add doc for single precision, dont allow half precision, add test

This commit is contained in:
robcaulk
2022-11-04 18:10:04 +01:00
parent 3ccc120f92
commit 257c833831
3 changed files with 10 additions and 19 deletions

View File

@@ -1357,22 +1357,11 @@ class FreqaiDataKitchen:
for col in df.columns[1:]:
col_type = df[col].dtype
if col_type != object:
c_min = df[col].min()
c_max = df[col].max()
if str(col_type)[:3] == "int":
if c_min > np.iinfo(np.int8).min and c_max < np.iinfo(np.int8).max:
df[col] = df[col].astype(np.int8)
elif c_min > np.iinfo(np.int16).min and c_max < np.iinfo(np.int16).max:
df[col] = df[col].astype(np.int16)
elif c_min > np.iinfo(np.int32).min:
df[col] = df[col].astype(np.int32)
df[col] = df[col].astype(np.int32)
else:
if c_min > np.finfo(np.float16).min and c_max < np.finfo(np.float16).max:
df[col] = df[col].astype(np.float16)
elif c_min > np.finfo(np.float32).min:
df[col] = df[col].astype(np.float32)
df[col] = df[col].astype(np.float32)
end_mem = df.memory_usage().sum() / 1024**2
print("Memory usage after optimization is: {:.2f} MB".format(end_mem))