Expression Threshold
After performing log2 transformation (see Input File Type) ScoPathArray allows the user to specify values for the maximum (2 by default) and minimum (-2 by default) cut-off values for gene expression. For example, if a maximum threshold value is set to 2 then all fold increases greater than 2 will be assigned the same colour, and those between 0 and 2 will be split into four intervals each with a distinct colour. Where necessary a colour key will be provided whereby red and green will indicate a value above the maximum and below the minimum threshold, respectively. Genes for which no data was provided are drawn in grey and zero values are coloured in black.