ammatsun edited this page Sep 30, 2014 · 8 revisions

The refine-opentree project was created as part of the Tree-for-all Hackathon and this tutorial shows the use of the module.

1. Setting up the environment:

This tutorial assumes that you have OpenRefine installed and this module installed as an extension.

2. Creating a new project:

Before using the refine-opentree component, you first need to create a project with your dataset. One possibility is to load scientific names from a query against the iDigBio specimen repository. For that, while creating a new project, choose the "Web addresses (URLs)" option and to search for the top 10 mammal species present in iDigBio enter:

http://search.idigbio.org/idigbio/records/_search?source={%22size%22:0,%22query%22:{%22query_string%22:{%22query%22:%22mammalia%22}},%22aggregations%22:{%22my_agg%22:{%22terms%22:{%22field%22:%22scientificname%22,%22size%22:10}}}}

Creating a new project searching for data in iDigBio

Choose to parse the returned data as "JSON files" and select the "my_agg" node.

Parsing iDigBio search response as JSON

The resulting table should be a table where the first column is made of top 10 scientific names and the second column contains the number of specimens with the name in iDigBio. Provide a name such as "iDigBioMammalia10" to this project and create the project.

Table with scientific names and count from iDigBio

3. Assigning OpenTree Taxonomy IDs (OTT IDs):

With a column of scientific names in your project, the next step is to retrieve the OpenTree Taxonomy IDs (OTT IDs) for each name. This is where one of the modules in this repository can help. Select the option to add a new column based on the scientific name column.

Add ottId column based on scientific name column

Give a name such as "ottId" to this new column and add the following Jython code. The resulting values are also shown in the preview table.

import tnrs
return tnrs.getOttId(value)

Code and preview retrieving OTT IDs

The table in the project has now an additional ottId column:

OTT ID column added to the dataset

4. Creating an OpenTree Induced tree visualization:

With a column of OTT IDs, it is possible to use the other component included in this repository: the tree visualizer, based on the OpenTree induced tree service. Before this functionality can be used, we need to ensure that higher-level taxonomy is not mixed with lower-level names. In this example, we see "Mammalia" in row 7 as one of the scientific names that are higher than the others. One trivial method to remove the monomials in this example, is to use a "Text filter" to remove rows based on the scientific name column.

Text filter menu to remove monomials

Once the filter requiring a space is applied, row 7 will disappear from the table.

Monomial removed from table

With a list of OTT IDs, we can now use the visualization module selecting the option "OpenTree" from the menu.

OpenTree menu to create tree visualization

Tree visualization generated by the code in this repository.

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