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/* ---------------------------------------------------------------------- 
* Copyright （C） 2010 ARM Limited. All rights reserved.   
*  
* $Date:        29. November 2010  
* $Revision: 	V1.0.3 
*  
* Project: 	    CMSIS DSP Library  
* title:        arm_class_marks_example_f32.c		  
*  
* Description:	Example code to calculate Minimum Maximum 
*               Mean std and variance of marks obtained in a class 
* 
* Target Processor: Cortex-M4/Cortex-M3
*
* Version 1.0.3 2010/11/29 
*    Re-organized the CMSIS folders and updated documentation. 
*  
* Version 1.0.1 2010/10/05 KK 
*    Production release and review comments incorporated.  
*
* Version 1.0.0 2010/09/20 KK
*    Production release and review comments incorporated.
* ------------------------------------------------------------------- */ 
 
/** 
 * @ingroup groupExamples 
 */ 
 
/**    
 * @defgroup ClassMarks Class Marks Example  
 *
 * par Description: 
 * par
 * Demonstrates the use the Maximum Minimum Mean Standard Deviation Variance
 * and Matrix functions to calculate statistical values of marks obtained in a class.
 *
 * 
ote This example also demonstrates the usage of static initialization.
 *  
 * par Variables Description:
 * par
 * li c testMarks_f32 points to the marks scored by 20 students in 4 subjects
 * li c max_marks     Maximum of all marks 
 * li c min_marks     Minimum of all marks 
 * li c mean          Mean of all marks
 * li c var           Variance of the marks
 * li c std           Standard deviation of the marks 
 * li c numStudents   Total number of students in the class
 *
 * par CMSIS DSP Software Library Functions Used:
 * par
 * - arm_mat_init_f32（）
 * - arm_mat_mult_f32（）
 * - arm_max_f32（）
 * - arm_min_f32（）
 * - arm_mean_f32（）
 * - arm_std_f32（）
 * - arm_var_f32（）
 * 
 *  Refer   
 * link arm_class_marks_example_f32.c endlink
 * 
 */ 
 
 
/** example arm_class_marks_example_f32.c 
  */  
#include “arm_math.h“ 
 
#define USE_STATIC_INIT 
 
 /* ---------------------------------------------------------------------- 
** Global defines  
** ------------------------------------------------------------------- */ 
 
#define TEST_LENGTH_SAMPLES 	（20*4） 
 
/* ---------------------------------------------------------------------- 
** List of Marks scored by 20 students for 4 subjects 
** ------------------------------------------------------------------- */  
const float32_t testMarks_f32[TEST_LENGTH_SAMPLES] =  
{    
	42.000000	37.000000	81.000000	28.000000	 
	83.000000	72.000000	36.000000	38.000000	 
	32.000000	51.000000	63.000000	64.000000	 
	97.000000	82.000000	95.000000	90.000000	 
	66.000000	51.000000	54.000000	42.000000	 
	67.000000	56.000000	45.000000	57.000000	 
	67.000000	69.000000	35.000000	52.000000	 
	29.000000	81.000000	58.000000	47.000000	 
	38.000000	76.000000	100.000000	29.000000	 
	33

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