initial commit: ts time series analysis library v0.1.0

- 354 financial and mathematical time-series indicators
- Uniform C11 API with consistent function signatures
- 349 passing tests with -Werror
- Static and shared library builds
- pkg-config integration
- Python bindings
- Fuzzing and sanitizer support
- Security hardening flags

1 files changed, 27 insertions, 0 deletions

diff --git a/test/price_rate_of_change.c b/test/price_rate_of_change.c
new file mode 100644
index 0000000..ec3eb9c
--- /dev/null
+++ b/test/price_rate_of_change.c
@@ -0,0 +1,27 @@
+#include <math.h>
+#include <stddef.h>
+#include "ts.h"
+
+bool ts_test_price_rate_of_change( void )
+{
+    fp_t const x[] = { 100, 110, 120, 130, 140, 150, 160, 170, 180, 190 };
+
+    fp_t const * const inp[1] = { x };
+
+    /* k=3 */
+    /* PROC[3] = (130-100)/100*100 = 30 */
+    /* PROC[4] = (140-110)/110*100 = 27.2727 */
+    /* PROC[5] = (150-120)/120*100 = 25 */
+    /* PROC[6] = (160-130)/130*100 = 23.0769 */
+    /* PROC[7] = (170-140)/140*100 = 21.4286 */
+    /* PROC[8] = (180-150)/150*100 = 20 */
+    /* PROC[9] = (190-160)/160*100 = 18.75 */
+
+    fp_t e[] = { 30.0, 27.272727272727273, 25.0, 23.076923076923077, 21.428571428571427, 20.0, 18.75 };
+
+    fp_t const * const exp[1] = { e };
+
+    uint_t c_val = 3;
+
+    return ts_test(ts_price_rate_of_change, ts_price_rate_of_change_offset, inp, exp, sizeof( x ) / sizeof( *x ), (ts_constant_t *)&c_val, &ts_price_rate_of_change_p);
+}