Distributor of all category brand name products. Buy in bulk for resale on Amazon FBA, Ebay, Walmart, Retail Stores, Retail Chains. R-squared (or coefficient of determination) is a statistical model evaluation measure that assesses the goodness of a regression model. It helps data analysts to explain model performance compared to the base model. Its value lies between 0 and 1. A value near 0 represents a poor model while a value near 1 represents a perfect fit.
- If You Have An Internet Connection Available, There Is An Easy Way That Works Every Time. If You Google “superscript 2” One Of The Top Results Will...
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Start up from macOS Recovery
Determine whether you're using a Mac with Apple silicon, then follow the appropriate steps:
Apple silicon
Turn on your Mac and continue to press and hold the power button until you see the startup options window. Click the gear icon labeled Options, then click Continue.
Intel processor
Make sure that your Mac has a connection to the internet. Then turn on your Mac and immediately press and hold Command (⌘)-R until you see an Apple logo or other image.
If you're asked to select a user you know the password for, select the user, click Next, then enter their administrator password.
Reinstall macOS
Select Reinstall macOS from the utilities window in macOS Recovery, then click Continue and follow the onscreen instructions.
Follow these guidelines during installation:
- If the installer asks to unlock your disk, enter the password you use to log in to your Mac.
- If the installer doesn't see your disk, or it says that it can't install on your computer or volume, you might need to erase your disk first.
- If the installer offers you the choice between installing on Macintosh HD or Macintosh HD - Data, choose Macintosh HD.
- Allow installation to complete without putting your Mac to sleep or closing its lid. Your Mac might restart and show a progress bar several times, and the screen might be empty for minutes at a time.
After installation is complete, your Mac might restart to a setup assistant. If you're selling, trading in, or giving away your Mac, press Command-Q to quit the assistant without completing setup. Then click Shut Down. When the new owner starts up the Mac, they can use their own information to complete setup.
Other macOS installation options
When you install macOS from Recovery, you get the current version of the most recently installed macOS, with some exceptions:
- On an Intel-based Mac: If you use Shift-Option-Command-R during startup, you're offered the macOS that came with your Mac, or the closest version still available. If you use Option-Command-R during startup, in most cases you're offered the latest macOS that is compatible with your Mac. Otherwise you're offered the macOS that came with your Mac, or the closest version still available.
- If the Mac logic board was just replaced, you may be offered only the latest macOS that is compatible with your Mac. If you just erased your entire startup disk, you may be offered only the macOS that came with your Mac, or the closest version still available.
You can also use these methods to install macOS, if the macOS is compatible with your Mac:
- Use the App Store to download and install the latest macOS.
- Use the App Store or a web browser to download and install an earlier macOS.
- Use a USB flash drive or other secondary volume to create a bootable installer.
iOS Swift Issues
Property cannot be marked @objc because its type cannot be represented in Objective-C
Question or problem in the Swift programming language: I’m finishing a port for a project that was written in Swift to support Objective-C. A lot of the project was written to support Objective-C but not the properties on a particular class.
Swift 4 Language
Double, Floating-Point Numbers in Swift
Double-precision, Floating-point numbers are numbers that have fractional parts (usually expressed with a decimal point). You should use a floating-point type in Swift programs whenever you need a number with a decimal, such as 24.02 or 3.25.
Apple Products Information
Link Download iOS Firmware File For iPad
Before downloading the firmware, please determine the exact version of your ipad. Based on the model number of your iPad, you will be able to identify which iOS firmware file you need to download.
If You Have An Internet Connection Available, There Is An Easy Way That Works Every Time. If You Google “superscript 2” One Of The Top Results Will...
Apple Designed Processors – A series
Apple has been developing A series of chips designed exclusively for their own consumer products. The Apple “A” series is a family of “Systems on Chip” (SoC) used in multiple devices iPhones, iPod Touches, iPads, Apple TVs, and Apple Watches.
Tag Cloud
Since You Didn't Specify What Device You Are Using, I Will List The 3 Most Common Devices. Mac: Pressing 'Command' + 'Control' + 'Space' Will Open...
MacOS Tips
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Why are refactoring shortcuts in eclipse missing on mac os?
Question or issue on macOS: I’m using Eclipse 3.6.1 on Mac Os.
Git, XIBs, merging
Question or issue on macOS: I was just about to start a git branch off the master branch to add some functionality to my application, that would also involve some additions to the interface.