Single line plot with fixed axis

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Harr 2021-2-24

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https://ww2.mathworks.cn/matlabcentral/answers/754719-single-line-plot-with-fixed-axis

评论： Harr 2021-3-17

Dear Matlab helper,

I wonder if there is any easy way to make the following plot with matlab? It is na line plot with fixed x and y axis. x axis need to be scientific and logarithmic scale. The line has intervals as well (Y1 and Y2). I was trying with fixing the axis scales but not anywhere close to make it ^_^; Please see the attached figure to see what i wanted to make!

For axis scale i used the following code but it is as i mentioned far from the figure.

x=0.00000008:0.00000001:0.00000003;

y=0:50:300

bar(0.00000045, 200)

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Answer 1

Rik 2021-2-24

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https://ww2.mathworks.cn/matlabcentral/answers/754719-single-line-plot-with-fixed-axis#answer_631959

在 MATLAB Online 中打开

Every axes object has an XScale property you can set to 'log' to get the desired plot. You can use the normal plotting tools (e.g. plot and errorbar) after or before setting that. You can simply use

set(gca,'XScale','log')

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Harr 2021-3-17

编辑：Harr 2021-3-17

在 MATLAB Online 中打开

plot-1.jpg

Hi again,

I think i am progressing in making the plot. I wonder how to put labels outside the x-axis? I got the attached plot using the code shown below:

ax = gca; % current axes

ax.FontSize = 12;

ax.TickDir = 'out';

ax.TickLength = [0.02 0.06];

set(gca,'XAxisLocation','top','YAxisLocation','left','ydir','reverse','XScale','log');

SecUp = 12;

SecLow = 200;

T = 0.00000006;

hold(gca,'on')

plot([T; T], [SecUp; SecLow], 'LineWidth',3)

ax.YLim = [0 250];

ax.XLim = [1E-8 1E-3];

xticklabels({'1E-8','1E-7','1E-6','1E-5','1E-4','1E-3'})

ax.YDir= 'reverse';

% ax.XDir= 'reverse';

grid minor

xlabel("T (m^2/s)")

ylabel("Lengh along BH (m)")

title("HFM01")

hold(gca,'on')

SecUp = 0;

SecLow = 12;

T = 0.00000006;

hold(gca,'on')

plot([T; T], [SecUp; SecLow], 'LineWidth',5)

hold(gca,'on')

SecUp = 50;

SecLow = 150;

T = 0.00000007;

hold(gca,'on')

plot([T; T], [SecUp; SecLow], 'LineWidth',3)

Rik 2021-3-17

I formatted your code for you (which you can do yourself) and ran it (which you probably currently can't). As you can see, there is no issue on R2021a. Which release are you using?

Harr 2021-3-17

Hi Rik,

I am using 2018b.

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Single line plot with fixed axis

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