ESS_GUIESS_GUI_DocsESS_GUI_batch_fittingESS_GUI_bumps_abstractionESS_GUI_iss1116ESS_GUI_iss879ESS_GUI_iss959ESS_GUI_openclESS_GUI_orderingESS_GUI_sync_sascalccostrafo411magnetic_scattrelease-4.1.1release-4.1.2release-4.2.2release_4.0.1ticket-1009ticket-1094-headlessticket-1242-2d-resolutionticket-1243ticket-1249ticket885unittest-saveload
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Last change
on this file since 9f391af was
59b9b675,
checked in by Jae Cho <jhjcho@…>, 14 years ago
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1) reverting diperser(used only in test) files for unittest. 2)changed the sigma of polydispersion to ratio for length parameters. 3) update an unittest
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Property mode set to
100644
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File size:
921 bytes
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| 1 | #if !defined(gaussian_h) |
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| 2 | #define gaussian_h |
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| 3 | |
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| 4 | /** Structure definition for Gaussian parameters. |
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| 5 | * The Gaussian is normalized to the 'scale' parameter. |
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| 6 | * |
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| 7 | * f(x)=scale * 1/(sigma^2*2pi)e^(-(x-mu)^2/2sigma^2) |
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| 8 | * |
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| 9 | * [PYTHONCLASS] = Gaussian |
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| 10 | * [DESCRIPTION] = <text>f(x)=scale * 1/(sigma^2*2pi)e^(-(x-mu)^2/2sigma^2)</text> |
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| 11 | */ |
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| 12 | typedef struct { |
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| 13 | /// Scale factor |
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| 14 | // [DEFAULT]=scale=1.0 |
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| 15 | double scale; |
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| 16 | /// Standard deviation |
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| 17 | // [DEFAULT]=sigma=1 |
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| 18 | double sigma; |
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| 19 | /// Center of the Gaussian distribution |
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| 20 | // [DEFAULT]=center=0.0 |
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| 21 | double center; |
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| 22 | } GaussianParameters; |
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| 23 | |
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| 24 | /// 1D scattering function |
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| 25 | double gaussian_analytical_1D(GaussianParameters *pars, double x); |
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| 26 | |
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| 27 | /// 2D scattering function |
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| 28 | double gaussian_analytical_2D(GaussianParameters *pars, double x, double phi); |
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| 29 | double gaussian_analytical_2DXY(GaussianParameters *pars, double x, double y); |
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| 30 | |
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| 31 | #endif |
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