fix: Update example.c

Signed-off-by: Dhruv/ <[email protected]>

Author: DhruvArvindSingh

lib/node_modules/@stdlib/stats/base/dmeanpn/examples/c/example.c

@@ -23,8 +23,14 @@ int main( void ) {
 	// Create a strided array:
 	const double x[] = { 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0 };
 
+	// Specify the number of elements:
+	const int N = 4;
+	
+	// Specify the stride length:
+	const int strideX = 2;
+	
 	// Compute the arithmetic mean:
-	double v = stdlib_strided_dmeanpn( 4, x, 2 );
+	double v = stdlib_strided_dmeanpn( N, x, strideX );
 
 	// Print the result:
 	printf( "mean: %lf\n", v );