[求助]程序调试出现问题，请高手指点

[vivian]

matlab运行出现错误提示为：??? Capitalized internal function J; Caps Lock may be on.

Error in ==> F:\work\data1\icajik.m
On line 5 ==> x1test=reshape(testdata1',1,J*K);

不知道该如何解决，请高手不吝赐教：）

[ln]

:tongue: :tongue: :tongue: 少个 ‘