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Error: could not find function … in R
I am using R and tried some.function but I got following error message:
10 Answers
1...
Install go with brew, and running the gotour
... paste the export lines in .bash_profile, not in .bashrc, restart your mac and IntelliJ will find GOPATH (just tested, reboot needed)
– firepol
Jun 4 '15 at 4:53
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Should I hash the password before sending it to the server side?
... is a silver bullet, which it is not. It certainly helps greatly however, and should be used in any authenticated session.
There is really no need to know what an original password is. All that is required is a reliable way to generate (and reliably re-generate) an authentication "key" based on t...
设置用户默认权限 Umask命令详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...限计算实际上是二进制位的与操作，参考All About the umask and Permissions。
操作bar.tar
shell> tar xf bar.tar
这次有点不同，我们要运行两次tar命令。
第一次：以root身份运行tar命令，然后查看目录和文件的权限，分别是：
bar_dir：77...
How to insert an element after another element in JavaScript without using a library?
...arent element, that's fine, because referenceNode.nextSibling will be null and insertBefore handles that case by adding to the end of the list.
So:
function insertAfter(newNode, referenceNode) {
referenceNode.parentNode.insertBefore(newNode, referenceNode.nextSibling);
}
You can test it us...
TCP vs UDP on video stream
I just came home from my exam in network-programming, and one of the question they asked us was "If you are going to stream video, would you use TCP or UDP? Give an explanation for both stored video and live video-streams" . To this question they simply expected a short answer of TCP for stored vid...
ls command: how can I get a recursive full-path listing, one line per file?
...it wasn't the right answer to the question that you hoped to have written. And while i agree with your bigger point: "when the wise points to the moon, the fool looks at the finger" it is only fair that we minimize the impact of subjectiveness to evaluate correctness, specially when the criteria doe...
Bash Templating: How to build configuration files from templates with Bash?
I'm writing a script to automate creating configuration files for Apache and PHP for my own webserver. I don't want to use any GUIs like CPanel or ISPConfig.
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What is attr_accessor in Ruby?
I am having a hard time understanding attr_accessor in Ruby .
Can someone explain this to me?
19 Answers
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Does delete on a pointer to a subclass call the base class destructor?
...s a heap memory allocation for one of its fields. Class A is instantiated and stored as a pointer field in another class ( class B .
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