How can I plot and label 4 lines from 1 vector?

I have a function that creates 1 long vector from a row in a table (124 columns) and then plots that vector. I'd like to divide that vector into 4 parts and plot each part as a line on the same graph with its own lable e.g. Vector - Part 1, Vector - Part 2 etc. The X axis is the same for all the parts.

[Rik]

What have you tried? Can you post example data?

Answer 1

[KSSV]

Read about reshape, plot and legend.

A = rand(1,124) ;
B = reshape(A,[],4) ;   % reshape into 4 columns 

plot(B)
legend("Part1","part2","part3","part4")