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How to split data into training/testing sets using sample function
I've just started using R and I'm not sure how to incorporate my dataset with the following sample code:
23 Answers
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MySQL - Rows to Columns
...ed explanation of the steps to take to solve this problem. I apologize if it's too long.
I'll start out with the base you've given and use it to define a couple of terms that I'll use for the rest of this post. This will be the base table:
select * from history;
+--------+----------+---------...
How to find the statistical mode?
...internal storage mode of the object, not the value that occurs the most in its argument. But is there is a standard library function that implements the statistical mode for a vector (or list)?
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How do I get an object's unqualified (short) class name?
How do I check the class of an object within the PHP name spaced environment without specifying the full namespaced class.
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Why '&&' and not '&'?
...p; and || are preferred over & and | because the former are short-circuited, meaning that the evaluation is canceled as soon as the result is clear.
Example:
if(CanExecute() && CanSave())
{
}
If CanExecute returns false, the complete expression will be false, regardless of the retu...
How to import a single table in to mysql database using command line
... using command line, but now my pain area is how to import a single table with its data to the existing database using command line.
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Can you use if/else conditions in CSS?
I would like to use conditions in my CSS.
16 Answers
16
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How do I truncate a .NET string?
I would like to truncate a string such that its length is not longer than a given value. I am writing to a database table and want to ensure that the values I write meet the constraint of the column's datatype.
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How do you get the length of a string?
...follow
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edited May 22 '19 at 12:35
answered Jun 25 '09 at 14:00
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Trying to git pull with error: cannot open .git/FETCH_HEAD: Permission denied
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It seems like the first one isn't working because your user doesn't have the permissions for changing that directory, and the second because your root user doesn't have the right SSH keys for accessing that git repository.
D...