Hi, I've just updated to grass64 and i.cluster seems to work on FP rasters: GRASS 6.3.1svn (p112r056):~ > r.info -r tcor.lsat7_2000.toar.1 min=0.039443 max=0.442334 [Raster MASK present] GRASS 6.3.1svn (p112r056):~ > r.info -r tcor.lsat7_2000.toar.2 min=0.021795 max=0.572899 [Raster MASK present] GRASS 6.3.1svn (p112r056):~ > r.info -r tcor.lsat7_2000.toar.3 min=-0.012797 max=0.649817 [Raster MASK present] GRASS 6.3.1svn (p112r056):~ > r.info -r tcor.lsat7_2000.toar.4 min=-0.019646 max=1.026969 [Raster MASK present] GRASS 6.3.1svn (p112r056):~ > r.info -r tcor.lsat7_2000.toar.5 min=-0.030773 max=0.799299 [Raster MASK present]
Here's the result of the sigfile report: Cluster parameters Number of initial classes: 30 Minimum class size: 17 Minimum class separation: 0.000000 Percent convergence: 98.000000 Maximum number of iterations: 30 Row sampling interval: 62 Col sampling interval: 66 Sample size: 3005 points means and standard deviations for 4 bands means 0.0987976 0.0624848 0.270133 0.150258 stddev 0.030849 0.036726 0.0730868 0.0528295 initial means for each band class 1 0.0679486 0.0257588 0.197046 0.097428 class 2 0.0700761 0.0282916 0.202087 0.101071 class 3 0.0722036 0.0308244 0.207127 0.104715 class 4 0.0743311 0.0333573 0.212168 0.108358 class 5 0.0764586 0.0358901 0.217208 0.112002 class 6 0.0785862 0.0384229 0.222249 0.115645 class 7 0.0807137 0.0409557 0.227289 0.119289 class 8 0.0828412 0.0434886 0.23233 0.122932 class 9 0.0849687 0.0460214 0.23737 0.126575 class 10 0.0870962 0.0485542 0.242411 0.130219 class 11 0.0892238 0.051087 0.247451 0.133862 Previously from grass63 I get this: Cluster parameters Number of initial classes: 30 Minimum class size: 17 Minimum class separation: 0.000000 Percent convergence: 98.000000 Maximum number of iterations: 30 Row sampling interval: 62 Col sampling interval: 66 Sample size: 3005 points means and standard deviations for 4 bands means 0.00 0.00 0.00 0.00 stddev 0.00 0.00 0.06 0.03 initial means for each band class 1 0.00 0.00 -0.05 -0.03 class 2 0.00 0.00 -0.05 -0.03 class 3 0.00 0.00 -0.05 -0.03 class 4 0.00 0.00 -0.04 -0.02 class 5 0.00 0.00 -0.04 -0.02 class 6 0.00 0.00 -0.03 -0.02 class 7 0.00 0.00 -0.03 -0.02 class 8 0.00 0.00 -0.03 -0.02 class 9 0.00 0.00 -0.02 -0.01 class 10 0.00 0.00 -0.02 -0.01 class 11 0.00 0.00 -0.01 -0.01 Thanks! maning On 6/23/08, maning sambale <[EMAIL PROTECTED]> wrote: > Nikos, > > thank you fo testing seems it's working OK now. I will test it myself > later. > > maning > On 6/20/08, Nikos Alexandris <[EMAIL PROTECTED]> wrote: >> Not sure if this helps... (!) >> --- >> >>> r.univar change_pca_250m_06.239_07.242.2_test >> 100% >> total null and non-null cells: 247720 >> total null cells: 162432 >> >> Of the non-null cells: >> ---------------------- >> n: 85288 >> minimum: -0.315021 >> maximum: 0.260252 >> range: 0.575273 >> mean: -0.000584902 >> mean of absolute values: 0.0129577 >> standard deviation: 0.0191773 >> variance: 0.00036777 >> variation coefficient: -3278.73 % >> sum: -49.8850918202 >> >>> r.univar change_pca_250m_06.239_07.242.1_test >> 100% >> total null and non-null cells: 247720 >> total null cells: 162432 >> >> Of the non-null cells: >> ---------------------- >> n: 85288 >> minimum: -0.513804 >> maximum: 0.394813 >> range: 0.908617 >> mean: 0.0211992 >> mean of absolute values: 0.032389 >> standard deviation: 0.042701 >> variance: 0.00182337 >> variation coefficient: 201.428 % >> sum: 1808.0350767233 >> >>>cat sig_cluster_test >> #produced by i.cluster >> #Class 1 >> 23 >> 0.014645 -0.107214 >> 0.000473 >> 0.000026 0.000349 >> #Class 2 >> 37 >> -0.014961 -0.076135 >> 0.000157 >> 0.000027 0.000139 >> #Class 3 >> 52 >> 0.002926 -0.056125 >> 0.000124 >> -0.000012 0.000061 >> #Class 4 >> 35 >> -0.028285 -0.040243 >> 0.000049 >> 0.000003 0.000105 >> #Class 5 >> 73 >> -0.004751 -0.035473 >> 0.000021 >> -0.000002 0.000035 >> >> [...] >> >> > > > -- > |---------|----------------------------------------------------------| > | __.-._ |"Ohhh. Great warrior. Wars not make one great." -Yoda | > | '-._"7' |"Freedom is still the most radical idea of all" -N.Branden| > | /'.-c |Linux registered user #402901, http://counter.li.org/ | > | | /T |http://esambale.wikispaces.com| > | _)_/LI > |---------|----------------------------------------------------------| > -- |---------|----------------------------------------------------------| | __.-._ |"Ohhh. Great warrior. Wars not make one great." -Yoda | | '-._"7' |"Freedom is still the most radical idea of all" -N.Branden| | /'.-c |Linux registered user #402901, http://counter.li.org/ | | | /T |http://esambale.wikispaces.com| | _)_/LI |---------|----------------------------------------------------------| _______________________________________________ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev