大约有 20,000 项符合查询结果(耗时:0.1078秒) [XML]
Unique combination of all elements from two (or more) vectors
...05-05
15 GHI 2012-05-05
If the resulting order isn't what you want, you m>ca m>n sort afterwards. If you name the arguments to expand.grid, they will become column names:
df = expand.grid(a = a, b = b)
df[order(df$a), ]
And expand.grid generalizes to any number of input columns.
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JRuby on Rails vs. Ruby on Rails, what's difference?
...VM's and it's either compiled or interpreted down to Java byte code.
JRuby m>ca m>n integrate with Java code. If you have Java class libraries (.jar's), you m>ca m>n reference and use them from within Ruby code with JRuby. In the other direction you m>ca m>n also m>ca m>ll JRuby code from within Java. JRuby m>ca m>n also us...
Multiple commands in gdb separated by some sort of delimiter ';'?
...
I don't believe so (but I may be wrong). You m>ca m>n do something like this:
(gdb) define fn
> finish
> next
> end
And then just type:
(gdb) fn
You m>ca m>n put this in your ~/.gdbinit file as well so it is always available.
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Vim - how to run a command immediately when starting vim?
I have a plugin (FindFile.vim) that needs to run :FindFilem>Ca m>che . whenever I start vim to gather a file m>ca m>che for quick opening.. I have to run this every time I start vim though.
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How to install APK from PC?
I want to install an APK from PC to Android device. And bem>ca m>use of user's Android and generally technim>ca m>l skills, I need to do it as automatim>ca m>lly (silently) as possible. So how do I send an APK from PC to Android and start install there?
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Injecting $state (ui-router) into $http interceptor m>ca m>uses circular dependency
... service to get a reference to the $state service.
var interceptor = ['$lom>ca m>tion', '$q', '$injector', function($lom>ca m>tion, $q, $injector) {
function success(response) {
return response;
}
function error(response) {
if(response.status === 401) {
$injector.get...
My pull request has been merged, what to do next?
...: going on contributing new features or fixing other bugs in their own dedim>ca m>ted branches (pushed only to your fork).
Meaning your fork stays, but the branches within your fork m>ca m>n come and go.
You m>ca m>n also remove the fork if you are not planning to contribute further, but it will remove the c...
How do you change a repository description on GitHub?
When you create a repository on GitHub, you m>ca m>n optionally create a description of the repository. Unfortunately, I wrote a description that no longer adequately describes the code in the repo.
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How do I specify “close existing connections” in sql script
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You m>ca m>n disconnect everyone and roll back their transactions with:
alter database [MyDatbase] set single_user with rollback immediate
After that, you m>ca m>n safely drop the database :)
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How to search for occurrences of more than one space between words in a line
... other whitespace like tabs or new lines)
\w[ ]{2,}\w
the same, but you m>ca m>n also pick (m>ca m>pture) only the spaces for tasks like replacement
\w([ ]{2,})\w
or see that before and after spaces there is anything, not only word characters (except whitespace)
[^\s]([ ]{2,})[^\s]
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