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How do I replace NA values with zeros in an R dataframe?

...the complete results. If you are struggling with massive dataframes, data.table is the fastest option of all: 40% faster than the standard Base R approach. It also modifies the data in place, effectively allowing you to work with nearly twice as much of the data at once. A clustering of other he...
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How do I perform an insert and return inserted identity with Dapper?

... is simply: var id = connection.QuerySingle<int>( @" INSERT INTO [MyTable] ([Stuff]) VALUES (@Stuff); SELECT CAST(SCOPE_IDENTITY() as int)", new { Stuff = mystuff}); Note that on more recent versions of SQL Server you can use the OUTPUT clause: var id = connection.QuerySingle<int>( @...
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iOS 7 TableView like in Settings App on iPad

I want to have a group UITableView with the style same like the iPad Settings application Detail view for iOS 7 . 15 Ans...
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MySQL show current connection info

...7 min 16 sec Threads: 1 Questions: 21 Slow queries: 0 Opens: 33 Flush tables: 1 Open tables: 26 Queries per second avg: 0.48 -------------- mysql> share | improve this answer | ...
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How to add a footer to a UITableView in Storyboard

... You can just drag a view to the bottom area of the tableView. You'll see in the hierarchy that it will be a subview of the tableview. You can then drag subviews such as labels and buttons there, adjust the height, etc. ...
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What does SQL clause “GROUP BY 1” mean?

...d name, you may also group by ordinal, or position of the field within the table. 1 corresponds to the first field (regardless of name), 2 is the second, and so on. This is generally ill-advised if you're grouping on something specific, since the table/view structure may change. Additionally, it ma...
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MySQL Insert Where query

...TO Users(weight, desiredWeight) SELECT weight, desiredWeight FROM AnotherTable WHERE id = 1 share | improve this answer | follow | ...
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How can an html element fill out 100% of the remaining screen height, using css only?

... is where magic comes into picture - since we have 'min-height' on playing table, we are telling browser that <body> is superior over <html> because <body> holds the min-height. This in turn, allows <body> to override <html> because <html> had height already earli...
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Naming convention for unique constraint

...rimary key and foreign key have commonly used and obvious conventions ( PK_Table and FK_Table_ReferencedTable , respectively). The IX_Table_Column naming for indexes is also fairly standard. ...
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How can I edit a view using phpMyAdmin 3.2.4?

... In your database table list it should show View in Type column. To edit View: Click on your View in table list Click on Structure tab Click on Edit View under Check All Hope this help update: in PHPMyAdmin 4.x, it doesn't show View in ...