Find average of multiples lines
4 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
Hi All,
Having more trouble than I should finding the average line from 7 records. Each record is basically [T, (a-b)], where T is a common time interval (0:0.1:30) and (a-b) is the difference between two data sets (a-b, a-c, a-d, etc.).
I've designated each "difference" as such: diff, diff2, diff3, diff4, diff5, diff6, diff7. I am easily able to plot all of these records on the same plot. However, each method to find the mean of these lines fails. SO far, I have used mean([diff diff2, etc.],7). How do I go about finding the average for each common time point and then plot that?
Thanks.
7 commentaires
Bob Thompson
le 1 Fév 2018
Let me know if it works, and I can post as an official answer, or if you have some trouble shooting you can post your own answer.
Réponse acceptée
Greg
le 1 Fév 2018
Regarding the follow-up question found in the comments (NaN affecting the mean):
Use the 'omitnan' flag of the mean function (R2015a and newer):
%%%I wouldn't use "diff" as a variable name - it's a function
avg = mean([diff1, diff2, diff3, diff4, diff5, diff6, diff7],2,'omitnan');
2 commentaires
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Creating and Concatenating Matrices dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!