renamed bo to samplers

samplers/random.py

@@ -0,0 +1,27 @@
+import copy
+import numpy as np
+from samplers.base import Sampler
+
+
+class RandomSampler(Sampler):
+
+    def __init__(self, config):
+        super().__init__(config)
+
+
+    def ask(self, n = 1):
+        next_configs = []
+
+        for _ in range(n):
+            next_config = copy.deepcopy(self.config)
+            for param in self.params:
+                radius = self.config['bo']['params'][param]['radius']
+                center = self.config['ptycho']['params'][param]
+                modulation = radius * (np.random.rand() - 0.5) * 2
+                next_value = center + modulation
+                if self.param_types[param] == 'int':
+                    next_value = round(next_value)
+                next_config['ptycho']['params'][param] = next_value
+            next_configs.append(next_config)
+
+        return next_configs