Dear R-experts,
I have a table with following collumns: State, SamplePlot, Species and
BodySize. I sampled bird species at 34 SamplePlots and 5 States (regions)
monthly during two years. On each bird record I measured bodysize and
identified the species. So I have many records of each species (about 150
species) at each SamplePlot and each Region (State).
Now I would like bootstrap these data, selecting 50 records for each
State/SamplePlot combinations and count how many species (richness) were
sampled at bootstrap. I need to do this 1.000 times.
After that and need join the number of species [obtained at each bootstrap
and for each State/SamplePlot combination] with a dataframe that have other
attributes for SamplePlot (like Area, Perimeter etc). Bellow follow a sample
of these two tables (dataframes).
Could someone help me on this task.
Kind regards,
Miltinho
=========
Table 1 - Bird records
State SamplePlot Species Bodysize SaoPaulo Site1
Spp01 4.35 SaoPaulo Site1 Spp04 0.80 SaoPaulo Site1 Spp01 4.45
SaoPaulo Site1 Spp02 6.46 SaoPaulo Site1 Spp02 3.98 SaoPaulo Site1
Spp02 9.82 SaoPaulo Site2 Spp02 9.71 SaoPaulo Site2 Spp01 7.38
SaoPaulo Site2 Spp03 9.30 SaoPaulo Site2 Spp01 4.32 SaoPaulo Site2
Spp01 6.80 SaoPaulo Site2 Spp02 5.80 SaoPaulo Site2 Spp01 1.53
RioJaneiro Site1 Spp02 1.37 RioJaneiro Site1 Spp02 4.43 RioJaneiro
Site1 Spp01 3.31 RioJaneiro Site1 Spp03 6.25 RioJaneiro Site1
Spp01 3.40 RioJaneiro Site2 Spp01 9.12 RioJaneiro Site2 Spp01 0.80
RioJaneiro Site2 Spp01 6.37 RioJaneiro Site2 Spp02 1.66
RioJaneiro Site2 Spp01 3.49 RioJaneiro Site3 Spp02 8.98 RioJaneiro
Site3 Spp02 5.96 RioJaneiro Site3 Spp01 8.28 RioJaneiro Site3
Spp03 1.51 Bahia Site1 Spp01 6.76 Bahia
Site1 Spp01 9.99 Bahia Site2 Spp01 0.72 Bahia Site2 Spp02 6.63
Bahia Site2 Spp02 3.41 Bahia Site2 Spp01 8.85 Bahia Site2 Spp01
8.13 Bahia Site3 Spp02 4.41 Bahia Site3 Spp01 9.49 Bahia Site3
Spp02 6.77 Bahia Site3 Spp02 0.64 Bahia Site4 Spp01 6.97 Bahia
Site4 Spp03 8.34 Bahia Site4 Spp01 5.46 Bahia Site4 Spp01 5.52
Bahia Site5 Spp01 5.37 Bahia Site5 Spp02 8.66
======
Table 2 - Attributes of SamplePlot
State SamplePlot Area Bahia Site1 10 Bahia Site2
25 Bahia Site3 70 Bahia Site4 15 Bahia Site5 5 RioJaneiro
Site1 32 RioJaneiro Site2 45 RioJaneiro Site3 10 SaoPaulo Site1
23 SaoPaulo Site2 45
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