Unable to Run WFDB Demo on MATLAB Online

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Johnson Jui-Wei
Johnson Jui-Wei 2025-11-20，6:55
编辑： Johnson Jui-Wei 2025-11-20，7:02
Dear all,
I installed wfdb-app-toolbox-0-10-0 toolbox on MATLAB online with the configuration as follows:
MATLAB_VERSION: '25.2.0.3055257 (R2025b) Update 2'
inOctave: 0
WFDB_VERSION: '[10.5.25]'
WFDB_JAVA_HOME: ' /MATLAB Drive/mcode/'
WFDB_NATIVE_BIN: ' /MATLAB Drive/mcode/nativelibs/linux/'
EXECUTING_DIR: ' null'
osName: 'linux'
fullOsName: ' Linux'
osArch: ' amd64'
customArchFlag: ' false'
OSVersion: ' 6.8.0-1024-aws'
JVMVersion: ' 1.8.0_292]'
MATLAB_PATH: '/MATLAB Drive/mcode/'
WFDB_JAVA_VERSION: 'wfdb-app-JVM7-0-10-0.jar'
DEBUG_LEVEL: 0
NETWORK_WAIT_TIME: 1000
MATLAB_ARCH: 'glnxa64'
WFDB_PATH: '. /MATLAB Drive/mcode/../database/ http://physionet.org/physiobank/database/'
WFDBCAL: ' /MATLAB Drive/mcode//database/wfdbcal'
WFDB_CUSTOMLIB: 0
CACHE_SOURCE: 'http://physionet.org/physiobank/database/'
CACHE_DEST: '/MATLAB Drive/mcode/../database/'
CACHE: 1
When I tried to run wfdbdemo the following error keeps coming up, even if 'mitdb/100' dataset has been downloaded into the "database" folder:
Error using rdsamp (line 203)
Could not find record: mitdb/100. Search path is set to: '. /MATLAB Drive/mcode/../database/ http://physionet.org/physiobank/database/'
I found similar questions in the following links but still failed to work out my problems (e.g., by manually setting WFDB_PATH to 'MATLAB Drive/database'):
How can I read local ecg file using wfdb app? - MATLAB Answers - MATLAB Central
Difficulties with WFDB toolkit in Matlab - MATLAB Answers - MATLAB Central
Can anyone give me some helps? Thanks.
Sincerely,
Johnson

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