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

175
def conv_to_float(self,obj):
176
    try:
177
        float_obj = float(obj)
178
        return float_obj, True
179
    except ValueError:
180
        return None, False

55
def _to_np_float64(v):
56
  if math.isnan(v) or math.isinf(v):
57
    return np.inf
58
  return np.float64(v)

91
def 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)

39
def 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