Averaging multiple structures of different lengths

Hello,

Here is my error message:

Error using horzcat

Dimensions of arrays being concatenated are not consistent.

Error using sum

Dimension argument must be a positive integer scalar, a vector of unique positive integers, or 'all'.

Error in mean (line 127)

y = sum(x, dim, flag) ./ mysize(x,dim);

Here is the script through which I am receiving this message:

a=calc_splitbelt('CSB_YA001_control0008', slowleg)

b=calc_splitbelt('CSB_YA001_control0009',slowleg)

(This produces a as a 1x1 with 14 fields, and b as a 1x1 structure with 14 fields).

Then, I want to take the average StepLengthSym (one of the fields) of both a and b, so my script continues with

c=[a.StepLengthSym b.StepLengthSym]

Avgc=mean(c)

a.StepLengthSym and b.StepLengthSym are different lengths, which I know is what is producing the horzcat error.

Is there a way I can edit this to make it so that I am able to take the average StepLengthSym for both a and b even though those fields are different lengths? TIA

Answer 1

[Voss]

This will combine a.StepLengthSym and b.StepLengthSym into a single column vector c that you can then take the average of:

c = [a.StepLengthSym(:); b.StepLengthSym(:)];
Avgc = mean(c);

[Marisa Mulvey]

Thank you so much! That worked!

[Voss]

Excellent! Can you please mark the answer as 'Accepted'? Thanks!

[Marisa Mulvey]

Yes just did! Thanks

[Voss]

Thank you! I appreciate it