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Can dplyr package be used for conditional mutating?
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dplyr now has a function case_when that offers a vectorised if. The syntax is a little strange compared to mosaic:::derivedFactor as you cannot access variables in the standard dplyr way, and need to declare the mode of NA, but it ...
git push says “everything up-to-date” even though I have local changes
...I am in a detached head state, merged my changes, committed my changes and now I want to push this to Master and can't - tells me "everything up to date". But I am following the instructions provided my Gitlab: Step 1: git fetch origin git checkout -b "nodeAPI" "origin/nodeAPI" Step 2. Review the ...
Making custom right-click context menus for my web-app
...k. Somehow they override the browser's behavior of drop-down menu, and I'm now sure exactly how they do it. I found a jQuery plugin that does this, but I'm still curious about a few things:
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jQuery - Get Width of Element when Not Visible (Display: None)
...ns and also returns the offset values.
/edit1: rewrote the function. it's now smaller and can be called directly on the object
/edit2: the function will now insert the clone just after the original element instead of the body, making it possible for the clone to maintain inherited dimensions.
$.f...
android splash screen sizes for ldpi,mdpi, hdpi, xhdpi displays ? - eg : 1024X768 pixels for ldpi
... reason you should increase +2 pixel your canvas size's width and height ( now your image sizes are 722 x 1282 ).
I've left the blank 1 pixel gap at every side as directed the below.
Changing the canvas size by using Photoshop:
- Open a splash screen png file in Photoshop
- Click onto the lock ...
How to create a library project in Android Studio and an application project that uses the library p
...which to use it. After this I add the module dependency (in Andr. Studio). Now I can use/edit the module in each project while keeping is in sync. Not sure if it is the right way to go, but for now it seems to work quite well! This works better than a local maven repo.
– Peter
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Passing command line arguments to R CMD BATCH
... R CMD BATCH my_script.R from a terminal to execute an R script. I am now at the point where I would like to pass an argument to the command, but am having some issues getting it working. If I do R CMD BATCH my_script.R blabla then blabla becomes the output file, rather than being interpre...
Can virtual functions have default parameters?
...nstead of trying to do this or understand what it does (if you have to ask now, the maintainer will have to ask or look it up a year from now).
Instead, create a public non-virtual function in the base class with default parameters. Then it calls a private or protected virtual function that has no ...
How can I enable zoom in on UIWebView which inside the UIScrollView?
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This is good, except now my page is being scaled down to fit within the view. I am creating an html page in code to display, and I want it to remain at the previous size, but allow my users to zoom in with pinch zooming
– D...
ImportError: No module named Crypto.Cipher
...install pycrypto
and reinstalling pycrypto:
sudo pip install pycrypto
Now it works as expected when I do something like:
from Crypto.Cipher import AES
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