updatedinverse.ipynb

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       "<iframe id=\"igraph\" scrolling=\"no\" style=\"border:none;\" seamless=\"seamless\" src=\"https://plot.ly/~chelsea_lyn/11670.embed\" height=\"525px\" width=\"100%\"></iframe>"
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   "source": [
    "import plotly.plotly as py\n",
    "import plotly.graph_objs as go\n",
    "\n",
    "# data\n",
    "x = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]\n",
    "y1 = [1000, 500, 250, 5, 100, 500, 600, 75, 10, 200, 100]\n",
    "y2 = [500, 250, 5, 100, 500, 600, 75, 10, 200, 100, 1000]\n",
    "\n",
    "# invert second trace\n",
    "y2neg = [-y for y in y2]\n",
    "\n",
    "# create traces with fill = 'tozeroy' \n",
    "trace_pos = go.Scatter(x=x, y=y1, text=y1,\n",
    "                       fill='tozeroy',\n",
    "                       hoverinfo='text')\n",
    "\n",
    "# set y to the negative array and text to the positive array\n",
    "# set hoverinfo to 'x+text' to remove negative y values in hover\n",
    "trace_neg = go.Scatter(x=x, y=y2neg, text=y2,\n",
    "                       fill='tozeroy',\n",
    "                       hoverinfo='text')\n",
    "\n",
    "# add trace for x labels on zeroline\n",
    "trace_lab = go.Scatter(x=x, y=[0]*len(x),\n",
    "                       text=x, mode='markers+text',\n",
    "                       marker=dict(color='black', symbol=142),\n",
    "                       textposition='bottom',\n",
    "                       hoverinfo='text')\n",
    "\n",
    "data=[trace_pos, trace_neg, trace_lab]\n",
    "\n",
    "# set the tickvals to the neg - pos vals\n",
    "# set the ticktext to all positive values\n",
    "layout=dict(\n",
    "    yaxis = dict(\n",
    "        tickvals = [-1000, -500, 0, 500, 1000],\n",
    "        ticktext = [1000, 500, 0, 500, 1000]),\n",
    "    xaxis = dict(\n",
    "        showticklabels=False))\n",
    "\n",
    "fig = go.Figure(data=data, layout=layout)\n",
    "py.iplot(fig)"
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