[GRASS-user] v.db.select

GRASS GRASS user
1

Hi,

How was the mean calculated from the table below? these are the output of v.db.select from v.rast.stats.



Cat

n

min

max

range

mean

stddev

variance

coeff-va

sum


26

1126

78

97

19

86.59

9.46

89.42

10.92

97499

–
Kind Regards
TS Gumede | CSIR | Meraka Institute | ICT4EO Research Group
Office Tel: 012 841 2606 | mobile : 072 258 1650
“Work like a slave in order to live like a King” ~ Unknown

2

Sandile Gumede wrote:

How was the mean calculated from the table below? these are the output of
v.db.select from v.rast.stats.

Hi! As far as I understand, v.rast.stats is a script calling r.mapcalc to
perform the calculations. Subsequently, calculations depend on the raster
map(s) (size, resolution, data type, etc.)

Regards, Nikos