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How to generate a number of most distinctive colors in R?

... I joined all qualitative palettes from RColorBrewer package. Qualitative palettes are supposed to provide X most distinctive colours each. Of course, mixing them joins into one palette also similar colours, but that's the best I can g...
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launch sms application with an intent

... To start launch the sms activity all you need is this: Intent sendIntent = new Intent(Intent.ACTION_VIEW); sendIntent.setData(Uri.parse("sms:")); You can add extras to populate your own message and such like this sendIntent.putExtra("sms_body", ...
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EF5: Cannot attach the file ‘{0}' as database '{1}'

...nd delete the database from the (localdb)\v11.0 subnode! There is essentially a local database retained of where the files should be, and if you want to delete the database files make sure you remove them from this explorer utility, not manually. ...
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Member initialization while using delegated constructor

...out the C++11 standard and i found this question which describes how to call your ctor from another ctor in the same class to avoid having a init method or the like. Now i'm trying the same thing with code that looks like this: ...
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SQL Server IIF vs CASE

...e query plan will be the same. It is, perhaps, "syntactical sugar" as initially implemented. CASE is portable across all SQL platforms whereas IIF is SQL SERVER 2012+ specific. share | improve this...
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Swapping column values in MySQL

...test s1, swap_test s2 SET s1.x=s1.y, s1.y=s2.x WHERE s1.id=s2.id; Essentially, the 1st table is the one getting updated and the 2nd one is used to pull the old data from. Note that this approach requires a primary key to be present. This is my test schema: CREATE TABLE `swap_test` ( `id` int(1...
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How do I control how Emacs makes backup files?

...tory as the file you're editing, but that is easy to change. You can make all backup files go into a directory by putting something like the following in your .emacs. (setq backup-directory-alist `(("." . "~/.saves"))) There are a number of arcane details associated with how Emacs might create y...
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How to make space between LinearLayout children?

I am programatically adding custom views to a vertical LinearLayout, and I would like there to be some space between the views. I have tried adding: setPadding(0, 1, 0, 1) to my CustomView constructor, but this doesn't seem to have any effect. Any advice? ...
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How to get the current time in Python

...gt; from datetime import datetime Then remove the leading datetime. from all of the above. share | improve this answer | follow | ...
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What are the differences between git branch, fork, fetch, merge, rebase and clone?

... Subversion and DVCSs like Git is that in Git, when you clone, you are actually copying the entire source repository, including all the history and branches. You now have a new repository on your machine and any commits you make go into that repository. Nobody will see any changes until you push tho...