def to_strings(self, *, quote=True, pad=False, truncate_width=inf):
"""
Return vector as strings formatted for display.
>>> vector = di.Vector([1/2, 1/3, 1/4])
>>> vector.to_strings()
"""
if self.length == 0:
return self.__class__.fast([], str)
identity = lambda x, *args, **kwargs: x
quote = util.quote if quote else identity
pad = util.pad if pad else identity
if self.is_float():
strings = util.format_floats(self)
return self.__class__.fast(pad(strings), str)
if self.is_integer():
strings = ["{:d}".format(x) for x in self]
return self.__class__.fast(pad(strings), str)
if self.is_object():
strings = [str(x) for x in self]
for i in range(len(strings)):
if len(strings[i]) > truncate_width:
strings[i] = strings[i][:(truncate_width - 1)] + "…"
return self.__class__.fast(pad(strings), str)
if self.is_string():
strings = [quote(x) for x in self]
for i in range(len(strings)):
if len(strings[i]) > truncate_width:
strings[i] = strings[i][:(truncate_width - 1)] + "…"
return self.__class__.fast(pad(strings), str)
strings = [str(x) for x in self]
return self.__class__.fast(pad(strings), str)
def test_format_floats_inf(self):
a = [-math.inf, 0, math.inf, np.nan]
b = ["-inf", "0e+00", "inf", "nan"]
assert util.format_floats(a) == b
def test_format_floats_integer(self):
a = [1.0, 2.0, 3.0, np.nan]
b = ["1", "2", "3", "nan"]
assert util.format_floats(a) == b
def test_format_floats_5(self):
a = [12345678, 1234567812345678, 123456781234567812345678, np.nan]
b = ["1.234568e+07", "1.234568e+15", "1.234568e+23", "nan"]
assert util.format_floats(a) == b
def test_format_floats_4(self):
a = [123.456789, 123456.789, 123456789, np.nan]
b = ["123", "123457", "123456789", "nan"]
assert util.format_floats(a) == b
def test_format_floats_3(self):
a = [0.123456, 1, 123.456, np.nan]
b = ["0.123", "1.000", "123.456", "nan"]
assert util.format_floats(a) == b
def test_format_floats_2(self):
a = [0.000123456, 0.123456, 0, np.nan]
b = ["0.000123", "0.123456", "0.000000", "nan"]
assert util.format_floats(a) == b
def test_format_floats_1(self):
a = [1 / 1000000000, 1 / 1000000, 1 / 1000, np.nan]
b = ["1e-09", "1e-06", "1e-03", "nan"]
assert util.format_floats(a) == b
