def _wrap(self, subset=None, axis=0):
subset = pd.IndexSlice[:, :] if subset is None else subset
subset = non_reducing_slice(subset)
if axis in [0, "columns"]:
idx = self._current_index(subset)[1]
rename = dict(
zip(
self.display_data.columns[idx],
self._wrap_iterable(self.display_data.columns[idx]),
)
)
self.display_data.rename(columns=rename, inplace=True)
elif axis in [1, "index"]:
idx = self._current_index(subset)[0]
rename = dict(
zip(
self.display_data.index[idx],
self._wrap_iterable(self.display_data.index[idx]),
)
)
self.display_data.rename(index=rename, inplace=True)
else:
raise ValueError(f"unknown value for axis: {axis}")
return self
def test_list_slice(self):
# like dataframe getitem
slices = [["A"], Series(["A"]), np.array(["A"])]
df = DataFrame({"A": [1, 2], "B": [3, 4]}, index=["A", "B"])
expected = pd.IndexSlice[:, ["A"]]
for subset in slices:
result = non_reducing_slice(subset)
tm.assert_frame_equal(df.loc[result], df.loc[expected])
def test_list_slice(self, box):
# like dataframe getitem
subset = box(["A"])
df = DataFrame({"A": [1, 2], "B": [3, 4]}, index=["A", "B"])
expected = pd.IndexSlice[:, ["A"]]
result = non_reducing_slice(subset)
tm.assert_frame_equal(df.loc[result], df.loc[expected])
def emojify(self, subset=None):
subset = pd.IndexSlice[:, :] if subset is None else subset
subset = non_reducing_slice(subset)
idx = self._current_index(subset=subset)
result = self.display_data.iloc[idx].applymap(emoji.emojize)
self.display_data.iloc[idx] = result.values
return self
def _current_index(self, subset):
subset = pd.IndexSlice[:, :] if subset is None else subset
subset = non_reducing_slice(subset)
selected = self.data.loc[subset]
idx_slice = pd.IndexSlice[
self.data.index.get_indexer(selected.index),
self.data.columns.get_indexer(selected.columns),
]
return idx_slice
def test_non_reducing_multi_slice_on_multiindex(self, slice_):
# GH 33562
cols = pd.MultiIndex.from_product([["a", "b"], ["c", "d"], ["e", "f"]])
idxs = pd.MultiIndex.from_product([["U", "V"], ["W", "X"], ["Y", "Z"]])
df = DataFrame(np.arange(64).reshape(8, 8), columns=cols, index=idxs)
expected = df.loc[slice_]
result = df.loc[non_reducing_slice(slice_)]
tm.assert_frame_equal(result, expected)
def get_heatmap(self, cmap, sub=None, text_color_threshold=0.408):
if sub is None:
sub = self.subset
cmap = self.min_max_scaler(sub).applymap(
lambda x: self.get_heatmap_color(x, cmap, text_color_threshold))
sub = maybe_numeric_slice(self.data, sub)
sub = non_reducing_slice(sub)
c_mapping = lambda x: cmap.loc[sub]
self.apply(c_mapping, subset=sub, axis=None)
return self
def _convert_to_image(self, subset=None, height=30):
subset = pd.IndexSlice[:, :] if subset is None else subset
subset = non_reducing_slice(subset)
self.display_data.loc[subset] = (
f'<div style="height:{height}px;object-fit:contain;"><img src="'
+ self.data.loc[subset].astype(str)
+ '" style="height:100%;width:100%;object-fit:contain;"/></div>'
)
return self
def emoji_score(self, subset=None, emoji_str=None, bins=None, axis=0):
subset = pd.IndexSlice[:, :] if subset is None else subset
subset = non_reducing_slice(subset)
idx = self._current_index(subset=subset)
result = self.display_data.iloc[idx].apply(
self._emoji_score, axis=axis, result_type="expand", args=(emoji_str, bins)
)
self.display_data.iloc[idx] = result.values
return self.align(subset=subset, location="left", axis=axis)
def to_precision_str(self, subset=None, precision=0, include_zero=True):
subset = pd.IndexSlice[:, :] if subset is None else subset
subset = non_reducing_slice(subset)
def precision_str(x, precision=precision):
if (include_zero or x > 0) and x <= 10 ** -precision:
return f"<{10**-precision}"
else:
return f"{{0:.{precision}f}}".format(x)
self.display_data.loc[subset] = self.data.loc[subset].applymap(precision_str)
return self
def test_non_reducing_slice_on_multiindex(self):
# GH 19861
dic = {
("a", "d"): [1, 4],
("a", "c"): [2, 3],
("b", "c"): [3, 2],
("b", "d"): [4, 1],
}
df = DataFrame(dic, index=[0, 1])
idx = pd.IndexSlice
slice_ = idx[:, idx["b", "d"]]
tslice_ = non_reducing_slice(slice_)
result = df.loc[tslice_]
expected = DataFrame({("b", "d"): [4, 1]})
tm.assert_frame_equal(result, expected)
def _tooltip(self, tip, subset=None, part=None):
subset = pd.IndexSlice[:, :] if subset is None else subset
subset = non_reducing_slice(subset)
if part is None:
part = "data"
if part == "data":
self.display_data.loc[subset] = (
"<div title='"
+ tip
+ "'>"
+ self.display_data.loc[subset].astype(str)
+ "</div>"
)
elif part == "columns":
idx = self._current_index(subset)[1]
rename = dict(
zip(
self.display_data.columns[idx],
"<div title='"
+ tip
+ "'>"
+ self.display_data.columns[idx].astype(str)
+ "</div>",
)
)
self.display_data.rename(columns=rename, inplace=True)
elif part == "index":
idx = self._current_index(subset)[0]
rename = dict(
zip(
self.display_data.index[idx],
"<div title='"
+ tip
+ "'>"
+ self.display_data.index[idx].astype(str)
+ "</div>",
)
)
self.display_data.rename(index=rename, inplace=True)
else:
raise ValueError(f"unknown value for part: {part}")
return self
def scaled_background_gradient(
self,
subset=None,
cmap="RdBu_r",
low=0,
high=0,
center_zero=False,
vmin=None,
vmax=None,
):
if center_zero:
sub = pd.IndexSlice[:, :] if subset is None else subset
sub = non_reducing_slice(sub)
vmax = (
self.data.loc[sub]
.replace({np.inf: np.nan, -np.inf: np.nan})
.max(skipna=True)
.max()
if vmax is None
else vmax
)
vmin = (
self.data.loc[sub]
.replace({np.inf: np.nan, -np.inf: np.nan})
.min(skipna=True)
.min()
if vmin is None
else vmin
)
vmax = max(abs(vmax), abs(vmin))
vmin = -vmax
r = self.background_gradient(
subset=subset,
cmap=cmap,
vmin=vmin,
vmax=vmax,
low=low,
high=high,
)
return r
def test_non_reducing_slice(self, slc):
df = DataFrame([[0, 1], [2, 3]])
tslice_ = non_reducing_slice(slc)
assert isinstance(df.loc[tslice_], DataFrame)
def _circle(
self,
subset=None,
show_text=True,
color=None,
cmap=None,
vmin=None,
vmax=None,
scale=False,
size=25,
min_size=5,
morph=False,
):
subset = pd.IndexSlice[:, :] if subset is None else subset
subslice = non_reducing_slice(subset)
if color:
palette = sns.color_palette([color])
# print(palette)
elif cmap is None:
palette = sns.light_palette((210, 90, 60), input="husl", n_colors=10)
else:
# if isinstance(palette, str):
palette = sns.color_palette(cmap)
# Make sure we don't select text columns
if len(palette) > 1:
subslice = pd.IndexSlice[
self.data.loc[subslice].index,
self.data.loc[subslice].select_dtypes(exclude=["object"]).columns,
]
idx = self._current_index(subslice)
self.circle_styles = self.circle_styles or []
circle_id = len(self.circle_styles) + 1
props = [
("height", f"{size}px"),
("width", f"{size}px"),
("border-radius", "50%"),
("color", "#000"),
("line-height", f"{size}px"),
("display", "inline-block"),
("text-align", "center"),
("vertical-align", "middle"),
]
self.circle_styles.append({"name": f"circle{circle_id}", "props": props})
self.palette_styles = self.palette_styles or []
for i, color in enumerate(palette.as_hex()):
props = [("background-color", color)]
if scale:
circle_size = min_size + ((size - min_size) / len(palette) * (i + 1))
props += [
("height", f"{circle_size}px"),
("width", f"{circle_size}px"),
("line-height", f"{circle_size}px"),
("text-align", "center"),
]
if morph:
props += [("border-radius", f"{50 - int(50 / len(palette)) * i}%")]
self.palette_styles.append(
{"name": f"color{circle_id}_{i}", "props": props}
)
if len(palette) > 1:
vmax = (
self.data.loc[subslice].max().max() * 1.01
if vmax is None
else vmax * 1.01
)
text = self.display_data.iloc[idx].astype(str) if show_text else ""
self.display_data.iloc[idx] = (
f"<div class='circle{circle_id} color{circle_id}_"
+ (self.data.loc[subslice] / (vmax / len(palette)))
.astype(int)
.astype(str)
+ "'>"
+ text
+ "</div>"
)
else:
text = self.display_data.iloc[idx].astype(str) if show_text else ""
self.display_data.iloc[idx] = (
f"<div class='circle{circle_id} color{circle_id}_0'>" + text + "</div>"
)
return self
