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Is there an R function for finding the index of an element in a vector?

In R, I have an element x and a vector v . I want to find the first index of an element in v that is equal to x . I know that one way to do this is: which(x == v)[[1]] , but that seems excessively inefficient. Is there a more direct way to do it? ...
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How to copy commits from one branch to another?

...\ x - x - x (wss) So all you have to do is git checkout v2.1 and git merge wss. If for some reason you really can't do this, and you can't use git rebase to move your wss branch to the right place, the command to grab a single commit from somewhere and apply it elsewhere is git cherry-...
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Using an RDBMS as event sourcing storage

...ashioned state-based persistence). Therefore I wouldn't recommend option 1 and 2 at all. Below is the schema as used in Ncqrs. As you can see, the table "Events" stores the related data as a CLOB (i.e. JSON or XML). This corresponds to your option 3 (Only that there is no "ProductEvents" table beca...
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Utility classes are evil? [closed]

... good object-oriented design, most classes should represent a single thing and all of its attributes and operations. If you are operating on a thing, that method should probably be a member of that thing. However, there are times when you can use utility classes to group a number of methods togethe...
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Iterate over model instance field names and values in template

... instance's field values, along with their names. Think of it as just a standard output of the values of that instance in table format, with the field name (verbose_name specifically if specified on the field) in the first column and the value of that field in the second column. ...
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Which data type for latitude and longitude?

I am newbie to PostgreSQL and PostGIS. I want to store latitude and longitude values in PostgreSQL 9.1.1 database table. I will calculate distance between two points, find nearer points by using this location values. ...
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How can I take more control in ASP.NET?

...ls. It's easier to work with for your purposes. Just use regular HTML tags and put runat="server" and give them an ID. Then you can access them programmatically and code without a ViewState. The only downside is that you won't have access to many of the "helpful" ASP.NET server controls like GridV...
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MySQL Fire Trigger for both Insert and Update

Is it possible to fire a mysql trigger for both the insert and update events of a table? 3 Answers ...
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How do you clear a slice in Go?

...- memory not used, but potentially reachable (after re-slicing of 'slice') and thus not garbage "collectable". share | improve this answer | follow | ...
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Environment variables in Mac OS X

...ete answer . Having to set the path or variable in two places (one for GUI and one for shell) is lame. 9 Answers ...