Re: [R] Filtering Time Series / apply STL method

2003-08-14 Thread Prof Brian Ripley
No graph was shown: R-help strips most attachments. On Wed, 6 Aug 2003, Jan Verbesselt wrote: Dear R Helpers, Which technique can I apply to get the noise out of the following graph? The data displayed shows the seasonal variation of NDVI (vegetation photosynthesis) extracted from the

[R] Filtering Time Series / apply STL method

2003-08-07 Thread Jan Verbesselt
Dear R Helpers, Which technique can I apply to get the noise out of the following graph? The data displayed shows the seasonal variation of NDVI (vegetation photosynthesis) extracted from the VEGETATION satellite sensor. It contains big errors caused by cloud cover, which gives very low values