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The 'growth_form_table' function in the 'ausplotR' package can be used to generate occurrence matrices for plant growth forms in the AusPlots plots. The plant growth forms considered are those in the National Vegetation Information System (NVIS; Executive Steering Committee for Australian Vegetation Information, 2003).

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# ====================================================
# PLANT GROWTH FORM DATA: 'growth_form_table' function
# ====================================================

# NVIS Plant Growth Forms Occurrence Matrix,' Presence/Absence' scoring metric
# ============================================================================
AP.data.PGF.PA = growth_form_table(AP.data$veg.PI, m_kind="PA")
class(AP.data.PGF.PA)

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## [1] "data.frame"

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# NVIS Plant Growth Forms Occurrence Matrix, 'Percentage Cover' scoring metric with 'Projected Foliage Cover' option
# ==================================================================================================================
AP.data.PGF.PC.PFC = growth_form_table(AP.data$veg.PI, m_kind="percent_cover", cover_type="PFC")
#class(AP.data.PGF.PC.PFC)
#dim(AP.data.PGF.PC.PFC)
head(AP.data.PGF.PC.PFC)

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##                  Aquatic Bryophyte Chenopod Cycad  Epiphyte Fern
## NSABBS0005-58582       0         0  0.00000     0 0.3289474    0
## NSABBS0006-58557       0         0  0.00000     0 0.1543210    0
## NSABHC0001-53596       0         0  0.00000     0 0.0000000    0
## NSABHC0002-53597       0         0 40.46053     0 0.0000000    0
## NSABHC0003-53598       0         0  0.00000     0 0.0000000    0
## NSABHC0004-53599       0         0  0.00000     0 0.0000000    0
##                        Forb Fungus Grass.tree Heath.shrub Hummock.grass NC
## NSABBS0005-58582  0.1644737      0          0    2.138158             0  0
## NSABBS0006-58557  0.6172840      0          0    0.000000             0  0
## NSABHC0001-53596 26.8656716      0          0    0.000000             0  0
## NSABHC0002-53597 40.1315789      0          0    0.000000             0  0
## NSABHC0003-53598  4.6511628      0          0    0.000000             0  0
## NSABHC0004-53599 29.6495957      0          0    0.000000             0  0
##                  Rush Sedge      Shrub Shrub.Mallee Tree.Mallee Tree.Palm
## NSABBS0005-58582    0     0 25.9868421            0           0  103.1250
## NSABBS0006-58557    0     0 17.2839506            0           0  114.9691
## NSABHC0001-53596    0     0 61.5671642            0           0    0.0000
## NSABHC0002-53597    0     0  0.6578947            0           0    0.0000
## NSABHC0003-53598    0     0 92.6356589            0           0    0.0000
## NSABHC0004-53599    0     0 38.0053908            0           0    0.0000
##                  Tussock.grass Vine
## NSABBS0005-58582     0.1644737    0
## NSABBS0006-58557     0.6172840    0
## NSABHC0001-53596    12.6865672    0
## NSABHC0002-53597    21.7105263    0
## NSABHC0003-53598     2.7131783    0
## NSABHC0004-53599    32.3450135    0

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# NVIS Plant Growth Forms Occurrence Matrix, 'Percentage Cover' scoring metric with 'Opaque Canopy Cover' option
# ==============================================================================================================
AP.data.PGF.PC = growth_form_table(AP.data$veg.PI, m_kind="percent_cover", cover_type="OCC")
#class(AP.data.PGF.PC)
#dim(AP.data.PGF.PC)
head(AP.data.PGF.PC)

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##                  Aquatic Bryophyte Chenopod Cycad  Epiphyte Fern
## NSABBS0005-58582       0         0  0.00000     0 0.3289474    0
## NSABBS0006-58557       0         0  0.00000     0 0.1543210    0
## NSABHC0001-53596       0         0  0.00000     0 0.0000000    0
## NSABHC0002-53597       0         0 40.46053     0 0.0000000    0
## NSABHC0003-53598       0         0  0.00000     0 0.0000000    0
## NSABHC0004-53599       0         0  0.00000     0 0.0000000    0
##                        Forb Fungus Grass.tree Heath.shrub Hummock.grass NC
## NSABBS0005-58582  0.1644737      0          0    2.138158             0  0
## NSABBS0006-58557  0.6172840      0          0    0.000000             0  0
## NSABHC0001-53596 26.8656716      0          0    0.000000             0  0
## NSABHC0002-53597 40.1315789      0          0    0.000000             0  0
## NSABHC0003-53598  4.6511628      0          0    0.000000             0  0
## NSABHC0004-53599 29.6495957      0          0    0.000000             0  0
##                  Rush Sedge      Shrub Shrub.Mallee Tree.Mallee Tree.Palm
## NSABBS0005-58582    0     0 25.9868421            0           0  103.1250
## NSABBS0006-58557    0     0 17.2839506            0           0  114.9691
## NSABHC0001-53596    0     0 61.5671642            0           0    0.0000
## NSABHC0002-53597    0     0  0.6578947            0           0    0.0000
## NSABHC0003-53598    0     0 92.6356589            0           0    0.0000
## NSABHC0004-53599    0     0 38.0053908            0           0    0.0000
##                  Tussock.grass Vine
## NSABBS0005-58582     0.1644737    0
## NSABBS0006-58557     0.6172840    0
## NSABHC0001-53596    12.6865672    0
## NSABHC0002-53597    21.7105263    0
## NSABHC0003-53598     2.7131783    0
## NSABHC0004-53599    32.3450135    0

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# NVIS Plant Growth Forms Occurrence Matrix, 'Species Richness' scoring metric
# ============================================================================
AP.data.PGF.SR = growth_form_table(AP.data$veg.PI, m_kind="richness")
#class(AP.data.PGF.SR)
#dim(AP.data.PGF.SR)
head(AP.data.PGF.SR)

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##                  Aquatic Bryophyte Chenopod Cycad Epiphyte Fern Forb
## NSABBS0005-58582       0         0        0     0        2    0    1
## NSABBS0006-58557       0         0        0     0        1    0    2
## NSABHC0001-53596       0         0        0     0        0    0    7
## NSABHC0002-53597       0         0       11     0        0    0    8
## NSABHC0003-53598       0         0        0     0        0    0    2
## NSABHC0004-53599       0         0        0     0        0    0   18
##                  Fungus Grass.tree Heath.shrub Hummock.grass NC Rush Sedge
## NSABBS0005-58582      0          0           1             0  0    0     0
## NSABBS0006-58557      0          0           0             0  0    0     0
## NSABHC0001-53596      0          0           0             0  0    0     0
## NSABHC0002-53597      0          0           0             0  0    0     0
## NSABHC0003-53598      0          0           0             0  0    0     0
## NSABHC0004-53599      0          0           0             0  0    0     0
##                  Shrub Shrub.Mallee Tree.Mallee Tree.Palm Tussock.grass
## NSABBS0005-58582     4            0           0         5             1
## NSABBS0006-58557     5            0           0         5             3
## NSABHC0001-53596    18            0           0         0             5
## NSABHC0002-53597     2            0           0         0             5
## NSABHC0003-53598    16            0           0         0             4
## NSABHC0004-53599    13            0           0         0            11
##                  Vine
## NSABBS0005-58582    0
## NSABBS0006-58557    0
## NSABHC0001-53596    0
## NSABHC0002-53597    0
## NSABHC0003-53598    0
## NSABHC0004-53599    0

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