PiscesLogoSmallerStill Maximum size of the data set and run times

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SDR IV has been written to handle any size of data set. However, there will still be a maximum upper limit to the size of data set it can handle that will be defined by the processing power and available memory of your computer.


The program has been tested with up to 3500 species (rows) by 2500 samples (columns). It is not practicable to test rigorously larger data sets.


On a reasonably fast computer, most analyses will be performed in a few seconds; if not instantaneously. However, some analyses of data sets approaching the maximum permitted size can take a long time to run. The more time-consuming calculations include some of the species richness estimations, randomisation tests for a significant difference in indices between samples, and the creation of rank abundance graphs.