Hi,there I am a new user of ENVI, and have a question like this: I got time-series MODIS data, and want to got a polt in which the X axias is the time (date) obtain from these data, and Y axias is the DN number (such as NDVI or EVI). How can I got it? Do I need to realize it by using IDL programming, or The ENVI has the function? pls reply in detail because I just learn ENVI from last week. Many thanks for your help!