Our fall 2020 release shipped this week. Today, I'll go over some of my favorite convenience features. You can read the full release notes here.

First and foremost - fileparts is vectorized now!!! This has been a longstanding wish:

[p,f,ext] = fileparts(fullfile(pwd, ["hello.m", "world.fig"]))

p = 
  1×2 string array
    "C:\Documents\MATLAB\potw\R2020b"    "C:\Documents\MATLAB\potw\R2020b"
f = 
  1×2 string array
    "hello"    "world"
ext = 
  1×2 string array
    ".m"    ".fig"

If you want your function accept a file or folder, you can use mustBeFile and mustBeFolder as validators in an arguments block and it will validate that they exist. You'll also get tab-complete of file or folder names for free.

arguments
    filename  (1, 1) string {mustBeFile}
end

Have you ever wanted to read the lines of a text file and used either fileread which returns a long character vector or fgetl yourself? Well now you can use readlines!

t = readlines('mainR2020b.m');
t(1:4)

ans = 
  4×1 string array
    "%% R2020b"
    "%"
    "% <http://www.mathworks.com/matlabcentral/profile/authors/3208495 Sean>'s"
    "% pick this week is"

XML reading and writing has also always been a challenge. You can now read and write XML files with readstruct or writestruct.

s = imfinfo('cameraman.tif');
writestruct(s, 'cameraman.xml');

In the app building world, you can now set the Icon for the uifigure to a custom one, and export (print) the app.

uifigure("Icon", "HawaiiFlower.jpg", "Name", "Custom Icon Figure")

Comments

Give it a try and let us know what you think here.

Get the MATLAB code

Published with MATLAB® R2020b