Hi Michela,
the warnings are pointing at thye problem, and the solution: "make
'span' larger". You specified a span or 0.03, so only 3% of the spots
are used to infer the trend, and at least in some areas (as
indicated), there are too few spots, so the warning suggests you
increase the 'span' parameter to get a better estimate.
Try span=0.3, or higher if you need. The max is span=1, where *all*
the spots are considered.
Jose
Quoting Ballardini Michela <m.ballardini at="" ior-forli.it="">:
> Hello,
>
> I have a problem with the package MANOR.
>
>
>
> I import a ?default? file and I use R 2.5.0 version.
>
> This is the output when I try to estimate the spatial trend:
>
>
>
>> arrayABTrend <- arrayTrend(arrayAB, "LogRatio", span=0.03,
degree=1,
>
> + iterations=3, family="symmetric")
>
> Errore: NA/NaN/Inf in chiamata a funzione esterna (arg 1)
>
> Inoltre: Ci sono 50 o pi? avvisi (usare warnings() per leggere i
primi 50)
>
>>
>
>> warnings()
>
> Messaggi di avvertimento:
>
> 1: at 0.98503 0.51586
>
> 2: radius 0.00057507
>
> 3: all data on boundary of neighborhood. make span bigger
>
> 4: pseudoinverse used at 0.98503 0.51586
>
> 5: neighborhood radius 0.023981
>
> 6: reciprocal condition number -1.#IND
>
> 7: at 4.0151 0.51586
>
> 8: radius 0.00057507
>
> 9: all data on boundary of neighborhood. make span bigger
>
> 10: There are other near singularities as well. 0.00057507
>
> 11: at 0.98503 4.2953
>
> 12: radius 0.00057507
>
> 13: all data on boundary of neighborhood. make span bigger
>
> 14: at 4.0151 4.2953
>
> 15: radius 0.00057507
>
> 16: all data on boundary of neighborhood. make span bigger
>
> 17: at 0.98503 2.1383
>
> 18: radius 0.00022501
>
> 19: all data on boundary of neighborhood. make span bigger
>
> 20: at 4.0151 2.1383
>
> 21: radius 0.00022501
>
> 22: all data on boundary of neighborhood. make span bigger
>
> 23: at 3.0001 0.51586
>
> 24: radius 0.00035006
>
> 25: all data on boundary of neighborhood. make span bigger
>
> 26: zero-width neighborhood. make span bigger
>
> 27: zero-width neighborhood. make span bigger
>
> 28: at 2.0001 4.2953
>
> 29: radius 0.00035006
>
> 30: all data on boundary of neighborhood. make span bigger
>
> 31: at 2.0001 0.51586
>
> 32: radius 0.00035006
>
> 33: all data on boundary of neighborhood. make span bigger
>
> 34: zero-width neighborhood. make span bigger
>
> 35: at 4.0151 1.0691
>
> 36: radius 0.00022501
>
> 37: all data on boundary of neighborhood. make span bigger
>
> 38: at 0.98503 3.2074
>
> 39: radius 0.00022501
>
> 40: all data on boundary of neighborhood. make span bigger
>
> 41: zero-width neighborhood. make span bigger
>
> 42: at 4.0151 3.2074
>
> 43: radius 0.00022501
>
> 44: all data on boundary of neighborhood. make span bigger
>
> 45: at 0.98503 1.0691
>
> 46: radius 0.00022501
>
> 47: all data on boundary of neighborhood. make span bigger
>
> 48: zero-width neighborhood. make span bigger
>
> 49: at 4.0001 0.51586
>
> 50: radius 0.00035006
>
>
>
> Can you explain me what can I do to resolve the problem, please?
>
>
>
> Michela
>
>
>
> *************************************************
>
> Michela Ballardini
>
> Unit? di Biostatistica e Sperimentazioni Cliniche - Pad. Valsalva
>
> c/o OSP. MORGAGNI-PIERANTONI
>
> Via Forlanini, 34
>
> 47100 Forl?
>
> Tel. (+39) 0543.731836
>
> Fax (+39) 0543.731612
>
> *************************************************
>
>
>
>
> [[alternative HTML version deleted]]
>
>
--
Dr. Jose I. de las Heras Email: J.delasHeras at
ed.ac.uk
The Wellcome Trust Centre for Cell Biology Phone: +44 (0)131
6513374
Institute for Cell & Molecular Biology Fax: +44 (0)131
6507360
Swann Building, Mayfield Road
University of Edinburgh
Edinburgh EH9 3JR
UK
