# Glossary

Average dynamic range | The average dynamic range is the mean of the replicate dynamic ranges (see below) for the plate over all the replicates.
Replicate dynamic range | The replicate dynamic range provides an indicator of the gap between the positive and the negative controls. Depending on the value of the "scale" attribute from the "summarizePlate" function, the replicate dynamic range is either: - the difference between the arithmetic average on positive and negative controls - the ratio between the geometric averages on positive and negative controls. By default the choice is based on the scale of the data: if the scale is positive, then it is the ratio of geometric average, otherwise, it is the difference of arithmetic averages.
Repeatability standard deviation | The repeatability standard deviation is the standard deviation for the random variable 'standard deviation for a gene across all the replicates'. It is used to determine if the results for each replicate are similar or not. 0 is the perfect score, whereas a high value means the results are very different.
Spearman rank correlation | The Spearman rank correlation coefficient is a mesure of correlation between two replicates. A result close to zero means there is no correlation between the two replicates, whereas a result close to 1 means there is a strong correlation between them.
Spearman rank correlation (min - max) | This values correspond to the min and the max of the Spearman rank correlation among replicates.