Creating and Calling functions
1 回表示 (過去 30 日間)
古いコメントを表示
Hello,
I want to create a function that will take a data set, extract desired columns/rows , take their average and compute the difference.
I am new to this and I am not sure why I am getting errors, this is what I have so far. Does anyone know where I went wrong? I thought the function maybe should be the last line of my code, but that did not work either.
Also, as I have 20+ data sets I want to do this analysis on, can I do it on the same script or do I need a new different file?
Thank you!
%Create a functions that computes the averages of plateaus and difference between them.
function
data=readmatrix(x);
%extract desired rows and columns
x1=data(13911:111401,1);
y1=data(13911:111401,2);
x2=data(216399:1000015,1);
y2=data(216399:1000015,2);
Mx1= mean(x1,'all');
My1 = mean(y1,'all');
Mx2= mean(x2,'all');
My2 = mean(y2,'all');
mvd= (My2- My1);
end
0 件のコメント
回答 (1 件)
Walter Roberson
2021 年 5 月 26 日
function
data=readmatrix(x);
That needs to be on a single line.
Mx1= mean(x1,'all');
Using 'all' is not wrong, but it is unnecessary, as you are working with vectors.
Note that you compute the x means but you do not do anything with them.
Note that you do not return mvd, only data.
17 件のコメント
Walter Roberson
2021 年 6 月 7 日
dinfo = dir('tek*.csv');
filenames = {dinfo.name};
num_files = length(filenames);
results = zeros(num_files,5);
for K = 1 : length(filenames)
results(K,:) = computingmvdifference(filenames{K});
end
%Create a functions that computes the averages of plateaus and difference between them.
function results = computingmvdifference(x)
data = readmatrix(x);
%extract desired rows and columns
x1=data(13911:111401,1);
y1=data(13911:111401,2);
x2=data(216399:1000015,1);
y2=data(216399:1000015,2);
Mx1 = mean(x1,'all');
My1 = mean(y1,'all');
Mx2= mean(x2,'all');
My2 = mean(y2,'all');
mvd = (My2- My1);
results = [mvd, Mx1, My1, Mx2, My2];
end
After the code finishes, then
results(:,1) -- will be all of the mvd values
results(:,2) -- will be all of the Mx1 values
results(:,3) -- will be all of the My1 values
results(:,4) -- will be all of the Mx2 values
results(:,5) -- will be all of the My2 values
参考
カテゴリ
Help Center および File Exchange で Entering Commands についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!