QQPlot
The qqplot function calculates percentiles (1-99) for two sample sets, based on queries, so they can be compared visually. The qqplot function takes four parameters:
-
The numeric field for which to calculate the percentiles
-
The Lucene/Solr query for the sample set A
-
The Lucene/Solr query for the sample set B
-
The sample size for both sample sets
Sample syntax
select qqplot(sepal_width_d, "species_s:versicolor", "species_s:virginica", 150) as quantiles,
quantiles_estimate_a,
quantiles_estimate_b
from irisResult set
The result set for the qqplot function contains one row for each percentile 1-99. The qqplot function returns the percentile (1-99). The quantiles_estimate_a and quantiles_estimate_b fields contain the estimated percentile value, for sample sets A and B, at each percentile.
Visualization
The qqplot function can be visualized by plotting the percentile (1-99) on the x-axis and the quantiles_estimate_a and quantiles_estimate_b columns on the y-axis.
