scatter99Scatter better. With Effect Layers. Effect Layers allow a new way of scattering. Like building up layers in Photoshop, you can now layer, mix and blend effects for Masking (Heht, Texture,The plot function will be faster for scatterplots where markers don't vary in size or color.. Any or all of x, y, s, and c may be masked arrays, in which case all masks will be combined and only