Plotly Express provides more than 30 functions for creating different types of figures. Any figure created in a single function call with Plotly Express could be created using graph objects alone, but with between 5 and 100 times more code. Throughout the plotly documentation, you will find the Plotly Express way of building figures at the top of any applicable page, followed by a section on how to use graph objects to build similar figures. Every Plotly Express function uses graph objects internally and returns a aph_objects.Figure instance. Plotly Express is a built-in part of the plotly library, and is the recommended starting point for creating most common figures. Try GMPDC for yourself you'll be modifying your own startup files before you know it! let us know what you think, or leave a comment for Tim here.The plotly.express module (usually imported as px) contains functions that can create entire figures at once, and is referred to as Plotly Express or PX. In fact, I just added a line to my startup file to set my colororder to be distinguishable_colors(20). Note that the default 'colororder' property can be readily modified. I hope this file is a harbinger of more good stuff to come from this author. Tim worked in the L*a*b* colorspace, which was designed to approximate human color perception. That your colors differ from the background, as well as from each other: As a bonus, one can specify a background color as an optional input to ensure Regardless of the number of colors you request. Tim makes it easy to standardize those colors the colors returned by GMPDC are consistent

In the past, I've monkeyed about with customĬolor orders I made up on the fly. Sometimes, however, I want to be able to differentiate more than 7 lines or plots. Isequal(lines(7),get(0, 'DefaultAxesColorOrder')) ans = % and you can verify that they are the same as the repeating sequence in % 'lines' with % % You can see the default color order with: By default, MATLAB axes cycle through these seven different colors when plotting lines: One of those, 'lines,' is a repeatingĪrray of seven distinct colors. MATLAB ships with several built-in colormaps that are useful in different situations. So what does GMPDC do? It provides an easy way to generate distinct, differentiable colors in which to plot a long sequence In fact, I've often considered writing something like this myself-but have never gotten around to it. (My download was the third.) However, I was excited to see this file, and I know it will come in handy.

Maximally-Perceptually Distinct Colors' (GMPDC)-the author's first File Exchange submission (welcome!)-has been downloaded Today, I'm going out on a limb: I'm going to Pick a new file from a new File Exchange author.

Brett's Pick this week is 'Generate Maximally Perceptually-Distinct Colors,', by Tim Holy.

Matlab plot colors