Subjects are able to set these points reliably using a monochromator and perceive them as being “unique” in that they do not contain a mixture of any other color, for instance, unique green (UG) appears neither yellowish nor bluish (Jordan & Mollon, 1995 Schefrin & Werner, 1990). The “unique hues” of red, green, yellow, and blue have been recognized as having special perceptual properties for well over a century. We model this effect using simulations of monochromatic unique green matching to broadband illuminations and show that matches in the region at approximately 500 nm exhibit particularly high variance both with respect to macular pigment density and also with respect to the precise shape of the broadband reference exemplar spectrum. Our results indicate that unique green wavelengths in our population are distributed unimodally and are correlated positively with macular pigment density individuals with a higher density of macular pigment select longer wavelengths of light as unique green than individuals with a lower density of macular pigment. We have also explored the possibility that individual differences in macular pigment density may be responsible for the variation in unique green wavelength. We have investigated this claim using a Wright colorimeter to measure the unique green wavelength of 58 participants and we have analyzed previous unique green literature by applying a rigorous statistical test to historical datasets. Some researchers have reported that this broad distribution of UG settings is bimodal and that the distribution results from the superposition of two or more subpopulations. If you want one of the axes to be shorter, the only way to get that effect is to cover up part of one of the axes with a drawn rectangle that you then make white (or whatever your page background color is).Abstract Monochromatic unique green (UG) is more variable across the population than any other unique hue. Prism always draws the right Y axis, if there is one, the same length as the left axis and starting and stopping at the same position on the page. You'll need to tell Prism to plot all the data sets on either the right or left axis, so may need to transform your values to make this work well. With some fussing to get the sizes to match, and the data scaled right, you can give the illusion you want. Now make a layout and put your real graph next to this bogus graph with only a Y axis. You can make that whatever scale makes sense. Delete all the titles, You are left with just a Y-axis. Hide the X-axis (one of the choices for axis frame). You can, however, create that effect with a bit of a workaround. Select one axis, drop the Change menu, choose Selected Object(s), and set the color (and thickness) on the Format Object dialog that appears. It is possible to give the two Y axes different colors. To use different colors for the two Y axes Turn off the left Y axis, and create a right Y axis to which you assign data set. To create a graph with ONLY a right Y axis

Prism will automatically create the axis. If you assign a data set to the right Y-axis, and there is no Y axis. Repeat for each data set to be plotted on the right Y-axis. At the bottom of the Appearance tab, select “Right Y axis”.

Depending on the scale of the axis, the data points may or may not all be visible.ĭouble-click on a data point or click on the Format Graph button on the Prism toolbar. Select the tab for 'Right Y axis' and choose how you want the axis to be formatted.Īll data sets are initially graphed using the left Y-axis. Or click on the Format Axis tool in the Prism toolbar. Note that you never can have more than one X-axis.ĭouble-click on an axis to open the Frame and Origin tab of the Format Axes dialog. When you plot several kinds of data on one graph, it is often useful to plot some data using a Y-axis on the left side of the graph and other data using a Y-axis on the right side of the graph.

Use datathief with no axis