|
|
|
|
•Regression parameters are derived from four
sources.
|
|
•The actual area frame survey provides the
variable 'y', which is farmer reported acres of some given crop/cover type,
within each of 'n' sampled segment areas.
|
|
•Sampled segment areas are then located in the
categorized data; the variable 'x' comes from counting pixels categorized to
that crop type within the segment boundaries.
|
|
•The parameter 'b' (or slope) is calculated as a
relationship between the x's and y's for each stratum.
|
|
•The area frame itself gives the number (known
as 'N') of all possible segments in the analysis area.
|
|
•Finally classification of full scenes allows
counting of all pixels categorized to the given crop within the entire
analysis area.
|
|
|