feat: add plot_ prefix back to plotting methods (#212)

Closes #211.

### Summary of Changes

Now that plotting functionality is implemented as methods of `Table` and
`Column`, it makes sense to group them together by prepending `plot_` to
the method names.

docs/tutorials/data_visualization.ipynb

@@ -102,7 +102,7 @@
    "execution_count": null,
    "outputs": [],
    "source": [
-    "titanic_numerical.correlation_heatmap()"
+    "titanic_numerical.plot_correlation_heatmap()"
    ],
    "metadata": {
     "collapsed": false,
@@ -143,7 +143,7 @@
    "execution_count": null,
    "outputs": [],
    "source": [
-    "titanic_numerical.lineplot(\"survived\", \"fare\")"
+    "titanic_numerical.plot_lineplot(\"survived\", \"fare\")"
    ],
    "metadata": {
     "collapsed": false,
@@ -176,7 +176,7 @@
    "execution_count": null,
    "outputs": [],
    "source": [
-    "titanic_numerical.get_column(\"age\").boxplot()"
+    "titanic_numerical.get_column(\"age\").plot_boxplot()"
    ],
    "metadata": {
     "collapsed": false,
@@ -200,7 +200,7 @@
    "execution_count": null,
    "outputs": [],
    "source": [
-    "titanic_numerical.get_column(\"fare\").histogram()"
+    "titanic_numerical.get_column(\"fare\").plot_histogram()"
    ],
    "metadata": {
     "collapsed": false,
@@ -224,7 +224,7 @@
    "execution_count": null,
    "outputs": [],
    "source": [
-    "titanic_numerical.scatterplot(\"age\", \"fare\")\n"
+    "titanic_numerical.plot_scatterplot(\"age\", \"fare\")\n"
    ],
    "metadata": {
     "collapsed": false,

src/safeds/data/tabular/containers/_column.py

@@ -473,7 +473,7 @@ def variance(self) -> float:
     # Plotting
     # ------------------------------------------------------------------------------------------------------------------
 
-    def boxplot(self) -> Image:
+    def plot_boxplot(self) -> Image:
         """
         Plot this column in a boxplot. This function can only plot real numerical data.
 
@@ -507,7 +507,7 @@ def boxplot(self) -> Image:
         buffer.seek(0)
         return Image(buffer, ImageFormat.PNG)
 
-    def histogram(self) -> Image:
+    def plot_histogram(self) -> Image:
         """
         Plot a column in a histogram.
 

src/safeds/data/tabular/containers/_table.py

@@ -992,7 +992,7 @@ def transform_column(self, name: str, transformer: Callable[[Row], Any]) -> Tabl
     # Plotting
     # ------------------------------------------------------------------------------------------------------------------
 
-    def correlation_heatmap(self) -> Image:
+    def plot_correlation_heatmap(self) -> Image:
         """
         Plot a correlation heatmap for all numerical columns of this `Table`.
 
@@ -1020,7 +1020,7 @@ def correlation_heatmap(self) -> Image:
         buffer.seek(0)
         return Image(buffer, format_=ImageFormat.PNG)
 
-    def lineplot(self, x_column_name: str, y_column_name: str) -> Image:
+    def plot_lineplot(self, x_column_name: str, y_column_name: str) -> Image:
         """
         Plot two columns against each other in a lineplot.
 
@@ -1070,7 +1070,7 @@ def lineplot(self, x_column_name: str, y_column_name: str) -> Image:
         buffer.seek(0)
         return Image(buffer, format_=ImageFormat.PNG)
 
-    def scatterplot(self, x_column_name: str, y_column_name: str) -> Image:
+    def plot_scatterplot(self, x_column_name: str, y_column_name: str) -> Image:
         """
         Plot two columns against each other in a scatterplot.
 

tests/safeds/data/tabular/containers/_column/test_boxplot.py → tests/safeds/data/tabular/containers/_column/test_plot_boxplot.py

@@ -5,25 +5,25 @@
 from safeds.data.tabular.exceptions import NonNumericColumnError
 
 
-def test_boxplot_complex() -> None:
+def test_plot_boxplot_complex() -> None:
     with pytest.raises(NotImplementedError):  # noqa: PT012
         table = Table.from_dict({"A": [1, 2, complex(1, -2)]})
-        table.get_column("A").boxplot()
+        table.get_column("A").plot_boxplot()
 
 
-def test_boxplot_non_numeric() -> None:
+def test_plot_boxplot_non_numeric() -> None:
     table = Table.from_dict({"A": [1, 2, "A"]})
     with pytest.raises(NonNumericColumnError):
-        table.get_column("A").boxplot()
+        table.get_column("A").plot_boxplot()
 
 
-def test_boxplot_float(monkeypatch: _pytest.monkeypatch) -> None:
+def test_plot_boxplot_float(monkeypatch: _pytest.monkeypatch) -> None:
     monkeypatch.setattr(plt, "show", lambda: None)
     table = Table.from_dict({"A": [1, 2, 3.5]})
-    table.get_column("A").boxplot()
+    table.get_column("A").plot_boxplot()
 
 
-def test_boxplot_int(monkeypatch: _pytest.monkeypatch) -> None:
+def test_plot_boxplot_int(monkeypatch: _pytest.monkeypatch) -> None:
     monkeypatch.setattr(plt, "show", lambda: None)
     table = Table.from_dict({"A": [1, 2, 3]})
-    table.get_column("A").boxplot()
+    table.get_column("A").plot_boxplot()

tests/safeds/data/tabular/containers/_column/test_histogram.py → tests/safeds/data/tabular/containers/_column/test_plot_histogram.py

@@ -3,7 +3,7 @@
 from safeds.data.tabular.containers import Table
 
 
-def test_histogram(monkeypatch: _pytest.monkeypatch) -> None:
+def test_plot_histogram(monkeypatch: _pytest.monkeypatch) -> None:
     monkeypatch.setattr(plt, "show", lambda: None)
     table = Table.from_dict({"A": [1, 2, 3]})
-    table.get_column("A").histogram()
+    table.get_column("A").plot_histogram()

tests/safeds/data/tabular/containers/_table/test_correlation_heatmap.py → tests/safeds/data/tabular/containers/_table/test_plot_correlation_heatmap.py

@@ -3,13 +3,13 @@
 from safeds.data.tabular.containers import Table
 
 
-def test_correlation_heatmap_non_numeric(monkeypatch: _pytest.monkeypatch) -> None:
+def test_plot_correlation_heatmap_non_numeric(monkeypatch: _pytest.monkeypatch) -> None:
     monkeypatch.setattr(plt, "show", lambda: None)
     table = Table.from_dict({"A": [1, 2, "A"], "B": [1, 2, 3]})
-    table.correlation_heatmap()
+    table.plot_correlation_heatmap()
 
 
-def test_correlation_heatmap(monkeypatch: _pytest.monkeypatch) -> None:
+def test_plot_correlation_heatmap(monkeypatch: _pytest.monkeypatch) -> None:
     monkeypatch.setattr(plt, "show", lambda: None)
     table = Table.from_dict({"A": [1, 2, 3.5], "B": [2, 4, 7]})
-    table.correlation_heatmap()
+    table.plot_correlation_heatmap()

tests/safeds/data/tabular/containers/_table/test_scatterplot.py → tests/safeds/data/tabular/containers/_table/test_plot_lineplot.py

@@ -5,13 +5,13 @@
 from safeds.data.tabular.exceptions import UnknownColumnNameError
 
 
-def test_scatterplot(monkeypatch: _pytest.monkeypatch) -> None:
+def test_plot_lineplot(monkeypatch: _pytest.monkeypatch) -> None:
     monkeypatch.setattr(plt, "show", lambda: None)
     table = Table.from_dict({"A": [1, 2, 3], "B": [2, 4, 7]})
-    table.scatterplot("A", "B")
+    table.plot_lineplot("A", "B")
 
 
-def test_scatterplot_wrong_column_name() -> None:
+def test_plot_lineplot_wrong_column_name() -> None:
     table = Table.from_dict({"A": [1, 2, 3], "B": [2, 4, 7]})
     with pytest.raises(UnknownColumnNameError):
-        table.scatterplot("C", "A")
+        table.plot_lineplot("C", "A")

tests/safeds/data/tabular/containers/_table/test_lineplot.py → tests/safeds/data/tabular/containers/_table/test_plot_scatterplot.py

@@ -5,13 +5,13 @@
 from safeds.data.tabular.exceptions import UnknownColumnNameError
 
 
-def test_lineplot(monkeypatch: _pytest.monkeypatch) -> None:
+def test_plot_scatterplot(monkeypatch: _pytest.monkeypatch) -> None:
     monkeypatch.setattr(plt, "show", lambda: None)
     table = Table.from_dict({"A": [1, 2, 3], "B": [2, 4, 7]})
-    table.lineplot("A", "B")
+    table.plot_scatterplot("A", "B")
 
 
-def test_lineplot_wrong_column_name() -> None:
+def test_plot_scatterplot_wrong_column_name() -> None:
     table = Table.from_dict({"A": [1, 2, 3], "B": [2, 4, 7]})
     with pytest.raises(UnknownColumnNameError):
-        table.lineplot("C", "A")
+        table.plot_scatterplot("C", "A")