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How to split/partition a dataset into training and test datasets for, e.g., cross validation?

...escribes, you can just use the following instructions: from sklearn.model_selection import train_test_split data, labels = np.arange(10).reshape((5, 2)), range(5) data_train, data_test, labels_train, labels_test = train_test_split(data, labels, test_size=0.20, random_state=42) This way you can ...
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Entity Framework: There is already an open DataReader associated with this Command

...al commands executed on single connection (or single command with multiple selects) while next DataReader is executed before first one has completed the reading. The only way to avoid the exception is to allow multiple nested DataReaders = turn on MultipleActiveResultSets. Another scenario when this...
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What specific productivity gains do Vim/Emacs provide over GUI text editors?

... Yeah, the mouse can be a timesaver for selecting areas of text, or moving the cursor to a specific spot in a large amount of text. Otherwise, it's a waste. – T.E.D. Jul 7 '09 at 14:27 ...
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iOS 7 TableView like in Settings App on iPad

...)cell forRowAtIndexPath:(NSIndexPath *)indexPath { if ([cell respondsToSelector:@selector(tintColor)]) { if (tableView == self.tableView) { CGFloat cornerRadius = 5.f; cell.backgroundColor = UIColor.clearColor; CAShapeLayer *layer = [[CAShapeLayer allo...
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Get Folder Size from Windows Command Line

...mmand "$fso = new-object -com Scripting.FileSystemObject; gci -Directory | select @{l='Size'; e={$fso.GetFolder($_.FullName).Size}},FullName | sort Size -Descending | ft @{l='Size [MB]'; e={'{0:N2} ' -f ($_.Size / 1MB)}},FullName" Same but Powershell only: $fso = new-object -com Scripting.File...
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Import Maven dependencies in IntelliJ IDEA

... When importing the project, select pom.xml instead of the project directory. It should work. share | improve this answer | foll...
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Copy to Output Directory copies folder structure but only want to copy files

...UnchangedFiles="true" /> </Target> This allows you to select "RootContent" as the Build Action in the Properties window, and all can be accessed via the GUI. A more complete explanation: the "AvailableItemName" option basically creates a new named-list that you can assign items ...
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How to connect to LocalDB in Visual Studio Server Explorer?

...11.0 Copy the Instance pipe name that starts with np:\... In Visual Studio select TOOLS > Connect to Database... For Server Name enter (localdb)\v11.0. If it didn't work, use the Instance pipe name that you copied earlier. You can also use this to connect with SQL Management Studio. Select the da...
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Conditional formatting based on another cell's value

...able to do that with scripting. I reckon I've never seen a dynamic mean to select specific colors or an existing format through normal usage. EDIT: to start scripting go to tools > script editor and start coding. But that's a whole new level in using sheets ;-) – Romain Vinc...
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Check if database exists in PostgreSQL using shell

...e vertical pipe | character (escaped from the shell with a backslash), and selects field 1. This leaves: my_db postgres template0 template1 grep -w matches whole words, and so won't match if you are searching for temp in this scenario. The -q option...