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Annotating text on individual facet in ggplot2

...t;% gather("Vars","Data_1"), Data2 %>% gather("Vars","Data_2") ) %>% select(-Vars1) -> Data_combined Data_combined %>% group_by(Vars) %>% summarise(r=cor(Data_1,Data_2), r2=r^2, p=(pt(abs(r),nrow(.)-2)-pt(-abs(r),nrow(.)-2))) %>% mutate(rlabel=paste(...
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Why are Oracle table/column/index names limited to 30 characters?

...ine of code that goes something like l_table_name VARCHAR2(30); BEGIN SELECT table_name INTO l_table_name FROM dba_tables WHERE ... to suddenly break because the DBA 15 years ago used VARCHAR2(30) rather than DBA_TABLES.TABLE_NAME%TYPE in the script would cause massive revolt. I w...
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What is the difference between Strategy pattern and Dependency Injection?

...rn) is a particular software design pattern, whereby algorithms can be selected at runtime. The strategy pattern is intended to provide a means to define a family of algorithms, encapsulate each one as an object, and make them interchangeable. The strategy pattern lets the algorit...
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Intel HAXM installation error - This computer does not support Intel Virtualization Technology (VT-x

... is supported. Disable Hyper-V Type 'windows features' into start menu, select 'Turn Windows Features On or Off'. Unselect all Hyper-V related options, press OK, Reboot. This will break any Hyper-V VMs you have, including any Windows Phone emulators and anything else you have setup that requires ...
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Why can't a text column have a default value in MySQL?

... I try to recreate the table locally with the obvious default (based on a select of unique values for that column) and end up receiving the oh-so-useful BLOB/TEXT column can't have a default value. Again, not maintaining basic compatability across platforms is unacceptable and is a bug. How to ...
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Error when testing on iOS simulator: Couldn't register with the bootstrap server

...ur project target executable: Click on the project on the left-hand pane Select Build Settings in the middle pane Under 'Packaging' change 'Product Name' from $(TARGET_NAME) to $(TARGET_NAME).1 Easy! share | ...
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Visual Studio 64 bit?

...d click the install button, you will see that the initialization folder it selects automatically is C:\Program Files (x86)\Microsoft Visual Studio 14.0 As per my understanding, all 64-bit programs/applications goes to C:\Program Files and all 32-bit applications goes to C:\Program Files (x86) from ...
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What are naming conventions for MongoDB?

... singular (collections are plural) MongoDB states a nice example: To select a database to use, in the mongo shell, issue the use <db> statement, as in the following example: use myDB use myNewDB Content from: https://docs.mongodb.com/manual/core/databases-and-collections/#...
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XML parsing of a variable string in JavaScript

...at JQuery does not support XML namespaces. See zachleat.com/web/2008/05/10/selecting-xml-with-javascript – mikemaccana Jan 24 '11 at 14:58 10 ...
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What is NSZombie?

...ment. Instead of "Run" to start the app, use "Profile" and an instrument selector will come up. Select "Zombie", and the app will start running - do whatever causes your crash, an a dialog will pop up saying "Zombie Messaged". From there, click the small arrow in the dialog box. That will take ...