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map function for objects (instead of arrays)
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Group by multiple columns in dplyr, using string vector input
...e so:
data = data.frame(
asihckhdoydkhxiydfgfTgdsx = sample(LETTERS[1:3], 100, replace=TRUE),
a30mvxigxkghc5cdsvxvyv0ja = sample(LETTERS[1:3], 100, replace=TRUE),
value = rnorm(100)
)
# get the columns we want to average within
columns = names(data)[-3]
library(dplyr)
df1 <- data %...
HTTP 404 Page Not Found in Web Api hosted in IIS 7.5
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Find an element in a list of tuples
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answered Feb 3 '10 at 12:10
Nadia AlramliNadia Alramli
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How to check if object (variable) is defined in R?
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Dirk EddelbuettelDirk Eddelbuettel
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Check if two lists are equal [duplicate]
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How do I convert a String object into a Hash object?
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Error when testing on iOS simulator: Couldn't register with the bootstrap server
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Grep characters before and after match?
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3 characters before and 4 characters after
$> echo "some123_string_and_another" | grep -o -P '.{0,3}string.{0,4}'
23_string_and
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Handling applicationDidBecomeActive - “How can a view controller respond to the app becoming Active?
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305
Any class in your application can become an "observer" for different notifications in the appl...