Read data from matlab struct and merge

조회 수: 5 (최근 30일)
Curious Mind
Curious Mind 2020년 6월 29일
답변: Love Matlab 2020년 6월 29일
Hello, please I have multiple .mat files in a folder. Each one is a matlab struct called T and each T contains contains 2 files, p and s. 1. I want to load all the .mat files into matlab workspace, extract and concatenate only the second columns of all p in each of the files into a single matrix called M. 2. Extract and concatenate or merge the second row of all the s of all the files into a matrix called G.
  댓글 수: 4
Love Matlab
Love Matlab 2020년 6월 29일
편집: Love Matlab 2020년 6월 29일
what do you get when you do : load('FILE.mat') ? when you load each .mat file are you getting a structure or just a N x M matrix?
Curious Mind
Curious Mind 2020년 6월 29일
It comes out as a structure. Within the structure is a p and s

댓글을 달려면 로그인하십시오.

답변 (1개)

Love Matlab
Love Matlab 2020년 6월 29일
Try this. I am still confused about what you exactly what to extract. The cells P, and S after the for loop should contain all P and S data.
%% Select Folder with .mat files
folder = uigetdir(pwd) ; % select folder with images
files = dir(fullfile(folder,'*.mat')); %create structure with folder data
S = cell(1,length(files)); %create empty storage cells
P = cell(1,length(files));
for i = 1:length(files)
name = files(i).name ; %filename
x = load(name); %load.mat file
P{1,i} = [x.p]; %save all p data
S{1,i} = [x.s]; %save all s data
end
allP = cell2mat(P); %change to matrix
M = allP(2:2:end); %extract every 2nd variable (second column)
allS = cell2mat(S); %change to matrix
G = allS(2,:); %extract only the second row

카테고리

Help CenterFile Exchange에서 Data Type Identification에 대해 자세히 알아보기

제품


릴리스

R2019b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by