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Relative frequencies / proportions with dplyr
...()) %>%
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 vignette:
When you group by multiple variables, each summary peels off one level of the grouping. That makes it ea...
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answered Nov 30 '12 at 6:33
CodesenCodesen
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RegEx to parse or validate Base64 data
... the following:
^(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=)?$
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answered May 26 '10 at 12:31
Delan AzabaniDelan Azabani
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Android: Why does long click also trigger a normal click?
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edited Mar 25 '11 at 3:41
answered Mar 25 '11 at 3:35
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edited Oct 11 '19 at 12:38
LinusGeffarth
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