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Convert a row of a data frame to vector
... recommend unlist, which keeps the names.
unlist(df[1,])
a b c
1.0 2.0 2.6
is.vector(unlist(df[1,]))
[1] TRUE
If you don't want a named vector:
unname(unlist(df[1,]))
[1] 1.0 2.0 2.6
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Pull new updates from original GitHub repository into forked GitHub repository
...ited Nov 26 '12 at 23:07
Boris Däppen
1,10677 silver badges2020 bronze badges
answered Sep 17 '12 at 17:24
n0...
How to check Django version
...cutable command:
$ python -c "import django; print(django.get_version())"
2.0
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Complete Working Sample of the Gmail Three-Fragment Animation Scenario?
...opertyValuesHolder[1] = PropertyValuesHolder.ofFloat("Panel2Weight", 1.0f, 2.0f);
arrayOfPropertyValuesHolder[2] = PropertyValuesHolder.ofFloat("Panel3Weight", 2.0f, 0.0f);
ObjectAnimator localObjectAnimator = ObjectAnimator.ofPropertyValuesHolder(this, arrayOfPropertyValuesH...
log4j vs logback [closed]
...ld there are Facades (like Apache Commons Logging, slf4j or even the Log4j 2.0 API) and implementations (Log4j 1 + 2, java.util.logging, TinyLog, Logback).
Basically you should replace your selfmade wrapper with slf4j IF and only IF you are not happy with it for some reason. While Apache Commons Lo...
Android. WebView and loadData
...atin-1 and with ISO-8859-1, but saw still strange signs instead of ü, ö, ä. But I have another idea, I'll try to convert byte stream from server into string using right encoding. maybe, that'll help me
– Tima
Dec 7 '10 at 10:14
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Solving “Who owns the Zebra” programmatically?
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Here's a solution in Python based on constraint-programming:
from constraint import AllDifferentConstraint, InSetConstraint, Problem
# variables
colors = "blue red green white yellow".split()
nationalities = "Norwegian German Dane Swede English".split()
pet...
“open/close” SqlConnection or keep open?
...at least ;) Opening and closing costs time.
– David Mårtensson
Dec 14 '10 at 13:11
8
@David Mart...
Set operations (union, intersection) on Swift array?
... of two sets
firstSet.symmetricDifference(secondSet)// exclusiveOr
Swift 2.0 can calculate on array arguments:
set1.union(array2) // {"a", "b", "c", "d"}
set1.intersect(array2) // {"a", "b"}
set1.subtract(array2) // {"c"}
set1.exclusiveOr(array2) // {"c", "d"}
Swift 1.2+ can calcula...
How to reference constants in EL?
...d Apr 1 '16 at 9:32
Alexander Kjäll
3,90633 gold badges2626 silver badges5252 bronze badges
answered Jun 25 '13 at 15:18
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