I need to figure out the small issue in this code and to just get it function

so I have this stringe of code qwhich is supposed to call up each of the text files labeled in the dlm ready and its supposed to use the results from the heights and lengths labeled in the "heights" and "p1_test1" files respectively. However, I do not know how to incoperate the files into the code or fix the "error" i have.

Heights file image:

Image of the p1_test1 file:

Code I have:

basically I need to incoperate the heights time and or length and height to try and compute an angle, but im not sure how to incoperate the correct columns as inputs to my equations and or which equation i should use from sin, cos, and or tan. im just basically confused how to get it to work.

[Walter Roberson]

endfunction is not matlab code.