Make nice visualization

lib/datasets/synthetic_example.py

@@ -0,0 +1,27 @@
+#####################################################
+# Copyright (c) Xuanyi Dong [GitHub D-X-Y], 2021.04 #
+#####################################################
+
+from .math_base_funcs import DynamicQuadraticFunc
+from .synthetic_utils import ConstantGenerator, SinGenerator
+from .synthetic_env import SyntheticDEnv
+
+
+def create_example_v1(timestamps=50, num_per_task=5000):
+    mean_generator = SinGenerator(num=timestamps)
+    std_generator = SinGenerator(num=timestamps, min_amplitude=0.5, max_amplitude=0.5)
+    std_generator.set_transform(lambda x: x + 1)
+    dynamic_env = SyntheticDEnv(
+        [mean_generator], [[std_generator]], num_per_task=num_per_task
+    )
+    function = DynamicQuadraticFunc()
+    function_param = dict()
+    function_param[0] = SinGenerator(
+        num=timestamps, num_sin_phase=4, phase_shift=1.0, max_amplitude=1.0
+    )
+    function_param[1] = ConstantGenerator(constant=0.9)
+    function_param[2] = SinGenerator(
+        num=timestamps, num_sin_phase=5, phase_shift=0.4, max_amplitude=0.9
+    )
+    function.set(function_param)
+    return dynamic_env, function