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Omit rows containing specific column of NA
...thusly:
DF <- data.frame(x = c(1, 2, 3), y = c(0, 10, NA), z=c(NA, 33, 22))
completeFun <- function(data, desiredCols) {
completeVec <- complete.cases(data[, desiredCols])
return(data[completeVec, ])
}
completeFun(DF, "y")
# x y z
# 1 1 0 NA
# 2 2 10 33
completeFun(DF, c("y", "...
Fastest way to check a string contain another substring in JavaScript?
...any repeating patterns.
– Byson
Dec 22 '14 at 15:04
1
...
Finding the index of elements based on a condition using python list comprehension
...
22
For me it works well:
>>> import numpy as np
>>> a = np.array([1, 2, 3, 1, 2...
How to reduce iOS AVPlayer start delay
...at?
– Bernt Habermeier
Sep 9 '12 at 22:00
Nope, sorry. As I said, I'm not an expert on either AV or Core Media. Just r...
What are bitwise shift (bit-shift) operators and how do they work?
...758,096,384 << 1):
11100000 00000000 00000000 00000000
results in 3,221,225,472:
11000000 00000000 00000000 00000000
The digit that gets shifted "off the end" is lost. It does not wrap around.
Logical right shift (>>>)
A logical right shift is the converse to the left shift. Rath...
Is there a printf converter to print in binary format?
...
answered Jul 8 '10 at 22:07
William WhyteWilliam Whyte
3,35322 gold badges1616 silver badges1616 bronze badges
...
C# - Attribute to Skip over a Method while Stepping in Debug Mode
...
answered Sep 22 '11 at 13:36
BenBen
36944 silver badges44 bronze badges
...
Is there a method to generate a UUID with go language
.../second.
– Jay Taylor
Aug 25 '13 at 22:35
12
...
OS X Terminal Colors [closed]
... LS_COLORS statement
– bobobobo
Apr 22 '13 at 18:23
17
If you want the same colors that Linux use...
Set value of hidden input with jquery
...
gzverigzveri
33133 silver badges22 bronze badges
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