Aggregate report questions

Hello all I'm using the aggregate report to check the statistics of my test, but I need to know what exactly is the meaning of the columns of Average, Min and Max, because I obtain results, but I really don't know what is the information showed in that columns, if some one knows what is, please he

How to capture a value using regular expression extrators

Hi All, Is there a way to get in JMeter the value of a variable, I stay using Regular Expresion Extractor, but the value is an ID autogenerate and autoincremental, so how I can construct my regular expression to extract the value of the ID, also the system uses struts Any help will be much appre