Este programa organiza fundamentalmente todos los videos que tengas en tu computadora. Ademas de bajar videos de youtube, google video, dailymotion a tu disco duro. Lo puedes obtener en Get Miro. Lo mejor de todo es Open Source.
A language and environment for statistical computing.
R is a language and environment for statistical computing and graphics. R is a GNU project which is similar to the S language and environment which was developed at Bell Laboratories (formerly AT&T, now Lucent Technologies) by John Chambers and colleagues. R can be considered as a different implementation of S. There are some important differences, but much code written for S runs unaltered under R.
R provides a wide variety of statistical (linear and nonlinear modelling, classical statistical tests, time-series analysis, classification, clustering, …) and graphical techniques, and is highly extensible. The S language is often the vehicle of choice for research in statistical methodology, and R provides an Open Source route to participation in that activity.
One of R’s strengths is the ease with which well-designed publication-quality plots can be produced, including mathematical symbols and formulae where needed. Great care has been taken over the defaults for the minor design choices in graphics, but the user retains full control.
R is available as Free Software under the terms of the Free Software Foundation’s GNU General Public License in source code form. It compiles and runs on a wide variety of UNIX platforms and similar systems (including FreeBSD and Linux), Windows and MacOS.
R is an integrated suite of software facilities for data manipulation, calculation and graphical display. It includes:
· an effective data handling and storage facility,
· a suite of operators for calculations on arrays, in particular matrices,
· a large, coherent, integrated collection of intermediate tools for data analysis,
· graphical facilities for data analysis and display either on-screen or on hardcopy, and
· a well-developed, simple and effective programming language which includes conditionals, loops, user-defined recursive functions and input and output facilities.
The term “environment” is intended to characterize it as a fully planned and coherent system, rather than an incremental accretion of very specific and inflexible tools, as is frequently the case with other data analysis software.
R, like S, is designed around a true computer language, and it allows users to add additional functionality by defining new functions. Much of the system is itself written in the R dialect of S, which makes it easy for users to follow the algorithmic choices made. For computationally-intensive tasks, C, C++ and Fortran code can be linked and called at run time. Advanced users can write C code to manipulate R objects directly.
Many users think of R as a statistics system. We prefer to think of it of an environment within which statistical techniques are implemented. R can be extended (easily) via packages. There are about eight packages supplied with the R distribution and many more are available through the CRAN family of Internet sites covering a very wide range of modern statistics.
R has its own LaTeX-like documentation format, which is used to supply comprehensive documentation, both on-line in a number of formats and in hardcopy.
Hi, this is Gilberto “Xyhthyx” Miralla. I will ocassionally bring you posts about Linux, FOSS (Free and Open Source Software) and other related items.
Today it was announced that Debian (my Linux distribution of choice) now has support for the FreeBSD kernel. As this has just been announced, there is only a limited number of packages and support available. As more developers get involved, the kernel should receive a software library as large as its Linux cousin. Debian is now truly the universal operating system.
Excerpt from Slashdot.org:
“Today Debian gets one step closer to really becoming ‘the universal operating system’ by adding two architectures based on the FreeBSD kernel to the unstable archive. This does not mean that the Debian project is ditching the Linux kernel; Debian users will be able to choose which kernel they want to install (at least on on the i386 and amd64 architectures) and get more or less the same Debian operating system they are used to. This makes Debian the first distribution, and probably the first large OS, to support two completely different kernels at the same time.”
Review: Open Office 3.0
With the release of Open Office comes a new review. This release features many changes, so I’ll only highlight a few changes.
What is Open Office?
Open Office is a free and open source alternative to MS Office Suit. It features OO Base (Data management), OO Calc (Spreadsheet), OO Draw (Graphics), OO Impress (Presentations), OO Math (Equation and Formula), and OOWriter (Word Processing).
The Open Office suite is able to open every MS Office equivalent and save as one, except Office 2007. Instead, it can save as .doc–the MS Office 2003 format.
Why not just have OpenOffice.org tell us?
OpenOffice.org 3 is the leading open-source office software suite for word processing, spreadsheets, presentations, graphics, databases and more. It is available in many languages and works on all common computers. It stores all your data in a international open standard format and can also read and write files from other common office software packages. It can be downloaded and used completely free of charge for any purpose.
What makes Open Office great?
Now that you know what Open Office is, here is what makes it great and better than MS Office:
- It is free.
- It is available for Linux, Macs, and Windows. MS Office 2007 is only available for Windows XP SP2 and newer version and OSX for Macs.
- You can save your documents in open format. This allows for future compatibility. MS Office changes their formats every few releases.
- Easy to learn. Compared to learning MS Office, the Open Office suite is easier to understand and find what you need.
- Scores of plugins are available. Since Open Office is open source, developers from around the globe are able to create extensions for the office suite to better suit your needs.
Changes to Open Office
- Visual improvements (courtesy of the implementation of a new Aqua UI). New colors and icons for the toolbars and desktop along with and a new splash-screen. The zoom is now a scrollbar in the bottom right corner.
How are the changes? Honestly, I don’t care too much for the prettying up. OO isn’t as grey as before, so some users will find it more appealing. As far as the new zoom, I hate it, but it will grow on me.
- PDFs can be imported and changed without the source file.How are the changes? Very much welcomed. Being able to import PDF files without the original source file is a huge plus to OO.
- New multi-page view in Writer.How are the changes? I haven’t found a need for this yet, other than viewing consistency in layout. However, I’m sure there are others who will welcome the addition.
- Calc has a new column limit (1024 instead of 256).How are the changes? This is huge news for data lovers and possibly one of the best additions to OO 3.0. The more data you can enter the better.
- Draw and Impress now have the ability to crop images.
How are the changes? The addition of the crop tool is welcomed. But, the usability needs to improve. Cropping to a specific size was almost to the point of undoable. I’ll stay with GIMP until then.
- Mac users can install OpenOffice without X11.How are the changes? No more X11 complications for users? Hell, yes.
- A new grammar checking tool in Writer.How are the changes? The grammar tool isn’t perfect, but it is a welcomed addition to OO. This will definitely help bring more people to Open Office, especially students.
MS Office still holds the lead in grammar and image manipulation. But, Open Office has come through once again with additional tools not found in the commercial giant, like PDF import. With Open Office’s large support community and worldwide developers users can feel at home with Open Office 3.0. As such, I recommend OO to all students, teachers, and businessmen.