Plotting a continuous line from separate data files

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Having an issue with some velocity profile plots I am trying to make. I have 9 data files, and have been plotting using the very basic code below. Only, the plot generated has 9 different line segments which do not connect and have different colours. I would like to plot one continuous line in a single colour. Can anyone offer any insight?
clearvars
folder = xxxxxxxxxx
file = '20percent_00_20.185.19.Vectrino Profiler.00000.mat';
load(fullfile(folder, file))
U00 = Data.Profiles_VelX;
clear Data Config file
file = '20percent_20_40.185.19.Vectrino Profiler.00000.mat';
load(fullfile(folder, file))
U20 = Data.Profiles_VelX;
clear Data Config file
file = '20percent_40_60.185.19.Vectrino Profiler.00000.mat';
load(fullfile(folder, file))
U40 = Data.Profiles_VelX;
clear Data Config file
file = '20percent_60_80.185.19.Vectrino Profiler.00000.mat';
load(fullfile(folder, file))
U60 = Data.Profiles_VelX;
clear Data Config file
file = '20percent_80_100.185.19.Vectrino Profiler.00000.mat';
load(fullfile(folder, file))
U80 = Data.Profiles_VelX;
clear Data Config file
file = '20percent_100_120.185.19.Vectrino Profiler.00000.mat';
load(fullfile(folder, file))
U100 = Data.Profiles_VelX;
clear Data Config file
file = '40percent_120_140.185.19.Vectrino Profiler.00000.mat';
load(fullfile(folder, file))
U120 = Data.Profiles_VelX;
clear Data Config file
file = '20percent_140_160.185.19.Vectrino Profiler.00000.mat';
load(fullfile(folder, file))
U140 = Data.Profiles_VelX;
clear Data Config file
file = '20percent_160_180.185.19.Vectrino Profiler.00000.mat';
load(fullfile(folder, file))
U160 = Data.Profiles_VelX;
clear Data Config file
file = '20percent_160_180.185.19.Vectrino Profiler.00000.mat';
load(fullfile(folder, file))
U180 = Data.Profiles_VelX
U = [U00 U20 U40 U60 U80 U100 U120 U140 U160 U180];
figure;
plot(fliplr(median(U00)),0:1:20); hold on;
plot(fliplr(median(U20)),20:1:40); hold on;
plot(fliplr(median(U40)),40:1:60); hold on;
plot(fliplr(median(U60)),60:1:80); hold on;
plot(fliplr(median(U80)),80:1:100); hold on;
plot(fliplr(median(U100)),100:1:120); hold on;
plot(fliplr(median(U120)),120:1:140); hold on;
plot(fliplr(median(U140)),140:1:160); hold on;
plot(fliplr(median(U160)),160:1:180);hold on;
plot(fliplr(median(U180)),180:1:200);hold on;
figure
hold on
ylim([0 200])
%U00
plot(fliplr(U00), 00:20)
plot(median(fliplr(U00)), 00:20, '-k', 'LineWidth', 3)
%U20
plot(fliplr(U20), 10:30)
plot(median(fliplr(U20)), 10:30, '-k', 'LineWidth', 3)
%U40
plot(fliplr(U40), 30:50)
plot(median(fliplr(U40)), 30:50, '-k', 'LineWidth', 3)
%U60
plot(fliplr(U60), 50:70)
plot(median(fliplr(U60)), 50:1:70, '-k', 'LineWidth', 3)
%U80
plot(fliplr(U80), 70:1:90)
plot(median(fliplr(U80)), 70:1:90, '-k', 'LineWidth', 3)
%U100
plot(fliplr(U100), 90:110)
plot(median(fliplr(100)), 90:110, '-k', 'LineWidth', 3)
%U120
plot(fliplr(U120), 110:130)
plot(median(fliplr(U120)), 110:130, '-k', 'LineWidth', 3)
%U140
plot(fliplr(U140), 130:150)
plot(median(fliplr(U140)), 130:150, '-k', 'LineWidth', 3)
%U160
plot(fliplr(U160), 150:170)
plot(median(fliplr(U160)), 150:1:170, '-k', 'LineWidth', 3)
%U180
plot(fliplr(U180), 170:1:190)
plot(median(fliplr(U180)), 170:190, '-k', 'LineWidth', 3)

Accepted Answer

Jesus Sanchez
Jesus Sanchez on 23 Jan 2020
Combine all of them in one vector before plotting. If they are line-vectors:
x_data = [x1 , x2 , x3 ... x9];
y_data = [y1 , y2 , y3 ... y9];
plot(x_data,y_data);
If they are columns, instead of using "," to concatenate the vectors, use ";".

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