Semilog x axis for Scatter Plot

Hi, I am trying to plot points, with the x-axis in log scale.

This is my code

ss0 = readtable('MedianBeta.xlsx')
x = ss0{:,2}
y1= ss0{:,3} 
y2= ss0{:,4} 
y3= ss0{:,5} 
y4= ss0{:,6} 

scatter(x,y1,'r')
hold on
%scatter(x,y2,'k')
%hold on
%scatter(x,y3,'m')
%hold on
%scatter(x,y4,'g')
%hold on
set(gca,'xscale','log')
title('Median and Catch')
xlabel('Median')
ylabel('Beta')

It seems simple enough. However, the plot I get is not the logarithmic, with 10^0, 10^1, etc..., that I was looking for (Yet, when I reverse it and set y-axis as log, it does go with the traditional scale of 10^0, 10^1, 10^2, etc. It is just not doing it with the x-axis)

Also, there becomes a point at 0 on the x axis, which is inaccurate. There are no zero values for Median.

Something is off. I'd appreciate any help.

Thank you

Answer 1

[Star Strider]

The plot is working correctly. To more easily see that it is, add this xlim call (temporarily):

xlim([0.01 10]*1E+5)

.

[CMatlabWold]

Thank you! Why do you say "temporarily"?

[Star Strider]

As always, my pleasure!

Use it ‘temporarily’ only to demonstrate that the scaling works as you want it to. Otherwise, it distorts the plot.

[CMatlabWold]

Oh I see. Thanks again!

By the way, do you know how I can just create a straight horizontal line at y = 0?

[Star Strider]

As always, my pleasure!

If you have R2018b or later, you can use yline:

yline(0, 'r', 'LineWidth',2);

and with all releases, this works:

plot(xlim, [0 0], '-r', 'LineWidth',2)

Set the LineWidth and linestyle properties to be what you want. I enlarged it here so I could see it easily (since the lower y-limit is 0).

[CMatlabWold]

Thank you!

[Star Strider]

As always, my pleasure!