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filter for complete cases in data.frame using dplyr (case-wise deletion)
... %>% filter(complete.cases(.))
or this:
library(tidyr)
df %>% drop_na
If you want to filter based on one variable's missingness, use a conditional:
df %>% filter(!is.na(x1))
or
df %>% drop_na(x1)
Other answers indicate that of the solutions above na.omit is much slower but tha...
Get current controller in view
I have a View - _Edit which lives in News M/V/C .
7 Answers
7
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how to use ng-option to set default value of select element
...arty</option>
<option ng-repeat="item in partyName" value="{{item._id}}" ng-selected="obj.partyname == item.partyname">{{item.partyname}}
</option>
</select>
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UITextField - capture return button event
...
Swift version using UITextFieldDelegate :
func textFieldShouldReturn(_ textField: UITextField) -> Bool {
resignFirstResponder()
return false
}
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How to express a One-To-Many relationship in Django
...s having a generic number? or an unemployed dude?
– j_syk
Aug 3 '11 at 23:08
1
@j_syk good point ...
Python List vs. Array - when to use?
...or data that could be represented with simple C types (e.g. float or uint64_t).
The array.array type, on the other hand, is just a thin wrapper on C arrays. It can hold only homogeneous data (that is to say, all of the same type) and so it uses only sizeof(one object) * length bytes of memory. Mos...
R cannot be resolved - Android error
... world' example does not compile. Fix it google!
– CF_Maintainer
Mar 17 '13 at 17:28
5
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Why is it not possible to extend annotations in Java?
...nnotation belongs to a category?
Try this:
@Target(ElementType.ANNOTATION_TYPE)
public @interface Category {
String category();
}
@Category(category="validator")
public @interface MyFooBarValidator {
}
As you can see, you can easily group and categorize annotations without undue pain using...
MySQL Error 1215: Cannot add foreign key constraint
...
I'm guessing that Clients.Case_Number and/or Staff.Emp_ID are not exactly the same data type as Clients_has_Staff.Clients_Case_Number and Clients_has_Staff.Staff_Emp_ID.
Perhaps the columns in the parent tables are INT UNSIGNED?
They need to be exactly ...
How do you implement a private setter when using an interface?
...Foo { get; private set; } // private
public int Foo
{
get { return _foo; } // no setter
}
public void Poop(); // this member also not part of interface
Setter is not part of interface, so it cannot be called via your interface:
IBar bar = new Bar();
bar.Foo = 42; // will not work thu...