The input to Microreact is a data file in comma separated value format (CSV, A in Fig. 1), along with an optional tree file in Newick format (Felsenstein). The CSV file should contain entries as rows and data variables as columns. The format of the column headers is summarized in Table 1. The name of the entries in the ID column must be unique and exactly match those utilized as leaf labels within the Newick tree file. Geolocations should be specified in the latitude and longitude columns as decimals (WGS84). Temporal data should be formatted into three separate columns: year, month and day. Missing data values for month and day will result in the entry being dated to the 1st of January of the year specified. Likewise, missing day values will result on the entry to be dated to the 1st of the month and year specified.
The minimal data required is a CSV with a set of IDs and at least one data column. If geographical, temporal or clustering data are included, the Microreact will link them to the data table via a map, timeline or tree, respectively. For all possible combinations of data visualization see Table S1 (available in the online Supplementary Material).
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