OpenNI SDK 2.0Whatis newThe OpenNI@(openni.org)has released the new OpenNi 2.0 SDK. According to the manufacturer, this newversion has some interesting examples like 3D scanning and reconstruction,facial tracking, hand skeleton, scene segmentation, measurement tools, 3Danimations, etc. I guess the good news about this new version is that now youcan install OpenNi 2.0 and Microsoft Kinect SDK 1.6 on the same machine and runboth packages using the Microsoft Kinect drive. Yes, now OpenNI is compatiblewith Kinect drive so you dont need get painful switching from one driver toanother to be able use both packages. InstallationTheinstallation of OpenNI 2.0 is very simple. You can download the new version 2.0from here.Downloadand install the Microsoft Windows Kinect SDK 1.6Downloadand install the Microsoft Windows ToolkitTocheck the installation, connect the Kinect device to an USB and verify theDevice view in Control Panel to see if the drives are installed. You will seesomething similar to the screenshot below: Note the entry named Kinect for Windows Downloadand install the OpenNI SDK 2.0a. Ifnecessary, you can compile the source code. Before compile, take care of thenew environment variables regarding to OPENNI2. After download, my compilationperformed like a charm and had no problems (I use Windows 7 x64).TestingNote thatthere are some OpenNI2 examples that will require the glut component.Otherwise, you will get an error saying cannot find glut component. Fortesting, go to the samples directory of OpenNI and Microsoft SDK and run thesample applications. If all is ok, you will be able to Kinect device workingfor both packages. R language has became one of the most used language between statisticians and data miners that use it to develop applications applied to resolve statistical and machine learning problems. And it is free!Then couple days ago I had to develop an simple application about analysis model and so, I decided to use a dataset from the World Bank website. The application is simple but uses powerful packages like GoogleVis package. Thanks for the amazing community that has developed the R language. You can check the application in this link and see the simple presentation.Here the two files that make the entire job.ui.R fileserver.R file UM HOTSPOT PORTATIL COM RASPBERRY PiCom a massificacao do uso de dispositivos moveis, a procura por hotspot ou wi-fi abertos tem se tornado frequente entre os usuarios desses dispositivos. Tempos atras eu estava passando alguns dias na praia num local onde meu unico meio de acesso a internet era um Modem USB 3G da Huawei Technologies, modelo E173s. Na ocasiao eu dispunha de 2 laptops e 1 smartphone Samsung. Pelo fato de ser um modem usb, apesar de ser inconveniente, era possivel mudar o modem de um laptop para o outro mas ja o smartphone, apesar de possivel, a solucao para conecta-lo a internet ja era um pouco mais complicada. Entao, como eu dispunha de um kit composto do Raspberry Pi B+, depois de dar um giro pela internet, resolvi montar um hotspot com o RPi, o que me facilitou a conexao de qualquer dispositivo a internet, sem a necessidade de ficar trocando o modem de dispositivo.Mas ai voce pergunta: pra