Hmm… To me it seems more likely that [1 - the cumulative height distribution] = the fraction Because for an infinitesimal slab the occupied area equals all higher points….
Can you follow me on that? Thanks On 11/09/2011, at 16.57, David Nečas (Yeti) wrote: > On Sun, Sep 11, 2011 at 03:58:54PM +0200, Jakob A. S. Meyer wrote: >> I'm analysis AFM data on some self-assaembled thin films. I've found >> that different regions have different coverage by integrating height >> distributions. Now I'd like to say if the different regions have the >> same number of molecules and thus only the film thickness/homogeneity >> varies. Or if there are actually different amounts of molecules in the >> different regions. >> >> I'm thinking that if I divide the data into slaps along the vertical >> axis and can get the occupied volume in each slap, that will do. But >> how to do that? > > IIUC what you want to do, the volume occupied by matter within each slab > is > > slab-volume × fraction-occupied-by-material > > The slab volume is simply the image area times slab thickness and the > fraction equals to the cumulative height distribution > > > http://gwyddion.net/documentation/user-guide-en/statistical-analysis.html#height-angle-distribution > > caulculated by the statistical functions tool. > > Hope it helps, > > Yeti > > > ------------------------------------------------------------------------------ > Using storage to extend the benefits of virtualization and iSCSI > Virtualization increases hardware utilization and delivers a new level of > agility. Learn what those decisions are and how to modernize your storage > and backup environments for virtualization. > http://www.accelacomm.com/jaw/sfnl/114/51434361/ > _______________________________________________ > Gwyddion-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/gwyddion-users ------------------------------------------------------------------------------ Using storage to extend the benefits of virtualization and iSCSI Virtualization increases hardware utilization and delivers a new level of agility. Learn what those decisions are and how to modernize your storage and backup environments for virtualization. http://www.accelacomm.com/jaw/sfnl/114/51434361/ _______________________________________________ Gwyddion-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/gwyddion-users
