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dplyr: “Error in n(): function should not be called directly”
.... I am expecting to see a new column n produced with the frequency of each combination. What am I missing? I triple checked that the package is loaded.
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Is there a print_r or var_dump equivalent in Ruby / Ruby on Rails?
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How to make a smooth image rotation in Android?
...="utf-8"?>
<linearInterpolator xmlns:android="http://schemas.android.com/apk/res/android" />
And add to your animation XML:
android:interpolator="@anim/linear_interpolator"
Special Note: If your rotate animation is inside a set, setting the interpolator does not seem to work. Making th...
Simulate airplane mode in iPhone Simulator
...ng networking connection isn't really the same. Also, some workplaces have computers that have real authentication problems that mean killing your network connection isn't always an option (as everything goes haywire).
– occulus
Feb 22 '11 at 9:23
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Deprecated warning for Rails 4 has_many with order
...d include? This: { order(:position), include(:track) } throws error on the comma.
– kakubei
Nov 15 '13 at 10:02
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Webstorm: “Cannot Resolve Directory”
...er.
From the Jetbrains documentation, a Resource Root enables WebStorm to complete relative paths to resources under the selected folder. This means that you should use Resource Root on a folder that holds all the resources you would like to refer to (e.g. styles, scripts, ...).
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Can I tell the Chrome script debugger to ignore jquery.js?
...ger
And in Chrome Canary using Experimental Dev tools.
http://www.divshot.com/blog/tips-and-tricks/ignoring-library-code-while-debugging-in-chrome/
Update. In Chrome v.75 there is a separabe tab for blackboxing.
Above works in stable Chrome build as well now.
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Git: How to reuse/retain commit messages after 'git reset'?
As Git user I regular come across the situation, that I need to rework one or more commits in a way which do not fit into --amend or rebase -i with fixup commits. Typically I would do something like
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Docker and securing passwords
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Definitely it is a concern. Dockerfiles are commonly checked in to repositories and shared with other people. An alternative is to provide any credentials (usernames, passwords, tokens, anything sensitive) as environment variables at runtime. This is possible via the -...
multiprocessing.Pool: When to use apply, apply_async or map?
...s performed in a separate process. Pool.apply blocks until the function is completed.
Pool.apply_async is also like Python's built-in apply, except that the call returns immediately instead of waiting for the result. An AsyncResult object is returned. You call its get() method to retrieve the resul...