How can I read a ".dat" and ".hea" file in to MATLAB?

161 ビュー (過去 30 日間)
DRISHYA S KUMAR P N
DRISHYA S KUMAR P N 2021 年 7 月 4 日
コメント済み: Michelle Gee 2024 年 12 月 1 日
Currently i am working on project which use Photo Plythismo Graph (ppg). But the data is in .dat and .hea format.
I am looking a code to get a visualize view of these PPG.
If anyone have any idea about this please add a comment on this post. Your help would be greatly appreciate and it really help my project.
  5 件のコメント
Levan
Levan 2024 年 11 月 27 日
@Michelle Gee could you maybe also help me with Physionet?
Is there a chance that the wget corrupts the .hea format?
Is there a limit how much data can be downloaded in one go? Should the folders be partitioned? Is there a more secure method of downloading said data?
So does rdsamp ignore the https://physionet.org/files portion? And if files had multiple sub-folders, would a for loop where they are being interchange work or do I need to name them one at a time? and for instance if the code is on dekstop while https://physionet.org/files/ is in another folder, would it still work or do they have to be in the space workspace?
Michelle Gee
Michelle Gee 2024 年 12 月 1 日
Hi Levan,
I was using this data set (https://physionet.org/content/rvmh1/1.0.0/) and did not notice any issues with corrupted .hea files.
I was able to work with about 5 patient files at a time, but I'm guessing that is mostly a function of the computer you're using. I did not partition the folders and have not looked into more secure methods of downloading the data.
I think rdsamp just has the https://physionet.org/files portion built into the function. You don't need to have the files on your local machine because rdsamp pulls them from the website. Sorry I can' t be of more help, but I didn't try any of the things you're asking about since the dataset I was interested in does not have subfolders.

サインインしてコメントする。

回答 (2 件)

Andrea Nemcova
Andrea Nemcova 2021 年 9 月 7 日
Hello,
I am one of the authors of this database and I am glad you chose the BUT PPG database for your research. May I ask you what is your research dealing with?
More information about the database is included in this brand new article: https://www.hindawi.com/journals/bmri/2021/3453007/ .
The data are in standard WFDB format (very common on Physionet). This format (including .dat and .hea) can be read using WFDB toolbox https://archive.physionet.org/physiotools/matlab/wfdb-app-matlab/ .
I hope this helps. If you have any further question, feel free to ask.
Best regards,
Andrea Nemcova

Monika Jaskolka
Monika Jaskolka 2021 年 7 月 4 日
To import dat files I use the mdfimport tool found on the Matab File Exchange

カテゴリ

Help Center および File ExchangeLarge Files and Big Data 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!

Translated by