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filter for complete cases in data.frame using dplyr (case-wise deletion)
...fast.
– user2503795
Mar 13 '14 at 8:38
1
This works now as well: df %>% filter(complete.cases(...
Check time difference in Javascript
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Salman ASalman A
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What is a good reason to use SQL views?
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answered Apr 21 '10 at 4:38
DVKDVK
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What are attributes in .NET?
...what they're good for... there are almost limitless uses for them.
http://www.codeproject.com/KB/cs/dotnetattributes.aspx
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What is function overloading and overriding in php?
... :)
– Sasha Chedygov
Jun 8 '10 at 4:38
6
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Only read selected columns
...31 -39 -25 -15 -30 -27 -21 -25
2011 -21 -27 -2 -6 -10 -32 -13 -12 -27 -30 -38 -29
and was created by using
write.table(dat, file = "data.txt", row.names = FALSE)
where dat is
dat <- structure(list(Year = 2009:2011, Jan = c(-41L, -41L, -21L), Feb = c(-27L,
-27L, -27L), Mar = c(-25L, -25L, -...
How can I clone an SQL Server database on the same server in SQL Server 2008 Express?
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388
Install Microsoft SQL Management Studio, which you can download for free from Microsoft's web...
How to print a int64_t type in C
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438
For int64_t type:
#include <inttypes.h>
int64_t t;
printf("%" PRId64 "\n", t);
for uin...
Is Safari on iOS 6 caching $.ajax results?
...currentTime = new Date();
var n = currentTime.getTime();
postUrl = "http://www.example.com/test.php?nocache="+n;
$.post(postUrl, callbackFunction);
I wasted a few hours figuring this out. It would have been nice of Apple to notify developers of this caching issue.
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UIButton inside a view that has a UITapGestureRecognizer
...te property.
– Till
May 10 '11 at 1:38
Can this answer be generalized to handle all cases where there is an IBAction i...