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How can I check if a key exists in a dictionary? [duplicate]
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3 Answers
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Order discrete x scale by frequency/value
...swer, reorder is the idiomatic way of reordering factor levels.
mtcars$cyl3 <- with(mtcars, reorder(cyl, cyl, function(x) -length(x)))
ggplot(mtcars, aes(cyl3)) + geom_bar()
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Can't connect to local MySQL server through socket '/var/mysql/mysql.sock' (38)
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edited Aug 31 '12 at 9:35
Mateng
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Objective-C Runtime: best way to check if class conforms to protocol?
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309
According to the docs,
[MyClass conformsToProtocol:@protocol(MyProtocol)];
should work.
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Intercepting links from the browser to open my Android app
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Help with C# generics error - “The type 'T' must be a non-nullable value type”
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edited Sep 23 '19 at 7:47
Liam
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convert from Color to brush
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139
This is for Color to Brush....
you can't convert it, you have to make a new brush....
SolidCo...
Using [UIColor colorWithRed:green:blue:alpha:] doesn't work with UITableView seperatorColor?
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edited Apr 12 '11 at 22:32
answered Apr 12 '11 at 22:12
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Load HTML file into WebView
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351
The easiest way would probably be to put your web resources into the assets folder then call:
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