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Inconvenient work of eprload with MS5000 xml files
Posted: Wed May 12, 2021 1:52 am
by katarkon
I have found that standard xml readed by eprloadoutput file contains relatively roughly rounded values (4 signs after decimal points). Initial xml file contains more precision values in the field like <Measurement Name="Cudppeth_05_tmp_-43C" Device="MS-5000 [11-0273]" FWV="FW master: 10.0.6
FW slavemw: 10.1.2
FW slavebf: 10.0.4
FW slaveiq: 10.0.0" SWV="ESRStudio 1.74.4" Timestamp="2021-04-29T12:19:40.5555133+03:00" MwFreq="9.47201614223679" GonAngle="0" Temperature="-43.2197937011719" Concentration="0" ConcentrationUnit="" XDatasource="BField" XUnit="mT" YDatasource="MW_Absorption" YUnit="" Mode="Vis" Mass="0" SampleDiameter="0" SampleHeight="0" SpinConcentration="0" SpinCount="0" SpinsPerMole="0" TotalElectronSpin="0" MarkerAmplitude="NaN" MarkerPosition="NaN" NonMarkerAmplitude="1244.48715902379" AmbientTemperature1="0" AmbientTemperature2="0" AmbientHumidity="0" QFactor="-1" Phase="0" FilterPrm0="0.03" FilterType="DIG">
Can I hope the function eprload will extract more precision data or I have to write my own parcer for MS5000 xml files?
Re: Inconvenient work of eprload with MS5000 xml files
Posted: Wed May 19, 2021 12:55 pm
by Stefan Stoll
Please post the xml file you are trying to load. Which quantities are you referring to, magnetic-field values or microwave frequency?
Re: Inconvenient work of eprload with MS5000 xml files
Posted: Thu May 20, 2021 2:14 am
by katarkon
There is the example of the xml file.
I've additionally found that the private function xml2struct.p give expected results.
Re: Inconvenient work of eprload with MS5000 xml files
Posted: Thu May 20, 2021 4:44 pm
by Stefan Stoll
If you a referring to the field and spectral values in that file, then I don't see anything wrong:
Code: Select all
>> [B,spc,par] = eprload('Cudppeth_05_tmp_-3C.xml');
>> format long % turn on full-length display of numbers
>> B(1:5)
ans =
1.0e+02 *
3.320003099942436
3.320011239453875
3.320019378965315
3.320027518476755
3.320035657988194
>> spc(1:5)
ans =
-0.991538610927996
-1.232134389237260
-1.581659094930004
-2.026221140079262
-2.554633473447652
Re: Inconvenient work of eprload with MS5000 xml files
Posted: Thu May 20, 2021 11:19 pm
by katarkon
>> [x,y,p]=eprload('Cudppeth_05_tmp_-3C.xml');
disp(p.MwFreq) gives an answer 9.4719.
>> par=xml2struct('Cudppeth_05_tmp_-3C.xml');
disp(par.ESRXmlFile.Data.Measurement.Attributes.MwFreq) gives correct answer 9.47186304271149.
Re: Inconvenient work of eprload with MS5000 xml files
Posted: Thu May 20, 2021 11:26 pm
by Stefan Stoll
Ah, I see the issue now. par.MwFreq is a number, so you need the proper setting of format to get all the digits displayed. In contrast, par.ESRXmlFile.Data.Measurement.Attributes.MwFreqis a string.
Here is an example of how the format setting affect display of numbers:
Code: Select all
>> a = sqrt(2);
>> format short
>> a
a =
1.4142
>> format long
>> a
a =
1.414213562373095
Re: Inconvenient work of eprload with MS5000 xml files
Posted: Wed May 26, 2021 12:38 am
by katarkon
Thanks for explanation. It's indeed true.