Gavin.Jones

Hi all, firstly I apologise if this is a stupid question but ive hit a brickwall. Im trying to create a calculated field that brings back a meter reading value if the related meter reading date meets certain criteria (Today-30 days). I can get this to work in Excel but not in Jaspersoft. I am using this: =IF("Meter Read Date">(TODAY()-30),"Meter Read,"") The error returned states that the arguments either side of greater than are not compatable. Can anyone help with this? Thanks!