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1. Bias-Free Parameter Estimation with Few Counts, by Iterative Chi-Squared
... We demonstrate through numerical simulations that model parameters estimated with our technique are essentially bias-free, even when the average number of counts per bin is 1. ... The IW technique avoids such biases by estimating through successive iterations, where for each iteration, j, , and the best-fit parameters are determined by minimization of . ... In our sample, we find that the minimum values and best-fit parameters converge after about 6 iterations. ...
[ Сохраненная копия ]  Ссылки http://www.adass.org/adass/proceedings/adass94/kearnsk.html -- 12.3 Кб -- 03.11.2000
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2. Uses of Class ij.gui.Roi (ImageJ API)
... Class . Use . ... Packages that use Roi . ... ImagePlus. roi . Methods in ij that return Roi . Roi . ... Methods in ij with parameters of type Roi . void . ... A subclass of ij.gui.Roi (2D Regions Of Interest) implemented in terms of java.awt.Shape. class . ... Methods in ij.gui with parameters of type Roi . ... Methods in ij.measure with parameters of type Roi . ... Methods in ij.plugin with parameters of type Roi . ... Methods in ij.plugin.filter with parameters of type Roi . ...
[ Сохраненная копия ]  Ссылки http://www.astro.louisville.edu/software/astroimagej/imagej/api/ij/gui/class-use/Roi.html -- 36.7 Кб -- 02.12.2010
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3. The AstroStat Slog parameter estimation
... Posts tagged ?parameter estimation? ... Leccardi & Molendi (2007) have a paper in A&A ( astro-ph/0705.4199 ) discussing the biases in parameter estimation when spectral fitting is confronted with low counts data. Not surprisingly, they find that the bias is higher for lower counts, for standard chisq compared to C-stat, for grouped data compared to ungrouped. ... Tags: bias , C-stat , chi-square , chisq , Cstat , Fitting , parameter estimation , Peter Freeman , spectra . ... 1 Comment . ...
[ Сохраненная копия ]  Ссылки http://hea-www.harvard.edu/AstroStat/slog/groundtruth.info/AstroStat/slog/tag/parameter-estimation/index.html -- 20.6 Кб -- 01.03.2014
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4. SCL Sfit Genetic Commands
... sfit . ... commands . scl . ... Define parameters for controlling performance of genetic algorithm . ... generations . The maximum number of generations the program will go through, before stopping, if the solution is not within the given tolerance. 10 . ... The number of parents randomly generated in the first generation, and in each subsequent generation. 50 . ... This is multiplied by the number of parameters being varied to give the total string length for each parent. 16 . ... elitism . ...
[ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/~csj/software_store/guide/scl_gen.html -- 7.9 Кб -- 30.08.2007
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5. Stellarium: SphereParams Struct Reference
... SphereParams Struct Reference . ... SphereParams (const float radius) . ... Definition at line 50 of file StelGeometryBuilder.hpp . ... Definition at line 103 of file StelGeometryBuilder.hpp . ... Definition at line 120 of file StelGeometryBuilder.hpp . ... Definition at line 112 of file StelGeometryBuilder.hpp . ... Definition at line 118 of file StelGeometryBuilder.hpp . ... Definition at line 110 of file StelGeometryBuilder.hpp . ... Definition at line 114 of file StelGeometryBuilder.hpp . ...
[ Сохраненная копия ]  Ссылки http://astro.uni-altai.ru/~aw/stellarium/api/structSphereParams.html -- 23.3 Кб -- 28.02.2014
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6. what to do with the trace data
... Here is a sample parameter file that is set to plot the B filter trace data. ... One can generally get by with the default graph parameters. input = B.a list of images or list files to be graphed (wx1 = 3000.) left world x-coord if not autoscaling ... autoscaling (wy2 = 100.) upper world y-coord if not autoscaling (wcs = logical ) Coordinate system for images (axis = 1) axis along which projection is to be taken (transpose = no) transpose the x and y axes of the plot (pointmode = no) ...
[ Сохраненная копия ]  Ссылки http://www.apo.nmsu.edu/Instruments/filters/tracehelp.html -- 4.8 Кб -- 22.02.2001
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7. Conformance: requirements and recommendations
... SGML . The text/html content type . In this section, we begin the specification of HTML 4.0, starting with the contract between authors, documents, users, and user agents. ... These recommendations are not normative and conformance with this specification does not depend on their realization. ... An HTML document is an SGML document that meets the constraints of this specification. ... A user is a person who interacts with a user agent to view, hear, or otherwise use a rendered HTML document. ...
[ Сохраненная копия ]  Ссылки http://xray.sai.msu.ru/~ustiansk/web/conform.html -- 12.1 Кб -- 24.04.1998
[ Сохраненная копия ]  Ссылки http://crydee.sai.msu.ru/~vab/html.doc/html40/conform.html -- 12.1 Кб -- 24.04.1998
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8. Results of measurements of SRT antenna parameters in Pushchino
... 18-1 74 40.5 0.52 Cas A . 18-1 75 38.5 0.49 Cyg A . ...
[ Сохраненная копия ]  Ссылки http://www.asc.rssi.ru/RadioAstron/archives/2004/month_notic/res_push.html -- 9.1 Кб -- 03.11.2011
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