The variable "g1_land" might be used before it is defined - Error

Is something wrong because of that red line? The program can't find that file (g1_land.txt)? How can I solve that? Thanks

[Walter Roberson]

Duplicate post requiring merging https://www.mathworks.com/matlabcentral/answers/363461-the-variable-x-might-be-used-before-it-is-defined

Answer 1

[Birdman]

Change the first line with this:

g1_land=load('g1_land.txt');