4 examples of 'convert object to float pandas' in Python

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175def conv_to_float(self,obj):
176 try:
177 float_obj = float(obj)
178 return float_obj, True
179 except ValueError:
180 return None, False
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55def _to_np_float64(v):
56 if math.isnan(v) or math.isinf(v):
57 return np.inf
58 return np.float64(v)
91def is_float(obj):
92 """
93 Valid types are:
94 - objects of float type
95 - Strings that can be converted to float. For example '1e-06'
96 """
97 is_f = isinstance(obj, float)
98 if not is_f:
99 try:
100 float(obj)
101 is_f = True
102 except (ValueError, TypeError):
103 is_f = False
104 return is_f and not is_bool(obj)
39def as_float_array(X, copy=True):
40 """Converts an array-like to an array of floats
41
42 The new dtype will be np.float32 or np.float64, depending on the original
43 type. The function can create a copy or modify the argument depending
44 on the argument copy.
45
46 Parameters
47 ----------
48 X : array
49
50 copy : bool, optional
51 If True, a copy of X will be created. If False, a copy may still be
52 returned if X's dtype is not a floating point type.
53
54 Returns
55 -------
56 X : array
57 An array of type np.float
58 """
59 if isinstance(X, np.matrix):
60 X = X.A
61 elif not isinstance(X, np.ndarray) and not sparse.issparse(X):
62 return safe_asarray(X, dtype=np.float64)
63 if X.dtype in [np.float32, np.float64]:
64 return X.copy() if copy else X
65 if X.dtype == np.int32:
66 X = X.astype(np.float32)
67 else:
68 X = X.astype(np.float64)
69 return X

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