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To upgrade from 10.8.5 to 10.9 or 10.10 you had to "purchase" Mavericks or Yosemite in the Apple App Store previously. Purchase is overstated because it was free then. After launching the final El Capitan 10.11.0 in the public the possibility to get the former systems in the store is gone if they don't populate your purchase list. The Combo Updaters only ...


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CMD+Delete -- Send Hex Code -- 0x15 To delete the whole line (similar to Option+U)


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Accordingly with the link here you have to download and install this software: Mac OS X 10.1 (PPD File). After the installation of the file: PPDInst.dmg, I suggest you to install the printer from the System Preferences > Printers & Scanners > (add a new printer by pressing + button) and you should not have problem for the printer's driver.


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Folder with the question mark usually means "no valid device to boot from". Try to boot to recovery (if any exists) by keeping pressing command + r when turning on the Mac. You should be able to reinstall it there. If still fails you may try Mac OS X internet recovery (cmd+option+r keeps pressed while pressing power button) If still fails, get someone ...


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If you have an internet connection, one thing you could do is use the website DataJoy (from the makers of ShareLaTeX), which is basically an online (collaborative) editor for both Python and R. However, DataJay is not free. There is a 7-day free trial, but it normally costs $20 per month (at the time of writing). That being said, it is possible to get a ...


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Let her try this site: TutorialsPoint, where she can use R or R-Studio. Also, this RollApp may be the answer.


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R is available at Ideone.com. I have'nt used R, but I don't think every feature of the language is available there, though.


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It's actually pretty simple, in that, if it is not in the app store it can't be installed, unless you want to go the jailbreak route because you found an "R" app for jailbroken IOS devices.



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