Tanh graph with ±
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Hi MATLAB Community,
How do I add ± to a,b,c,d like ing the graph?
Any help would be appriciated.
a = 95.80266;
b = -88.53938;
c = 30.84839;
d = -16.56475;
y = a+b*tanh((x+c)/d);
plot(y,tanh(x));
grid on;
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Star Strider
2021-3-30
0 个投票
That is an annotation textbox, specifically the result of Create Text Box Annotation with Multiline Text in MATLAB.
You can try usiing them, however I have always found them extremely difficult to work with, so I use text objects instead, since they are simply easier to work with.
4 个评论
Kenneth Bisgaard Cristensen
2021-3-30
Star Strider
2021-3-30
My pleasure!
Try this:
a = 95.80266;
b = -88.53938;
c = 30.84839;
d = -16.56475;
x = linspace(-200, 120, 500);
y = a+b*tanh((x+c)/d);
figure
plot(x, y)
xlabel('Temperature [°C]')
ylabel('Absorved Energy [J]')
The ± values are likely confidence intervals on the parameters. It iwould be difficutl to incorporate them into the plot.
Note — The 
is a statistic on the goodness-of-fit of the curve to the data. It has nothing to do with ‘x’.
is a statistic on the goodness-of-fit of the curve to the data. It has nothing to do with ‘x’.
Kenneth Bisgaard Cristensen
2021-3-30
Star Strider
2021-3-30
As always, my pleasure!
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