Hi Luke,
From the information you have given, it appears that the primary issue causing the problems you have mentioned is the mismatch in the number of elements between the 'GRR_SF' array and the 'NP' array. If the element counts are unequal, MATLAB will not display the data accurately, which might lead to the incorrect spacing of the x and y axes.
According to the MathWorks documentation for the 'plot' function, "To display a series of points connected by lines, you should ensure that X and Y are vectors of the same length."
To visualize the graph with both data points and connecting lines, you can specify a 'marker' along with a 'line style'in the 'plot' function. Kindly go through the example code below.
% The 'o-' option will create a plot with both data points and connecting lines
plot(NP, GRR_SF, 'o-');
Additionally, I am able to see the axis labels and the title correctly when plotting in MATLAB R2022a.
Kindly refer to following link of MathWorks documentation on ‘plot’ function for more information: https://www.mathworks.com/help/matlab/ref/plot.html?searchHighlight=plot&s_tid=srchtitle_support_results_1_plot
I hope that the details provided will aid in troubleshooting the issues.
