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Xcode 4 and Core Data: How to enable SQL Debugging
... SQL logging for iOS Core Data development. The given example is for Xcode 3 and it's just not clear to me how to enable this in Xcode 4.
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How to work around the stricter Java 8 Javadoc when using Maven
...Just add that to your POM and you're good to go.
For maven-javadoc-plugin 3.0.0 users:
Replace
<additionalparam>-Xdoclint:none</additionalparam>
by
<doclint>none</doclint>
Thanks @banterCZ!
share
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How to convert a data frame column to numeric type?
...ac num
1 a 1 1 a 1
2 b 2 2 b 2
3 c 3 3 c 3
4 d 4 4 d 4
5 e 5 5 e 5
and let us run:
> sapply(d, mode)
char fake_char fac char_fac num
"character" "character...
how does multiplication differ for NumPy Matrix vs Array classes?
...find it more trouble than it's worth, though.
For arrays (prior to Python 3.5), use dot instead of matrixmultiply.
E.g.
import numpy as np
x = np.arange(9).reshape((3,3))
y = np.arange(3)
print np.dot(x,y)
Or in newer versions of numpy, simply use x.dot(y)
Personally, I find it much more read...
Not class selector in jQuery
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answered Jan 6 '11 at 10:53
lonesomedaylonesomeday
207k4545 gold badges296296 silver badges306306 bronze badges
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Entity Framework Join 3 Tables
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answered Jan 10 '14 at 18:30
MarcinJuraszekMarcinJuraszek
116k1313 gold badges164164 silver badges235235 bronze badges
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In git, is there a way to show untracked stashed files without applying the stash?
...ut is pretty obvious from The commit which introduced the -u feature, 787513..., and the way the rest of the documentation for git-stash phrases things... or just by doing git log --graph stash@{0})
You can view just the "untracked" portion of the stash via:
git show stash@{0}^3
or, just the "un...
The Ruby %r{ } expression
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Matthew
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answered Sep 12 '12 at 9:10
EurekaEureka
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Remove duplicated rows using dplyr
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139
Note: dplyr now contains the distinct function for this purpose.
Original answer below:
lib...
How can I specify working directory for popen
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answered Nov 6 '09 at 3:10
Mark RushakoffMark Rushakoff
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