matlab几个特殊符号@...+~

Posted 2021-09-04 aha

1. @
   @ 除了作为函数句柄，类文件夹的名字以@符号打头。
   D:\\2021.04.13-new\\2021-miau\\4xln\\4xln\\mati\\+mati\\@Diff
2. ...
   连续3个“.”表示续行符，当需要注释掉其中某行只需在指定语句前加续行符。

% courtesy of J.Z.X and J.W.
Nacq1 = 5 ;          % total number of acquisition points
pulse_tcos1 = mati.DiffusionPulseSequence(Nacq1,...
    \'TE\',               106,...                 % echo time [ms]
    \'delta\',            40.9,...                  % gradient duration [ms]
    \'Delta\',            54.1794,...                  % separation of two gradients [ms]
    \'b\',                  [0,0.18,0.36,0.54,0.72], ...      % b value [ms/um^2]
    \'n\',                  [1,1,1,1,1],...             % number of oscillating cycles
 ...\'shape\',         "tcos",...                 % gradient waveform shape
    \'gdir\',             [0 0 0],...              % gradient directions. It should be a Nx3 matrix
    \'trise\',            0.9) ;                  % gradient rise time [ms]

3. +
   matlab包的文件夹名字以+符号打头。
   D:\\2021.04.13-new\\2021-miau\\4xln\\4xln\\mati\\+mati\\+Physics
4. ~
   可表示忽略某参数，作为函数调用中输出参数的占位符。

function ogsePulse(someInput,~,~) % ignore certain input
[~,b] =find(sta_data>29); % ignore row index only return column index