Tomas & Lindsay,

MzXMLReadTask is assuming a precision of 32 bits for some reason. This file
has 64 bit precision and so the data is being garbled by the import. I have
attached a patch which should remedy this problem. The mzdata and MzML
readers appear to check the precision value properly.

Thomas McGrew
Data Analyst/Programmer
Bindley Bioscience Center @ Purdue University



On Sun, Jun 12, 2011 at 9:55 PM, Lindsay Edwards <[email protected]>wrote:

> Hi Tomas,
>
> Here's one:
>
> http://dl.dropbox.com/u/1998606/7053.mzXML.mzxml
>
> The file was generated using Thermo Xcalibur.
>
> L.
>
> _________
>
>
>
> *Dr Lindsay Edwards MSc DPhil (Oxon) MSB
> *____________________________________________
> Lecturer and Theme 5 Coordinator | *University of Tasmania *School of
> Medicine
> Honorary Member and Fellow | *Menzies Research Institute*
> Visiting Researcher | *University of Oxford*
> *Private Bag 34, Medical Sciences 1, Hobart 7001, TAS*
> *Ph: *+61 (3) 6226 2677     *Email:* *[email protected]*
> *PubMed - "Edwards L AND (Clarke K OR Jobson S)"*
> **_____________________________________________
>
> On 13/06/2011, at 10:15 AM, Tomas Pluskal wrote:
>
> Hi Lindsay,
>
> Can you please send an example of such mzXML file?
> What software did you use to produce the mzXML?
>
> Best regards,
>
> Tomas
>
> On Jun 12, 2011, at 5:43 AM, Lindsay Edwards wrote:
>
> I am trying to analyse data from our Orbitrap using mzMine.
>
> When loading mzXML files, it looks as thought the m/z and intensity data
> have got scrambled (screenshot attached).
>
> FYI, the data is centroided. Any ideas how to get round this?
>
> In the meantime I am going to load RAW files using mzMine running on
> Virtual Box.
>
> Thanks for your help,
>
> Lindsay.
>
>
>           --
> Dr Lindsay Edwards MSc DPhil (Oxon) MSB
> Lecturer in Biomedical Science, School of Medicine
> University of Tasmania
> Visiting Researcher, University of Oxford
> *Email:* [email protected]
> *Ph: *+61 (3) 6226 2677
> <http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?dispmax=50&db=PubMed&cmd=Search&term=Edwards-L%20AND%20(Jobson-S%20OR%20Clarke-K)&doptcmdl=DocSum>
> *Mail: Private Bag 34, Medical Sciences 1*
> Hobart 7000, Tasmania
> PubMed - "Edwards L AND (Clarke K OR Jobson S)"
>
> <Screen shot 2011-06-12 at 6.42.24 AM.png>
>
>
>
>
>
>
>
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>
>  ===============================================
> Tomas Pluskal
> G0 Cell Unit, Okinawa Institute of Science and Technology
> 1919-1 Tancha, Onna-son, Okinawa 904-0412, Japan
> TEL:  +81-98-966-8684
>
>
>
>
>
>
>
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Attachment: mzmine_mzxml_fix.patch
Description: Binary data

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