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Stacking DIVs on top of each other?
...a2pro
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answered Dec 15 '09 at 19:14
MattMatt
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Remove duplicated rows using dplyr
...
x = sample(0:1, 10, replace = T),
y = sample(0:1, 10, replace = T),
z = 1:10
)
One approach would be to group, and then only keep the first row:
df %>% group_by(x, y) %>% filter(row_number(z) == 1)
## Source: local data frame [3 x 3]
## Groups: x, y
##
## x y z
## 1 0 1 1
## 2 1 ...
What parameters should I use in a Google Maps URL to go to a lat-lon?
...ena
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1
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Compute a confidence interval from sample data
...margo
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answered Feb 22 '13 at 22:18
shasanshasan
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What are the rules for the “…” token in the context of variadic templates?
...(args)
m( y(args...) ); //pattern = args (as argument to y())
n( z<T>(args)... ); //pattern = z<T>(args)
}
Now if I call this function passing T as {int, char, short}, then each of the function call is expanded as:
g( arg0, arg1, arg2 );
h( x(arg0), x(arg1), x(arg2...
Date query with ISODate in mongodb doesn't seem to work
...with $date like below:
db.foo.find({dt: {"$date": "2012-01-01T15:00:00.000Z"}})
you'll get error:
error: { "$err" : "invalid operator: $date", "code" : 10068 }
Try this:
db.mycollection.find({
"dt" : {"$gte": new Date("2013-10-01T00:00:00.000Z")}
})
or (following comments by @user380504...
How to save a git commit message from windows cmd?
...ative that stdcall in the comments mentions is:
Press Escape
Press shift+Z shift+Z (capital Z twice).
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How do I remove code duplication between similar const and non-const member functions?
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answered Sep 23 '08 at 21:24
jwfearnjwfearn
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Create a tar.xz in one command
I am trying to create a .tar.xz compressed archive in one command. What is the specific syntax for that?
5 Answers
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ISO time (ISO 8601) in Python
...string while preserving the fact that it was created in the Eastern Time Zone (ET) .
13 Answers
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