Category "zero"

ifelse is giving me NAs when I want 0s

I am trying to create a variable using ifelse, and would like the column to be 0 when the condition is not true, but they are showing up as NA. Any tips? df$z &

Declare a 0-Length String Array in VBA - Impossible?

Is it really not possible to declare a 0-length array in VBA? If I try this: Dim lStringArr(-1) As String I get a compile error saying range has no values. I

How to assign value to zero-length array defined by ctypes in Python3

Here I have a class defined like below, whose attribute data is a zero-length array. How to instantiate this class? class Frame(ctypes.Structure): _fields_

Prevent small negative numbers printing as "-0"

If I do the following in Objective-C: NSString *result = [NSString stringWithFormat:@"%1.1f", -0.01]; It will give result @"-0.0" Does anybody know how I ca