Re: [ccp4bb] Merging data collected at two different wavelength

2012-01-20 Thread arka chakraborty
hanking you, > >> > >> Regards, > >> > >> ARKO > >> > >> On Thu, Jan 19, 2012 at 1:46 AM, Soisson, Stephen M < > stephen_sois...@merck.com> wrote: > >> But if we were to follow that convention we would have been stuck with > Mul

Re: [ccp4bb] Merging data collected at two different wavelength

2012-01-20 Thread Francis E Reyes
, or, quite >> simply, MuRDER. >> >> >> >> -Original Message- >> From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of Jacob >> Keller >> Sent: Wednesday, January 18, 2012 3:13 PM >> To: CCP4BB@JISCMAIL.AC.UK >> Sub

Re: [ccp4bb] Merging data collected at two different wavelength

2012-01-19 Thread arka chakraborty
But if we were to follow that convention we would have been stuck with >> Multi-wavelength Resonant Diffraction Experimental Results, or, quite >> simply, MuRDER. >> >> >> >> -Original Message----- >> From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.A

Re: [ccp4bb] Merging data collected at two different wavelength

2012-01-19 Thread James Holton
er Sent: Wednesday, January 18, 2012 3:13 PM To: CCP4BB@JISCMAIL.AC.UK <mailto:CCP4BB@JISCMAIL.AC.UK> Subject: Re: [ccp4bb] Merging data collected at two different wavelength This begs the question* whether you want the lemmings to understand you. One theory of langua

Re: [ccp4bb] Merging data collected at two different wavelength

2012-01-19 Thread arka chakraborty
bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of > Jacob Keller > Sent: Wednesday, January 18, 2012 3:13 PM > To: CCP4BB@JISCMAIL.AC.UK > Subject: Re: [ccp4bb] Merging data collected at two different wavelength > > This begs the question* whether you want the lemmings to understa

Re: [ccp4bb] Merging data collected at two different wavelength

2012-01-18 Thread Ethan Merritt
t; > > -Original Message- > From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of Jacob > Keller > Sent: Wednesday, January 18, 2012 3:13 PM > To: CCP4BB@JISCMAIL.AC.UK > Subject: Re: [ccp4bb] Merging data collected at two different wavelength > >

Re: [ccp4bb] Merging data collected at two different wavelength

2012-01-18 Thread Soisson, Stephen M
18, 2012 3:13 PM To: CCP4BB@JISCMAIL.AC.UK Subject: Re: [ccp4bb] Merging data collected at two different wavelength This begs the question* whether you want the lemmings to understand you. One theory of language, gotten more or less from Strunk and White's Elements of Style, is that the

Re: [ccp4bb] Merging data collected at two different wavelength

2012-01-18 Thread Jacob Keller
This begs the question* whether you want the lemmings to understand you. One theory of language, gotten more or less from Strunk and White's Elements of Style, is that the most important feature of language is its transparency to the underlying thoughts. Bad language breaks the transparency, remind

Re: [ccp4bb] Merging data collected at two different wavelength

2012-01-18 Thread Phoebe Rice
> >> Can I be dogmatic about this ? > >I wish you could, but I don't think so, because even though those >sources call it that, others don't. I agree with your thinking, but >usage is usage. And 10,000 lemmings can't be wrong?

Re: [ccp4bb] Merging data collected at two different wavelength

2012-01-18 Thread Jacob Keller
> Can I be dogmatic about this ? I wish you could, but I don't think so, because even though those sources call it that, others don't. I agree with your thinking, but usage is usage. > a SAD experiment is a single wavelength experiment where you are using the > anomalous/dispersive signals for ph

Re: [ccp4bb] Merging data collected at two different wavelength

2012-01-18 Thread Phil Jeffrey
Can I be dogmatic about this ? Multiwavelength anomalous diffraction from Hendrickson (1991) Science Vol. 254 no. 5028 pp. 51-58 Multiwavelength anomalous diffraction (MAD) from the CCP4 proceedings http://www.ccp4.ac.uk/courses/proceedings/1997/j_smith/main.html Multi-wavelength anomalous-

Re: [ccp4bb] Merging data collected at two different wavelength

2012-01-18 Thread Pete Meyer
Hi, Regardless of what the consensus on naming for the technique, I'd suggest you combine these datasets during phasing (I'm aware of MLPHARE, SHARP, PHASIT supporting multiple anomalous datasets during phasing; others probably do as well). Combining at the merging step (pointless/scalepack/

Re: [ccp4bb] Merging data collected at two different wavelength

2012-01-18 Thread Jacob Keller
That is excellent! You refer obviously to the multiple anomalous discussions on the bb? (Maybe d = disagreement?) JPK On Wed, Jan 18, 2012 at 11:42 AM, D Bonsor wrote: > Isn't it true that we cannot even agree on what MAD stands for? > > Is the following right? > > M = Multiple-wavelength. I thi

Re: [ccp4bb] Merging data collected at two different wavelength

2012-01-18 Thread Francis E Reyes
On Jan 18, 2012, at 10:20 AM, Tim Gruene wrote: > Comments on the comments ;-): Ditto > >> [...] >> >> By the way, I wouldn't use "MAD" to describe the mergeing of >> non-isomorphous datasets. > I agree, neither would I. > Just to be on the save side and avoid confusion by less experienced > r

Re: [ccp4bb] Merging data collected at two different wavelength

2012-01-18 Thread D Bonsor
Isn't it true that we cannot even agree on what MAD stands for? Is the following right? M = Multiple-wavelength. I think everyone agrees to this, although I believe I've seen the occasional (and sometime non-sensical) variant A = Anomalous (I think everyone agrees, although this term should reall

Re: [ccp4bb] Merging data collected at two different wavelength

2012-01-18 Thread Jacob Keller
> By the way, I wouldn't use "MAD" to describe the mergeing of non-isomorphous > datasets.  Strictly speaking, MAD is at least an attempt to measure both > anomalous (f") and dispersive (f') differences, and I don't think it is > appropriate to use the term "MAD" when you know the dispersive signal

Re: [ccp4bb] Merging data collected at two different wavelength

2012-01-18 Thread Tim Gruene
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Comments on the comments ;-): On 01/18/2012 05:54 PM, James Holton wrote: > [...] > An important thing that is not done automatically, however, is to check > if your space group has more than one indexing solution. Basically, if > merohedral twinning

Re: [ccp4bb] Merging data collected at two different wavelength

2012-01-18 Thread James Holton
How to merge two or more runs depends on the software you used to process the images. If you used MOSFLM/CCP4, then you would use the programs REBATCH (perhaps REINDEX) and SORTMTZ to combine the unmerged mtz files (the ones that come out of MOSFLM) before feeding them to SCALA. My program Sc

Re: [ccp4bb] Merging data collected at two different wavelength

2012-01-18 Thread Tim Gruene
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Dear Arko, could you not try MAD with the two different data sets? Otherwise you can check the strength of the anomalous signal for both sets separately (I am sure pointless prints the anomalous CC over resolution shell) and after merging them. If the

[ccp4bb] Merging data collected at two different wavelength

2012-01-18 Thread arka chakraborty
Hi all, I have two datasets, both CO SAD data, one collected at CO anomalous wavelength at synchroton and the other at home source. I wish to combine these two data-sets and use for SAD phasing. Can anyone suggest how this can be done? Regards, ARKO -- *ARKA CHAKRABORTY* *CAS in Crystallogra