FW: Polhemus

Mon May 27 15:32:26 UTC 2013

That worked! Great, thanks!

Am Samstag, 25. Mai 2013 22:35:31 UTC+2 schrieb Paul Groot:
>
> I don't know anything about polhemus or the datacapture function, but it 
> sounds like this function generates a lot of output in the matlab command 
> window. You can capature this into a dummy variable by using evalc:
>
> x = MatLab.Execute("dummy=evalc('dataCapture;');")
>
>
> Mind the single and double quotes)
>
> best
> Paul
>
>
> On 25 May 2013 19:53, Tobias <tobi... at gmail.com <javascript:>> wrote:
>
>> Thanks for all the help.
>>
>> I have successfully implemented Polhemus in E-Prime.
>>
>> There is only one problem left: When a lot of data is recorded, which is 
>> not unusual for longer movements of particpants, the string becomes too 
>> long for E-Prime.
>>
>> I use this function:
>>
>> x = MatLab.Execute("dataCapture;")
>>
>> For longer recordings which makes data rather large the following error 
>> occurs:
>> "Error number 14: Out of string space"
>>
>> The thing is, I don't really need any of the recorded data for E-Prime. 
>> But I can't find a way to not have E-Prime import the data into the 
>> variable x.
>> Is there a way of executing MatLab function without forwarding data to 
>> Matlab?
>>
>> Best,
>> Tobias
>>
>> Am Montag, 13. Mai 2013 18:23:54 UTC+2 schrieb Paul Groot:
>>>
>>> Hi Tobias,
>>>
>>> More detailed information about matlab's COM interface can be found here:
>>> http://www.mathworks.nl/help/**matlab/call-matlab-com-**
>>> automation-server.html<http://www.mathworks.nl/help/matlab/call-matlab-com-automation-server.html>
>>>
>>> There are a few functions available to pass variables, character 
>>> array's, matrices and workspaces between the two applications, without the 
>>> need to convert strings. The execute command should be used to execute 
>>> scripts; not for passing variables (although you can do this off course). 
>>> Large objects (like bitmap images) could also be passed by using external 
>>> files (i.e. only passing the name of the created file).
>>>
>>> Best
>>> Paul
>>>
>>>
>>>
>>> On 13 May 2013 12:19, Tobias <tobi... at gmail.com> wrote:
>>>
>>>> Dear Paul,
>>>>
>>>> thanks a lot for this code. It works very well. There are some issued I 
>>>> have, though.
>>>>
>>>> From your script I understand that there are at least two ways of 
>>>> getting data from Matlab to E-Prime: Execute and getfullmatrix. Are there 
>>>> other ways?
>>>> Also, it seems that there is no way of transmitting a variable from 
>>>> E-Prime to Matlab, only string values such as "b = a + a".
>>>> Of course I could always use sth like 
>>>>
>>>> Result = MatLab.Execute(CStr(eprimeVar)**)
>>>>
>>>> If I wanted to get the variable eprimeVar from E-Prime to Matlab. But 
>>>> maybe there is an easier way?
>>>>
>>>> Best,
>>>> Tobias
>>>>
>>>>
>>>>
>>>> Am Dienstag, 7. Mai 2013 17:01:32 UTC+2 schrieb Paul Groot:
>>>>>
>>>>> I don't think eprime requires a special plugin like presentation, 
>>>>> because matlab can also be started as a so called COM server:
>>>>>
>>>>> Dim MatLab As Object
>>>>> Dim Result As String
>>>>> Dim MReal(1, 3) As Double
>>>>> Dim MImag(1, 3) As Double
>>>>>
>>>>> Set MatLab = CreateObject("Matlab.**Applicati**on")
>>>>>
>>>>> 'Executing other MATLAB commands
>>>>> Result = MatLab.Execute("surf(peaks)")
>>>>> Debug.Print Result 
>>>>>
>>>>> Result = MatLab.Execute("a = [1 2 3 4; 5 6 7 8]")
>>>>> Debug.Print Result 
>>>>>
>>>>> Result = MatLab.Execute("b = a + a ")
>>>>> Debug.Print Result 
>>>>>
>>>>> 'Bring matrix b into VB program
>>>>> MatLab.GetFullMatrix "b", "base", MReal, MImag
>>>>>
>>>>> Debug.Print MReal(1,0)
>>>>> Debug.Print MReal(1,1)
>>>>> Debug.Print MReal(1,2)
>>>>> Debug.Print MReal(1,3)
>>>>>
>>>>>
>>>>> The above will print the following to the Debug window:
>>>>>
>>>>> a =
>>>>>
>>>>>      1     2     3     4
>>>>>      5     6     7     8
>>>>>
>>>>>
>>>>>
>>>>> b =
>>>>>
>>>>>      2     4     6     8
>>>>>     10    12    14    16
>>>>>
>>>>>
>>>>> 10
>>>>> 12
>>>>> 14
>>>>> 16
>>>>>
>>>>> The matlab figure window won't be visible though...
>>>>>
>>>>> Best,
>>>>> Paul
>>>>>
>>>>>
>>>>>
>>>>> On 7 May 2013 16:26, David McFarlane <mcfa... at msu.edu> wrote:
>>>>>
>>>>>> Can you start your MATLAB script from a command line?  If so, then 
>>>>>> you might try using the E-Basic "Shell()" function, see that topic in the 
>>>>>> E-Basic Help facility.  For a user example of this, see 
>>>>>> http://support.pstnet.com/**foru****m/Topic1338-8-2.aspx<http://support.pstnet.com/forum/Topic1338-8-2.aspx>.  This still leaves a lot to be desired, and beyond that I have no idea.
>>>>>>
>>>>>> -----
>>>>>> David McFarlane
>>>>>> E-Prime training online:  http://psychology.msu.edu/**Wor****
>>>>>> kshops_Courses/eprime.aspx<http://psychology.msu.edu/Workshops_Courses/eprime.aspx>
>>>>>> Twitter:  @EPrimeMaster (https://twitter.com/**EPrimeMas****ter<https://twitter.com/EPrimeMaster>
>>>>>> )
>>>>>>
>>>>>> /----
>>>>>> Stock reminder:  1) I do not work for PST.  2) PST's trained staff 
>>>>>> take any and all questions at http://support.pstnet.com/e%**2D****
>>>>>> prime/support/login.asp<http://support.pstnet.com/e%2Dprime/support/login.asp>, and they strive to respond to all requests in 24-48 hours, so make full 
>>>>>> use of it.  3) In addition, PST offers several instructional videos on 
>>>>>> their YouTube channel (http://www.youtube.com/user/**P****STNET<http://www.youtube.com/user/PSTNET>).  4) If you do get an answer from PST staff, please extend the courtesy 
>>>>>> of posting their reply back here for the sake of others.
>>>>>> \----
>>>>>>
>>>>>>
>>>>>>
>>>>>> At 5/7/2013 10:08 AM Tuesday, Cognitology wrote:
>>>>>>
>>>>>>> Hi,
>>>>>>> Never heard of a way to interface matlab from E-Prime, I'd be 
>>>>>>> interested if anyone would have a way. Of course, you could compile from 
>>>>>>> within matlab and try to go from there, but I suspect the amount of effort 
>>>>>>> would really not be worth it. You could, of course, just forego e-prime and 
>>>>>>> try Psychtoolbox.
>>>>>>> Best,
>>>>>>> Michiel
>>>>>>>
>>>>>>> From: <mailto:e-p... at googlegroups.**c**o**m>e-p... at googlegroups.com[mailto:
>>>>>>> e-p... at googlegroups.**c**o**m] On Behalf Of Tobias
>>>>>>>
>>>>>>> Sent: 7. May 2013 13:31
>>>>>>> To: <mailto:e-p... at googlegroups.**c**o**m>e-p... at googlegroups.com
>>>>>>>
>>>>>>> Subject: Re: Polhemus
>>>>>>>
>>>>>>> To be more precisely: What I need to do is to start a matlab script 
>>>>>>> from E-Prime.
>>>>>>> "Presentation" has some plugin to connect with Matlab, but E-Prime 
>>>>>>> seems not to have that. But there may be another way...
>>>>>>>
>>>>>>> Am Montag, 6. Mai 2013 15:39:19 UTC+2 schrieb Tobias:
>>>>>>> Dear all,
>>>>>>>
>>>>>>> Does anyone have experience with running Polhemus Liberty (the 
>>>>>>> motion tracking system) with E-Prime?
>>>>>>>
>>>>>>> Best,
>>>>>>> Tobias
>>>>>>>
>>>>>>
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