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How to use to_expression method in Slash

Best Python code snippet using slash

matrix_calculus.py

Source:matrix_calculus.py

...94    def _repr_latex_(self):95        s = self.symbol.strip('$')96        return "$$%s$$" % s9798    def to_expression(self):99        return Expression([self])100101102    # def __str__(self):103    #     return "Matrix({}, is_symmetric={})".format(self.symbol, self.is_symmetric)104105    def __str__(self):106        return self.symbol107108    def transpose(self):109        other = deepcopy(self)110        if other.is_transposed:111            other.symbol = other.symbol.replace("'","")112            other.is_transposed = False113        else:114            other.symbol = other.symbol + "'"115            other.is_transposed = True116        return other117118    def __add__(self, other):119        this = self.to_expression()120        if type(other) is Expression:121            return Operators.add(this, other)122        other = Expression([other])123        return Operators.add(this, other)124125    def __radd__(self, other):126        this = self.to_expression()127        if type(other) is Expression:128            return Operators.add(other, this)129        other = Expression([other])130        return Operators.add(other, this)131132    def __sub__(self, other):133        this = self.to_expression()134        if type(other) is Expression:135            return Operators.minus(this, other)136        other = Expression([other])137        return Operators.minus(this, other)138139    def __rsub__(self, other):140        this = self.to_expression()141        if type(other) is Expression:142            return Operators.minus(other, this)143        other = Expression([other])144        return Operators.minus(other, this)145146    def __mul__(self, other):147        this = self.to_expression()148        if type(other) is Expression:149            return Operators.multiply(this, other)150        other = Expression([other])151        return Operators.multiply(this, other)152153    def __rmul__(self, other):154        this = self.to_expression()155        if type(other) is Expression:156            return Operators.multiply(other, this)157        other = Expression([other])158        return Operators.multiply(other, this)159160161    def __truediv__(self, other):162        this = self.to_expression()163        if type(other) is Expression:164            return Operators.divide(this, other)165        other = Expression([other])166        return Operators.divide(this, other)167168    def __rtruediv__(self, other):169        this = self.to_expression()170        if type(other) is Expression:171            return Operators.divide(other, this)172        other = Expression([other])173        return Operators.divide(other, this)174175    def __div__(self, other):176        this = self.to_expression()177        if type(other) is Expression:178            return Operators.divide(this, other)179        other = Expression([other])180        return Operators.divide(this, other)181182    def __rdiv__(self, other):183        this = self.to_expression()184        if type(other) is Expression:185            return Operators.divide(other, this)186        other = Expression([other])187        return Operators.divide(other, this)188189    190    def __pow__(self, other):191        this = self.to_expression()192        if type(other) is Expression:193            return Operators.power(this, other)194        other = Expression([other])195        return Operators.power(this, other)196197    def __rpow__(self, other):198        this = self.to_expression()199        if type(other) is Expression:200            return Operators.power(other, this)201        other = Expression([other])202        return Operators.power(other, this)203204    def elem_mult(self, other):205        this = self.to_expression()206        if type(other) is Expression:207            return Operators.element_wise_multiply(this, other)208        other = Expression([other])209        return Operators.element_wise_multiply(this, other)210211    def elem_div(self, other):212        this = self.to_expression()213        if type(other) is Expression:214            return Operators.element_wise_division(this, other)215        other = Expression([other])216        return Operators.element_wise_division(this, other)217218    def elem_pow(self, other):219        this = self.to_expression()220        if type(other) is Expression:221            return Operators.element_wise_power(this, other)222        other = Expression([other])223        return Operators.element_wise_power(this, other)224225class Vector(Matrix):226    def __init__(self, symbol, n_rows=None):227        super().__init__(symbol, False, n_rows, None, False)228        assert self.chars[0] in string.ascii_lowercase, "first letter in vector must be lowercase letter."229        self.var_type = 'vector'230       231        232class Scalar(Matrix):233    def __init__(self, symbol):
...

paired_links.py

Source:paired_links.py

1"""2Two networks and heatmaps with coordinated node selection and layouts.3XXXX This is copy-pasted and edited from paired_networks.py.4At some point common functionality should be refactored, maybe.5Or perhaps the whole infrastructure should be generalized.6"""7from IPython.display import display8from jp_gene_viz import LExpression9from ipywidgets import widgets10import traitlets11# Call this once.12from dNetwork import load_javascript_support13class PairedLinks(traitlets.HasTraits):14    """15    Coordinated networks.16    """17    def __init__(self, *args, **kwargs):18        super(PairedLinks, self).__init__(*args, **kwargs)19        self.left_expression = LExpression.LinkedExpressionNetwork()20        self.right_expression = LExpression.LinkedExpressionNetwork()21        lb = self.left_sync_button = self.make_button(u"sync \u21DB", self.left_sync_click)22        rb =self.right_sync_button = self.make_button(u"\u21DA sync", self.right_sync_click)23        ib = self.intersect_button = self.make_button("intersect", self.intersect_click)24        db = self.difference_button = self.make_button("difference", self.difference_click)25        lbuttons = widgets.HBox(children=[ib, db, lb])26        left_stack = widgets.VBox(children=[lbuttons, self.left_expression.assembly])27        right_stack = widgets.VBox(children=[rb, self.right_expression.assembly])28        self.assembly = widgets.HBox(children=[left_stack, right_stack])29    def load_left(self, network_filename, heatmap_filename):30        "Load the left network and heatmap"31        self._load(self.left_expression, network_filename, heatmap_filename)32    def load_right(self, network_filename, heatmap_filename):33        "Load the right network and heatmap"34        self._load(self.right_expression, network_filename, heatmap_filename)35    def _load(self, expression, network_filename, heatmap_filename):36        expression.load_network(network_filename)37        expression.load_heatmap(heatmap_filename)38    def show(self):39        display(self.assembly)40    def make_button(self, description, on_click,41                    disabled=False, width="200px"):42        "Create a button."43        # XXXX refactor to superclass.44        result = widgets.Button(description=description)45        result.on_click(on_click)46        result.disabled = disabled47        result.layout.width = width48        return result49    def right_sync_click(self, b):50        return self.sync_click(self.right_expression, self.left_expression)51    def left_sync_click(self, b):52        return self.sync_click(self.left_expression, self.right_expression)53    def sync_click(self, from_expression, to_expression):54        nodes = from_expression.network.get_selection()55        to_expression.network.set_selection(nodes)56        to_expression.network.display_positions = from_expression.network.display_positions.copy()57        to_expression.network.draw()58    def intersect_click(self, b):59        return self.combine_networks("intersect")60    def difference_click(self, b):61        return self.combine_networks("difference")62    def combine_networks(self, mode):63        left_edges = self.left_expression.network.visible_edges()64        right_edges = self.right_expression.network.visible_edges()65        if mode == "intersect":66            combined_edges = left_edges & right_edges67        elif mode == "difference":68            combined_edges = left_edges.symmetric_difference(right_edges)69        else:70            raise ValueError("bad mode: " + repr(mode))71        if not combined_edges:72            self.left_expression.network.alert("Network %s has no edges" % mode)73            return74        for network in (self.left_expression.network, self.right_expression.network):...

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