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How to delete multiple values from a vector?
I have a vector like: a = c(1:10) and I need to remove multiple values, like: 2, 3, 5
8 Answers
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Setting ANDROID_HOME enviromental variable on Mac OS X
Could anybody post a working solution for setting ANDROID_HOME via the terminal?
12 Answers
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What is the purpose of willSet and didSet in Swift?
...point seems to be that sometimes, you need a property that has automatic storage and some behavior, for instance to notify other objects that the property just changed. When all you have is get/set, you need another field to hold the value. With willSet and didSet, you can take action when the value...
Accept function as parameter in PHP
I've been wondering whether is possible or not to pass a function as parameter in PHP; I want something like when you're programming in JS:
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Rotating videos with FFmpeg
I have been trying to figure out how to rotate videos with FFmpeg. I am working with iPhone videos taken in portrait mode. I know how to determine the current degrees of rotation using MediaInfo (excellent library, btw) but I'm stuck on FFmpeg now.
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Making git auto-commit
I'd like to use git to record all the changes to a file.
18 Answers
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The difference between sys.stdout.write and print?
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print is just a thin wrapper that formats the inputs (modifiable, but by default with a space between args and newline at the end) and calls the write function of a given object. By default this object is sys.stdout, but you can pass a file using the "chevron"...
SQLite with encryption/password protection
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SQLite has hooks built-in for encryption which are not used in the normal distribution, but here are a few implementations I know of:
SEE - The official implementation.
wxSQLite - A wxWidgets style C++ wrapper that also implements SQLite's encryption...
Read stream twice
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You can use org.apache.commons.io.IOUtils.copy to copy the contents of the InputStream to a byte array, and then repeatedly read from the byte array using a ByteArrayInputStream. E.g.:
ByteArrayOutputStream baos = new ByteArrayOutputStr...
What encoding/code page is cmd.exe using?
...ee question marks instead of gibberish. When you get gibberish,
there’s more going on than just font settings.
When programs use standard C-library I/O functions like printf, the
program’s output encoding must match the console’s output encoding, or
you will get gibberish. chcp shows and sets...