MtkRegressionCoeffCalc.c File Reference

#include "MisrRegression.h"
#include "MisrUtil.h"
#include <stdlib.h>
#include <math.h>

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Functions
MTKt_status	MtkRegressionCoeffCalc (const MTKt_DataBuffer *Data1, const MTKt_DataBuffer *Valid_mask1, const MTKt_DataBuffer *Data2, const MTKt_DataBuffer *Data2_sigma, const MTKt_DataBuffer *Valid_mask2, const MTKt_MapInfo *Map_info, int Regression_size_factor, MTKt_RegressionCoeff *Regression_coeff, MTKt_MapInfo *Regression_coeff_map_info)
	Calculate linear regression coefficients for translating values in data buffer 1 to corresponding values in data buffer 2. More...

Function Documentation

MtkRegressionCoeffCalc()

MTKt_status MtkRegressionCoeffCalc	(	const MTKt_DataBuffer *	Data1,
		const MTKt_DataBuffer *	Valid_mask1,
		const MTKt_DataBuffer *	Data2,
		const MTKt_DataBuffer *	Data2_sigma,
		const MTKt_DataBuffer *	Valid_mask2,
		const MTKt_MapInfo *	Map_info,
		int	Regression_size_factor,
		MTKt_RegressionCoeff *	Regression_coeff,
		MTKt_MapInfo *	Regression_coeff_map_info
	)

Calculate linear regression coefficients for translating values in data buffer 1 to corresponding values in data buffer 2.

Returns

MTK_SUCCESS if successful.

Example:

In this example we determine coefficients to map values in data1 with mask valid_mask1 to data2 having mask valid_mask2 and uncertainty data2_sigma. Linear regression will use pixel neighborhood size specified by regression_size_factor and output the results to regression_coeff with regression_coeff_map_info.

status = MtkRegressionCoeffCalc(&data1, &valid_mask1, &data2, &data2_sigma, &valid_mask2, &map_info, regression_size_factor, &regression_coeff, &regression_coeff_map_info); 

Note

Parameters

[in]	Data1	Data buffer 1
[in]	Valid_mask1	Valid mask for data buffer 1
[in]	Data2	Data buffer 2
[in]	Data2_sigma	Uncertainty for data buffer 2
[in]	Valid_mask2	Valid mask for data buffer 2
[in]	Map_info	Map info for input data.
[in]	Regression_size_factor	Number of pixels to aggregate along each axis when generating regression coefficients.
[out]	Regression_coeff	Regression coefficients.
[out]	Regression_coeff_map_info	Map info for regression coefficients

Definition at line 36 of file MtkRegressionCoeffCalc.c.