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How to elegantly ignore some return values of a MATLAB function?
...nth' return value from a function without having to create dummy variables for all n-1 return values before it?
8 Answers...
Array include any value from another array?
...
(cheeses & foods).empty?
As Marc-André Lafortune said in comments, & works in linear time while any? + include? will be quadratic. For larger sets of data, linear time will be faster. For small data sets, any? + include? may be faster as shown by Lee Jarvis' ans...
Is there a command to refresh environment variables from the command prompt in Windows?
...stem.CreateTextFile(filename, TRUE)
set oEnv=oShell.Environment("System")
for each sitem in oEnv
oFile.WriteLine("SET " & sitem)
next
path = oEnv("PATH")
set oEnv=oShell.Environment("User")
for each sitem in oEnv
oFile.WriteLine("SET " & sitem)
next
path = path & ";" & o...
Extract month and year from a zoo::yearmon object
...
Use the format() method for objects of class "yearmon". Here is your example date (properly created!)
date1 <- as.yearmon("Mar 2012", "%b %Y")
Then we can extract the date parts as required:
> format(date1, "%b") ## Month, ...
Visual Studio window which shows list of methods
... know if there is any shortcut to open this? It's sa annoying to use mouse for this.
– Mariusz Pawelski
Oct 10 '11 at 10:21
...
Win32 创建控件风格不是Win XP的解决方案 - C/C++ - 清泛网 - 专注C/C++及内核技术
...
还需要在资源文件中加一行：
//
1 RT_MANIFEST "TestCtrlStyle.manifest"
注意，有时候，加这样一句代码在资源文件中，链接时会出错：
1>Linking...
1>CVTRES : fatal error CVT1100: duplicate resource. type:MANIFEST, name:1...
How to convert a string or integer to binary in Ruby?
...you create integers 0..9 and math operators + - * / in to binary strings.
For example:
6 Answers
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Extract elements of list at odd positions
... will be:
2, 4, 6
Explanation
The [1::2] at the end is just a notation for list slicing. Usually it is in the following form:
some_list[start:stop:step]
If we omitted start, the default (0) would be used. So the first element (at position 0, because the indexes are 0-based) would be selected....
What can I do to resolve a “Row not found or changed” Exception in LINQ to SQL on a SQL Server Compa
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Thats nasty, but simple:
Check if the data types for all fields in the O/R-Designer match the data types in your SQL table.
Double check for nullable! A column should be either nullable in both the O/R-Designer and SQL, or not nullable in both.
For example, a NVARCHAR colu...
boost多索引容器multi_index_container实战 - C/C++ - 清泛网 - 专注C/C++及内核技术
...熟悉lambda表达式，请参考boost的lambda库相关资料
std::for_each( stu.stu_couselist.begin(), stu.stu_couselist.end(), std::cout << boost::lambda::_1 );
return os;
}
bool operator<( const Course& lhs, const Course& rhs )
{
return lhs.course_num < rhs....