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Last modified by sndueste on 2025-09-08 15:36
From version 6.1
edited by sendels
on 2019-05-15 12:55
Change comment: There is no comment for this version
To version 5.1
edited by sendels
on 2019-05-15 12:53
Change comment: There is no comment for this version

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117 117  
118 118  * The FLASH DAQ system records the data in binary " {{code language="none"}}.raw{{/code}} " files.
119 119  ** [[reading the data via Matlab >>doc:FLASHUSER.Data Acquisition and controls.Data Access at FLASH (DAQ, gpfs,\.\.\.).Offline data analysis (DAQ).For experts\: many ways to get Data from the DAQ.How to Access the DAQ Using Matlab.WebHome]] works not for all data types equally well and needs precise knowledge of the desired Parameters (useful to have a quick look / preliminary analysis on few parameters).
120 -** Examples how to read from {{code language="none"}}.raw{{/code}} files can also be found in [[the user code collection>>doc:FLASHUSER.Collection of user codes]]
120 +** Examples how to read from {{code language="none"}}.raw{{/code}} files can also be found in [[the user code collection>>url:http://hasfweb.desy.de/bin/view/Setup/UserCodeCollection||shape="rect" class="twikiLink"]]
121 121  ** Note that the raw data is only accessible from certain computers within the DESY network and thus not very handy for offline analysis later on ...
122 122  
123 123  \\
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125 125  * To ease the data analysis we IN ADDITION provide //ON REQUEST// the data from the FLASH DAQ as HDF5 format
126 -** ONLINE HDF5s: To make efficient use of the HDF5 files for analysis during the beamtime and afterwards we provide a [[very useful tool (Beamtime Daq Access)>>doc:FLASHUSER.Beamtime DAQ Access]]. Using this tool (working for Python and Matlab) one can get the data of parameters per run or for specific bunch ID intervals etc. without having to care from which subset of HDF5 files the data is read ...
126 +** ONLINE HDF5s: To make efficient use of the HDF5 files for analysis during the beamtime and afterwards we provide a [[very useful tool (Beamtime Daq Access)>>url:http://hasfweb.desy.de/bin/view/Setup/BeamtimeDaqAccess||shape="rect" class="twikiLink"]]. Using this tool (working for Python and Matlab) one can get the data of parameters per run or for specific bunch ID intervals etc. without having to care from which subset of HDF5 files the data is read ...
127 127  ** Summary HDF5 files include complete runs. They will be put after the beamtime on the gpfs storage and are available from computers within DESY (for registered Beamtime participants) and also access
128 128  ** Intro to the [[HDF5 structure used at FLASH>>url:http://hasfweb.desy.de/bin/view/Setup/HDF5main||shape="rect" class="twikiLink"]]. This contains also a list of the most used Parameters saved at FLASH for analysis - including the HDF5 names, DOOCS and DAQ names ...
129 129  ** [[Short examples>>url:http://hasfweb.desy.de/bin/view/Setup/HDF5main#Samples_how_to_read_HDF5_with_Ma||shape="rect" class="twikiAnchorLink"]] and [[user provided examples>>url:http://hasfweb.desy.de/bin/view/Setup/UserCodeCollection||shape="rect" class="twikiLink"]] on how to read HDF5 in Matlab