# Get number of observations for each taxon in first dataset
n_obs_1(ex_taxmap)
# Get number of observations in a specified data set
n_obs_1(ex_taxmap, "info")
n_obs_1(ex_taxmap, "abund")
# Filter taxa using number of observations in the first table
filter_taxa(ex_taxmap, n_obs_1 > 0)
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