectors The primary data type in R is the vector.
Open-Source Routing and Network Simulation | Open-Source Network Simulators Latest News February 12, 2020 The Linux Network Stack Test (LNST) has been ported from Python 2 to Python 3. See the project web site at: research paper, *Internet of Things (IoT): Research, Simulators, and Testbeds by M. Chernyshev, Z. Older news is archived on the Network Simulator News page. List of Network Simulators and Emulators This is a list of open-source network simulators and network emulators that run on Linux or BSD. Antidote (NRE Labs) Antidote is a network emulator combined with a presentation framework designed to create and deliver networking technology training. Please click here to see my posts about Antidote. Antidote web site: NRE Labs web site: Cloonix The Cloonix network simulator provides a relatively easy-to-use graphical user interface. Please click here to see my posts about Cloonix. Cloonix web site: Kathara Mininet Shadow vrnetlab
Why R? The pros and cons of the R language The R programming language is an important tool for development in the numeric analysis and machine learning spaces. With machines becoming more important as data generators, the popularity of the language can only be expected to grow. But R has both pros and cons that developers should know. With interest in the language growing, as shown on language popularity indexes such as TIobe, PyPL, and Redmonk, R first appeared in the 1990s and has served as an implementation of the S statistical programming language. Notes Roger Peng, an 18-year R programming veteran who teaches R both at the university and on the Coursera online platform, "R is the most popular language used in the field of statistics." "I like [R] because it’s very easy to program in from a more computer science-y level," says Peng. "R is the best way to create reproducible, high-quality analysis. R's strong package ecosystem and charting benefits R's advantages include its package ecosystem.
FreeMind The Julia Language Documentation – NeDi Download the “The NeDi Guide” as EPUB or PDF Environment NeDi unfolds its full potential with CDP, FDP and/or LLDP capable devices in the core of your network. Location aware network health… NeDi needs SNMP read access for all network hardware. Network Devices NeDi requires unique device names, since this is the primary key. Region;City;Building;Floor;[Room;][Rack;][RU;][Height] The building or streetaddress can persist of several sub-buildings with a 2nd separator (e.g. _). A couple examples: Switzerland;Zurich;Main Station;5;DC;Rack 17;7 FL;Orlando;42 Pine St_A;54;Closet;Wallrack;1 Cities show their size based on devices: The same applies to Buildings where as important ones can be “painted” red using redbuild in nedi.conf: Network Nodes (client, server etc.) The MAC address is used as primary key for the nodes. Nodes and interfaces with speed, duplex or SNR Make sure you edit nedi.conf before starting to discover your network. Graphs PoE load during a VoIP migration. CLI access Test a Device
Jupyter and the future of IPython — IPython