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Regex group capture in R with multiple capture-groups
In R, is it possible to extract group capture from a regular expression match? As far as I can tell, none of grep , grepl , regexpr , gregexpr , sub , or gsub return the group captures.
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How to verify if a file exists in a batch file?
I have to create a .BAT file that does this:
3 Answers
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Function to Calculate Median in SQL Server
According to MSDN , Median is not available as an aggregate function in Transact-SQL. However, I would like to find out whether it is possible to create this functionality (using the Create Aggregate function, user defined function, or some other method).
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Use Mockito to mock some methods but not others
Is there any way, using Mockito, to mock some methods in a class, but not others?
5 Answers
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Font size of TextView in Android application changes on changing font size from native settings
I want to specify my own text size in my application, but I am having a problem doing this.
14 Answers
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Pass data to layout that are common to all pages
I have a website which have a layout page. However this layout page have data which all pages model must provide such page title, page name and the location where we actually are for an HTML helper I did which perform some action. Also each page have their own view models properties.
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Sql Server equivalent of a COUNTIF aggregate function
I'm building a query with a GROUP BY clause that needs the ability to count records based only on a certain condition (e.g. count only records where a certain column value is equal to 1).
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List of all special characters that need to be escaped in a regex
I am trying to create an application that matches a message template with a message that a user is trying to send. I am using Java regex for matching the message. The template/message may contain special characters.
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scale Image in an UIButton to AspectFit?
I want to add an image to a UIButton, and also want to scale my image to fit with the UIButton (make image smaller). Please show me how to do it.
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Docker - a way to give access to a host USB or serial device?
Last time I checked, Docker didn't have any means to give container access to host serial or USB port . Is there a trick which allows doing that?
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