Difference between errorbar and errorbarxy (function)

Hello,

I'm calculating and plotting a mean-Values and standard deviation:

If I plot it via errorbar, I get:

....
errorbar(M1(:,2),M1(:,1),S1(:,2),S1(:,1),'-o','both','LineWidth',1.5,'MarkerFaceColor','cyan','MarkerSize',10,'MarkerEdgeColor','black','DisplayName',label1{1})
....
errorbar(M2(:,2),M2(:,1),S2(:,2),S2(:,1),'-s','both','LineWidth',1.5,'MarkerFaceColor','yellow','MarkerSize',10,'MarkerEdgeColor','black','DisplayName',label2{1})
...

If I plot with errorbarxy function, I get:

errorbarxy(M1(:,2),M1(:,1),S1(:,2),S1(:,1))
....
errorbarxy(M1(:,2),M1(:,1),S1(:,2),S1(:,1))
....

Why, I'm getting different line length? I tnink an errorplot has a wrong length, because there are each one value for x-axis and y-axis?! What is the better way to plot main + std?

values are:

M1 =

    0.0570    0.9098
    0.0860    0.8615
    0.7741    0.1542
    0.9682    0.0200
    0.9874    0.0016
    
M2 =

    0.0591    0.9049
    0.2164    0.7222
    0.7954    0.1332
    0.9703    0.0091
    0.9761    0.0082
    
S1 =

    0.0196    0.0220
    0.0356    0.0585
    0.0349    0.0636
    0.0354    0.0347
    0.0027    0.0027
    
S2 =

    0.0323    0.0461
    0.2140    0.2619
    0.2021    0.1885
    0.0216    0.0158
    0.0171    0.0141

[dpb]

Why use a FEX submission when there's now equivalent function (errorbar) in base product?

I've never seen any indication it (errorbar) has an error so not going to try to debug something else.

Make sure you've got the inputs in in the expected order and orientation.

[Nik Rocky]

Sorry, I dont understand, did you mean - basic function has allready x-y errorbar plot? What is the syntaxis? Thanks!

[dpb]

>> which -all errorbar
C:\ML_R2019b\toolbox\matlab\specgraph\errorbar.m
errorbar is a built-in method                     % tall method
>> which -all errorbarxy
'errorbarxy' not found.
>> 

errorbarxy is NOT a TMW-supplied function but there is one for the job; my recommendation is to use it.

The FEX submission may be just perfectly fine, but why throw confusion between two functions that may have chosen different input arrangements into the mix besides?

[Nik Rocky]

Sorry, it was to late and my brain was down.

I have a solution with standard errobar:

errorbar(M2(:,2),M2(:,1),S2(:,2),S2(:,2),S2(:,1),S2(:,1),'-s','LineWidth',1.5,'MarkerFaceColor','yellow','MarkerSize',10,'MarkerEdgeColor','black','DisplayName',label2{1})

I have to define xpos and xneg, ypos and yneg

So just scribe the same two times =)

Answer 1

[the cyclist]

See this example from the documentation for errorbar.

[Nik Rocky]

Yes, thank you! I solve it by writing two time a values for xpos and xneg, ypos and yneg =)