This cartoon indicates how data can be presented. This is a contour plot with a PROJECTION histogram of each of the variables shown on the contour plot. For example if contour plots are to be presented, contour levels must be provided (see box at left). Without the contour levels, there is no way to know how the data were actually derived - for example, the lowest level might be 1 cell or even 100 cells - so the data must be provided.
The second issue of importance is the labeling of the axes. It is NOT acceptable to label axes as FL! or FL2. This shows an unscientific understanding of the nature of data presentation and should NEVER be used. It is best to identify the name of the parameter/variable represented and if applicable, the wavelength of the signal. If the signal is LOG data, this should be indicated also.