There seems to be a difference between levels and labels of a factor in R. Up to now, I always thought that levels were the 'real' name of factor levels, and labels were the names used for output (such as tables and plots). Obviously, this is not the case, as the following example shows: ...

I am writing a batch file to execute some other programs. In this case I need to prompt for a password. Do I have any way to mask the input text? I don't need to print ******* characters instead of input characters. Linux's Password prompt behavior (Print nothing while typing) is enough. ...

I'm trying to find a convenient way to initialise 'pod' C++ structs. Now, consider the following struct: 13 Answers ...

I'm populating a dropdown through the use of ng-options which is hooked to a controller that in turn is calling a service. Unfortunately the data coming in is a mess and I need to be able to sort it alphabetically. ...

How would you get only the first line of a file as a string with Python? 8 Answers 8 ...

I have been used Ctrl + Shift + F to correct indentation but I heard there is another shortcut to do that: Ctrl + I 4 An...

Situation: - There is a module in my project_folder called calendar - I would like to use the built-in Calendar class from the Python libraries - When I use from calendar import Calendar it complains because it's trying to load from my module. ...

I'm trying to write to a log file with Go. 11 Answers 11 ...

...it branch and was ready to commit my changes, so I made a commit with a useful commit message. I then absentmindedly made minor changes to the code that are not worth keeping. I now want to change branches, but git gives me, ...

Does C++ support ' finally ' blocks? 16 Answers 16 ...