How to load a variable name from one function to another?

Question

Katrina Simon 2018-1-22

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/378452-how-to-load-a-variable-name-from-one-function-to-another

编辑： Stephen23 2018-1-23

Hi, I am writing a script in which I call 4 separate functions. I am using the following:

function dat = run_experiment(varargin)
dat.subj = input('Enter Participant Code here');
run_test
run_introduction
run_prepost_test
run_training
end

However, dat.subj is called upon in each function in order to save the filename based on which test it is and it uses the current time. For example, this is in run_introduction:

dat.fileName = [dat.subj '_' dat.test_type '_' dat.timeNow '.mat'];

Every time I run the run_experiment and enter a participant ID for dat.subj, it doesnt seem to carry over when run_introduction begins. I get the error:

'Reference to non-existent field 'subj'.

Does anyone have any tips on how to call a variable from a different function? I cannot load it from the workspace, since the file it creates is contingent on the subject ID and the time now.

Thanks!

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

James Tursa 2018-1-22

编辑：Stephen23 2018-1-23

在 MATLAB Online 中打开

Please confirm that the files run_test, run_introduction, run_prepost_test, and run_training are all functions and not scripts. And if they are functions, why can't you just pass in the dat variable as an argument? E.g.,

dat = run_introduction(dat);

And then in the file run_introduction.m:

function dat = run_introduction(dat)

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1