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How do I replace NA values with zeros in an R dataframe?
...c(NA, 1:10), 100, replace = TRUE), 10)
> d <- as.data.frame(m)
V1 V2 V3 V4 V5 V6 V7 V8 V9 V10
1 4 3 NA 3 7 6 6 10 6 5
2 9 8 9 5 10 NA 2 1 7 2
3 1 1 6 3 6 NA 1 4 1 6
4 NA 4 NA 7 10 2 NA 4 1 8
5 1 2 4 NA 2 6 2 6 7 4
6 NA 3 NA NA 10 2 1 10 ...
test a file upload using rspec - rails
...nswer, because it is correct. Thanks man!
– Emil Ahlbäck
Mar 18 '12 at 18:30
30
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How to make an Android device vibrate?
...el 26. Use vibrate(VibrationEffect) instead.
– Timo Bähr
Jan 23 '18 at 15:05
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show 1 more comment
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How to retrieve the hash for the current commit in Git?
... object name. Otherwise barf and abort.
– Linus Unnebäck
Jul 24 '11 at 17:50
661
git rev-parse -...
A python class that acts like dict
...dited Oct 19 '12 at 15:21
Kim Gräsman
6,98611 gold badge2424 silver badges4040 bronze badges
answered Oct 25 '10 at 13:39
...
Completely cancel a rebase
...Liu
In a03b55530a ("merge: teach --autostash option", 2020-04-07, Git v2.27.0 -- merge listed in batch #5), the --autostash option was introduced for git merge.
(See "Can “git pull” automatically stash and pop pending changes?")
Notably, when git merge --quit is run with an autostash...
Does Flask support regular expressions in its URL routing?
...ar 22 '15 at 17:58
Jouni K. Seppänen
33.9k55 gold badges6767 silver badges9696 bronze badges
answered May 3 '11 at 13:33
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Technically what is the main difference between Oracle JDK and OpenJDK? [duplicate]
...ce. Oracle JDK is more stable than OpenJDK.
OpenJDK is released under GPL v2 license whereas Oracle JDK is licensed under Oracle Binary Code License Agreement.
OpenJDK and Oracle JDK have almost the same code, but Oracle JDK has more classes and some bugs fixed.
So if you want to develop enterpri...
undefined method `source_index' for Gem:Module (NoMethodError)
...ates except critical security patches, this will never get fixed. RubyGems v2.0 finally removed that method. Downgrade to any rubygems version prior to 2.0.0, like 1.8.25 to get the functionality back for now. You can get a compatible version using gem update --system 1.8.25.
As a very important as...
对外网用户的squid代理+认证 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... install
3、下载并安装squid
从http://www.squid-cache.org/Versions/v2/2.6/下载squid-2.6.STABLE16.tar.gz
并通过FTP放置服务器目录中/home/funpower，然后开始解压安装：
jiulongproxynew# cd /home/funpower
jiulongproxynew# tar zxvf squid-2.6.STABLE16.tar.gz
jiulongproxy...