A method for generating a data visualization is provided. The method includes receiving a plurality of data points related to fluorescent emissions values from a plurality of reaction sites. The fluorescent emission values include information for a first type of dye and a second type of dye. The method further includes displaying a first portion of the plurality of data points related to the first type of dye in a representation of location of the plurality of reaction sites, and displaying a second portion of the plurality of data points related to the second type of dye in the representation. The method further includes displaying the first portion of the plurality of data points in a scatter plot display. The scatter plot shows fluorescent values related to the first dye on the y-axis and fluorescent values related to the second dye on the x-axis. The method includes displaying the second portion of the plurality of data points in the scatter plot display.