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Relative frequencies / proportions with dplyr
...
Try this:
mtcars %>%
group_by(am, gear) %>%
summarise(n = n()) %>%
mutate(freq = n / sum(n))
# am gear n freq
# 1 0 3 15 0.7894737
# 2 0 4 4 0.2105263
# 3 1 4 8 0.6153846
# 4 1 5 5 0.3846154
From the dplyr vigne...
Adding values to a C# array
...he first bit of code not be anything since value is not defined anywhere. -_-
– EasyBB
Sep 10 '15 at 3:47
1
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Insert spaces between words on a camel-cased token [duplicate]
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Will that create "U_S_A_" (spaces replaced by underscores) from "USA"? That is, will it append a trailing space?
– Jim Mischel
Apr 26 '11 at 21:56
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VBA - how to conditionally skip a for loop iteration
... that you are able not use the GoTo.
If 6 - ((Int_height(Int_Column - 1) - 1) + Int_direction(e, 1)) = 7 Or (Int_Column - 1) + Int_direction(e, 0) = -1 Or (Int_Column - 1) + Int_direction(e, 0) = 7 Then
Else
If Grid((Int_Column - 1) + Int...
How can I force a long string without any blank to be wrapped?
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TIL there's a -hp- prefix!
– i336_
Sep 20 at 13:30
add a comment
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Creating and playing a sound in swift
...member to run it this way do { (player object) } catch _ { } or your will get a bug! :)
– ParisNakitaKejser
Jun 26 '15 at 20:02
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XML serialization in Java? [closed]
...t's right, JAXB is definitely the best option!
– ivan_ivanovich_ivanoff
Apr 9 '09 at 16:55
1
JAXB...
How to sort my paws?
...with the last impact here. It's not too hard to add it, though.)
def group_paws(data_slices, time):
# Sort slices by initial contact time
data_slices.sort(key=lambda s: s[-1].start)
# Get the centroid for each paw impact...
paw_coords = []
for x,y,z in data_slices:
p...
Does a finally block always run?
...led. Is there a catch that I am missing? download.oracle.com/docs/cd/E17476_01/javase/1.5.0/docs/guide/…
– spurserh
Jul 18 '10 at 14:40
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How can I check if a file exists in Perl?
...mething exists at given path using the -e file-test operator.
print "$base_path exists!\n" if -e $base_path;
However, this test is probably broader than you intend. The code above will generate output if a plain file exists at that path, but it will also fire for a directory, a named pipe, a syml...