Sentence examples for absence matrix from inspiring English sources

Consequently, we constructed a presence absence matrix for all of the known introns and exons in tetraspanins from fully sequenced genomes.

A phylogeny of the isolates was also constructed using Dollo parsimony based on the presence and absence matrix of genes [50] implemented in PAUP4.0b10.

The phylogeny obtained by hierarchical clustering closely agreed with the dendrogram obtained by Dollo parsimony of the presence and absence matrix (data not shown).

To classify the species qualitatively by functional group and obtain the quantitative value of functional diversity, a presence absence matrix of functional traits was generated for each species, in each of the three reserves.

A neighbor-joining phylogenetic tree was then constructed based on the presence or absence matrix formed by allelic variations.

In addition, we constructed 100 bootstrap pseudoreplicates by resampling the original presence and absence matrix (see ortholog identification above).

Finally, the factor scores of species were joined in a presence-absence matrix that gives us information to identify where and why conservation management are requires.

Using the country presence-absence matrix for each taxonomic group, we estimated a dissimilarity matrix based on Sorensen's index, and then each country was recoded as a member of its particular ecoregion.

All analyses were based on a presence-absence matrix of 63 species (Table S1) from 373 Caribbean forereef sites surveyed as part of the Atlantic and Gulf Reef Rapid Assessment (AGRRA; [25] from 1997 through 2003 (Figure 1).

This presence-absence matrix was used as the basis for all AFLP analyses.

The dendrogram was generated using the Unweighted pair group method with arithmetic mean (UPGMA), and Jaccard co-efficient was estimated from a band presence-and-absence matrix.