Kirat[ad_1] Let’s say your data.frame is called dd. If you want to see the total number of weather delays for each month across all years you can do delay <- aggregate(WeatherDelay~Month, dd, sum) delay[order(-delay$WeatherDelay),] 1 [ad_2] solved finding the most frequent item using bigmemory techniques and parallel computing? [closed]
[ad_1] Dude. Perhaps you should consider making use of named parameters. What is the “Named Parameter Idiom” http://www.parashift.com/c++-faq/named-parameter-idiom.html Or if you use Boost, consider using the following. The Boost Parameter Library http://www.boost.org/doc/libs/1_55_0/libs/parameter/doc/html/index.html Or, if you do not like that, a single parameter that is a map of a string to a union (or any, also … Read more
[ad_1] For a given domain, e.g. yahoo.com you can google-search site:yahoo.com; at the top of the results it says “About 141,000,000 results (0.41 seconds)”. This includes subdomains like www.yahoo.com, and it.yahoo.com. Note also that some websites generate pages on the fly, so they might, in fact, have infinite “pages”. A given page will be calculated … Read more
[ad_1] It simply means: Return the property file as InputStream from the ClassLoader the current thread of my application is running from (in loose english). 4 [ad_2] solved Usage of Thread.currentThread().getContextClassLoader().getResourceAsStream(“system.properties”) [closed]
[ad_1] You have not initialized MyDataTable by a data after instantiation, you have filled in data set but not a data table. So just try out MyDataSet.Tables[0] instead of MyDataTable.AsEnumerable() // DataSet filled in but data table still empty! MyDataAdapter.Fill(MyDataSet,”STUFF”); 1 [ad_2] solved Reading A Fixed Format Text File – Part 3
[ad_1] What you’ve quoted is not valid JSON, and even with a minimal modification, it wouldn’t be an array. I suspect you just mean “object” (e.g., what PHP calls an associative array; really it’s a map). What you’ve quoted looks like part of a JSON object definition, but it’s missing the initial {. jQuery offers … Read more
[ad_1] Are you trying to assign that to an Int? Because if so, 13.5 will be truncated to exactly 13. Make sure all your variables are floating point numbers, not integers. 0 [ad_2] solved How to do 10.1 + 3.4 ? (But the result is 13) [closed]
[ad_1] Here is a simple solution: String s = “Hello stack over flow”; List< String > words = Arrays.asList( s.split( ” ” ) ); Collections.reverse( words ); String reversed = words.get( 0 ); for ( int i = 1; i < words.size(); ++i ) { reversed += ” ” + words.get( i ); } I … Read more
[ad_1] You don’t need Boost: std::string str = “data/lib/blahblah.lua”; std::string filename(str, str.find_last_of(“https://stackoverflow.com/”)+1); 0 [ad_2] solved Making filename remain from path in boost [closed]
[ad_1] Does ASP.NET MVC, or any other modern web development framework provide ONE single web development environment? [closed] [ad_2] solved Does ASP.NET MVC, or any other modern web development framework provide ONE single web development environment? [closed]
[ad_1] You have to set “do not backup” attribute to let iphone manage all your resources downloaded in document directory. Place below code in your didFinishLaunchingWithOptions method of appdelegate – NSArray *docPath = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentDir = [docPath objectAtIndex:0]; NSURL *pathurl=[NSURL fileURLWithPath:documentDir]; const char* filePath = [[URL path] fileSystemRepresentation]; const char* attrName = … Read more
[ad_1] I’ll give a very simple example that should get you started. The values are accessible via (most likely) $_POST[‘input_name’]. Without using Post/Redirect/Get, you can just get the input values like: $input_name = isset($_POST[‘input_name’]) ? $_POST[‘input_name’] : ”; Then later you’ll display it in the form like: echo ‘<input name=”input_name” value=”‘ . htmlspecialchars($input_name, ENT_QUOTES) . … Read more
[ad_1] Statement (long)0.75 will return 0 (converting double to long will take greatest integer value, that is lower that converting double). So you have 0 * 9223372036854775807 which is hopefully 0. By the way long is alias for Int64, which means they are the same underlying types, so by (long)Int64.MaxValue you casting long to long … Read more
[ad_1] If you want to support iOS 4.3 or 5 then turn off the Autolayout.Then you have to set the UIViewAutoresizing correctly either in code or interface builder. With the autoresizingMask on UIView you can make the view stick to aside and grow with the size of the superview. Another way is you can to … Read more
[ad_1] very vague question, and you may want to try a simple Google search next time. Check this out though, may be what you’re looking for:http://www.androidviews.net/2012/12/cardsui/ 2 [ad_2] solved how to implement a card UI like chrome on Android? [closed]