Plotting error bars on curve from .csv

Hi! I am having difficulty plotting error bars in specific places along a curve created from a .csv. I didn't have luck pulling values from the .csv to try to create error bars, so I manually fille in the values I would need. The curve plots just fine without the errorbar section.

Can anyone help me place the errorbars at specific points on a curve? Thank you!

clear all

clc

data=csvread('average.csv');

x1=data(:,1);

y1=data(:,2);

x=[1,100,200,300,400,500,600,700,800,900,997]; %Where I want the error bars to lay on x axis

y=[100.0193,100.218,100.6957,97.98467,98.906,95.42566667,89.811,91.70433333,91.25666667,93.702,91.515]; %Where I want the error bars to lay on y axis

sd= [0.024,0.029,0.038,0.073,0.099,0.156,0.199,0.229,0.23,0.243,0.279,0.303]; %Standard deviation of the mean of three .csv data files

errorbar(x,y,sd)

plot (x1,y1,'Linewidth',1, 'color','b')

hold on

title('Average')

xlabel('Temperature [C]')

ylabel('Weight [%]')

Answer 1

[Star Strider]

I am not certain what you want.

Try this:

x  = [1,100,200,300,400,500,600,700,800,900,997];
y  = [100.0193,100.218,100.6957,97.98467,98.906,95.42566667,89.811,91.70433333,91.25666667,93.702,91.515];
sd = [0.024,0.029,0.038,0.073,0.099,0.156,0.199,0.229,0.23,0.243,0.279,0.303];
sd = sd(1:numel(x));

x1 = linspace(0, 1000, 50);                                             % Create Vector
y1 = max(y)+sin(2*pi*x1/250)*(max(y)-min(y)) + randn(size(x1))*0.2;     % Create Vector

figure
plot(x1, y1)
hold on
errorbar(x, y, sd, '.', 'MarkerSize',0.25)
hold off
grid

Use your own values for ‘x1’ and ‘y1’.