Diff [~,config] vs [isloaded,config] from wfdbloadlib(...)?

[sami10007]

System: OS X 10.11.4, WFDB 0-9-10.

Command 1

[~,config]=wfdbloadlib(debugLevel, networkWaitTime);

which sometimes gives output

Apr 27, 2016 5:22:30 PM org.physionet.wfdb.Wfdbexec gen_exec_arguments
FINEST: 
    ***commandInput.add = /Users/masi/myCode/nativelibs/macosx/bin/wfdb-config
Apr 27, 2016 5:22:30 PM org.physionet.wfdb.Wfdbexec setLauncher

...

Running many times solves the issue. Parameter config struct of configuration parameters.
I am not sure what where ~ refers to, but it does not seem to boolean like in Command 2, and not home directory. Command 2

[isloaded,config]=wfdbloadlib(debugLevel, networkWaitTime);

No such behaviour (weak evidence, since few trials). Expected behaviour isloaded boolean. Parameter config struct of configuration parameters.

Complications

I get similar outputs then in many other environments, for instance the following

[sig, Fs, tm1]=rdsamp(strcat('mitdb/',num2str(patient)),channel,N0,rawUnits); 

Output

Apr 27, 2016 5:35:20 PM org.physionet.wfdb.Wfdbexec <init>
FINEST: 
    ***Setting exec commandName to: /Users/masi/code/mcode/nativelibs/macosx/bin/rdsamp
Apr 27, 2016 5:35:20 PM org.physionet.wfdb.Wfdbexec setWFDB_PATH
FINEST: 

....

I think this complication can be a sign of a general problem.

---

What is the difference between [~,config] vs [isloaded,config] from wfdbloadlib(...)?

[ikarosilva]

Hi  [~,config]=wfdbloadlib(debugLevel, networkWaitTime);

The ~ is a dummy variable that MATLAB uses to to discard unwanted outputs in functions returning multiple outputs (similar to "_" in Python.

-Ikaro

On Wednesday, April 27, 2016 10:34 AM, Sami L. <notifications@github.com> wrote:

Command 1[~,config]=wfdbloadlib(debugLevel, networkWaitTime);
which sometimes give outputApr 27, 2016 5:22:30 PM org.physionet.wfdb.Wfdbexec gen_exec_arguments
FINEST:
***commandInput.add = /Users/masi/myCode/nativelibs/macosx/bin/wfdb-config
Apr 27, 2016 5:22:30 PM org.physionet.wfdb.Wfdbexec setLauncher

...
Running many times solves the issue. Parameter config struct of configuration parameters.
I am not sure what where ~ refers to, but it does not seem to boolean like in Command 2, and not home directory. Command 2[isloaded,config]=wfdbloadlib(debugLevel, networkWaitTime);
No such behaviour (weak evidence, since few trials). Expected behaviour isloaded boolean. Parameter config struct of configuration parameters. What is the difference between [~,config] vs [isloaded,config] from wfdbloadlib(...)?—
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[sami10007]

Yes, that I thought. I can now reproduce the error messages with [isloaded,config]. I get the error after each restart of Matlab, inspite of dummy variable or not. Complete error message

Apr 28, 2016 4:09:01 PM org.physionet.wfdb.Wfdbexec gen_exec_arguments
FINEST: 
    ***commandInput.add = /Users/masi/myCode/mcode/nativelibs/macosx/bin/wfdb-config
Apr 28, 2016 4:09:01 PM org.physionet.wfdb.Wfdbexec setLauncher
FINER: 
    ***setting: DYLD_LIBRARY_PATH: /Users/masi/myCode/mcode/nativelibs/macosx/bin:/Users/masi/myCode/mcode/nativelibs/macosx/lib64:/Users/masi/myCode/mcode/nativelibs/macosx/lib:/Applications/MATLAB_R2016a.app/sys/os/maci64:/Applications/MATLAB_R2016a.app/bin/maci64/../../Contents/MacOS:/Applications/MATLAB_R2016a.app/bin/maci64:/Applications/MATLAB_R2016a.app/extern/lib/maci64:/Applications/MATLAB_R2016a.app/runtime/maci64:/Applications/MATLAB_R2016a.app/sys/java/jre/maci64/jre/lib/./native_threads:/Applications/MATLAB_R2016a.app/sys/java/jre/maci64/jre/lib/./server:/Applications/MATLAB_R2016a.app/sys/java/jre/maci64/jre/lib/./lib/jli
Apr 28, 2016 4:09:01 PM org.physionet.wfdb.Wfdbexec setLauncher
FINER: 
    ***setting: MacOs PATH: /Users/masi/myCode/mcode/nativelibs/macosx/bin:/Users/masi/myCode/mcode/nativelibs/macosx/lib64:/Users/masi/myCode/mcode/nativelibs/macosx/lib:/Applications/MATLAB_R2016a.app/sys/os/maci64:/Applications/MATLAB_R2016a.app/bin/maci64/../../Contents/MacOS:/Applications/MATLAB_R2016a.app/bin/maci64:/Applications/MATLAB_R2016a.app/extern/lib/maci64:/Applications/MATLAB_R2016a.app/runtime/maci64:/Applications/MATLAB_R2016a.app/sys/java/jre/maci64/jre/lib/./native_threads:/Applications/MATLAB_R2016a.app/sys/java/jre/maci64/jre/lib/./server:/Applications/MATLAB_R2016a.app/sys/java/jre/maci64/jre/lib/./lib/jli
Apr 28, 2016 4:09:01 PM org.physionet.wfdb.Wfdbexec setLauncher
FINEST: 
    ***Setting executing process with command and arguments: [/Users/masi/myCode/mcode/nativelibs/macosx/bin/wfdb-config, --version]
Apr 28, 2016 4:09:01 PM org.physionet.wfdb.Wfdbexec execToStringList
FINE: 
    ***Executing Launcher with commandInput :   [/Users/masi/myCode/mcode/nativelibs/macosx/bin/wfdb-config, --version]
Apr 28, 2016 4:09:01 PM org.physionet.wfdb.Wfdbexec execToStringList
FINER: 
    ***Starting exec process...
Apr 28, 2016 4:09:01 PM org.physionet.wfdb.Wfdbexec execToStringList
FINER: 
    ***Creating read buffer and waiting for exec process...
Apr 28, 2016 4:09:01 PM org.physionet.wfdb.Wfdbexec execToStringList
FINEST: 
    ***Waiting for data stream from launcher...
Apr 28, 2016 4:09:01 PM org.physionet.wfdb.Wfdbexec execToStringList
FINEST: 
    ***A was stream initialized, checking if data or err...
Apr 28, 2016 4:09:01 PM org.physionet.wfdb.Wfdbexec execToStringList
FINEST: 
    ***Reading output: 
10.5.24
Apr 28, 2016 4:09:01 PM org.physionet.wfdb.Wfdbexec getEnvironment
FINER: 
    ***WFDB_JAVA_HOME: /Users/masi/myCode/mcode/
Apr 28, 2016 4:09:01 PM org.physionet.wfdb.Wfdbexec getEnvironment
FINER: 
    ***WFDB_NATIVE_BIN: /Users/masi/myCode/mcode/nativelibs/macosx/
Apr 28, 2016 4:09:01 PM org.physionet.wfdb.Wfdbexec getEnvironment
FINER: 
    ***Exec dir: null
Apr 28, 2016 4:09:01 PM org.physionet.wfdb.Wfdbexec getEnvironment
FINER: 
    ***OS: macosx
Apr 28, 2016 4:09:01 PM org.physionet.wfdb.Wfdbexec getEnvironment
FINER: 
    ***fullOsName: Mac OS X
Apr 28, 2016 4:09:01 PM org.physionet.wfdb.Wfdbexec getEnvironment
FINER: 
    ***OS Arch: x86_64
Apr 28, 2016 4:09:01 PM org.physionet.wfdb.Wfdbexec getEnvironment
FINER: 
    ***customArchFlag: false
Apr 28, 2016 4:09:01 PM org.physionet.wfdb.Wfdbexec getEnvironment
FINER: 
    ***OS Version: 10.11.4
Apr 28, 2016 4:09:01 PM org.physionet.wfdb.Wfdbexec getEnvironment
FINER: 
    ***JVM Version: 1.7.0_75
Apr 28, 2016 4:09:01 PM org.physionet.wfdb.Wfdbexec <init>
FINEST: 
    ***Setting exec commandName to: /Users/masi/myCode/mcode/nativelibs/macosx/bin/rdsamp
Apr 28, 2016 4:09:01 PM org.physionet.wfdb.Wfdbexec setWFDB_PATH
FINEST: 
    ***Setting WFDB to: . /Users/masi/myCode/mcode/../database/ http://physionet.org/physiobank/database/
Apr 28, 2016 4:09:01 PM org.physionet.wfdb.Wfdbexec setWFDBCAL
FINEST: 
    ***Setting WFDBCAL to:  /Users/masi/myCode/mcode//database/wfdbcal
Error using javaObject
No class org.physionet.wfdb.jni.Rdsamp can be located on the Java class path

Error in rdsamp (line 114)
    javaWfdbRdsamp=javaObject('org.physionet.wfdb.jni.Rdsamp');

Error in make_code (line 80)
[sig, Fs, tm1]=rdsamp(strcat('mitdb/',num2str(patient)),channel,N0,rawUnits); % plot(tm,sig);

I extended the case about restoring the system without changing directory in OS X in the ticket #123, to keep focus here.

---

How to proceed further in such a broken installation of wfdb?

[ikarosilva]

Duplicate of #121