Merge pull request rlabbe#244 from jeremyroy/master

Fixed typo

Author: rlabbe

01-g-h-filter.ipynb

@@ -1662,7 +1662,7 @@
    "source": [
     "## Interactive Example\n",
     "\n",
-    "For those of you running this in Jupyter Notebook I've written an interactive version of the filter so you can see the effect of changing $\\dot{x}$, $g$ and $h$ in real time. As you adjust the sliders for $\\dot{x}$, $g$ and $h$ the date will be refiltered and the results plotted for you.\n",
+    "For those of you running this in Jupyter Notebook I've written an interactive version of the filter so you can see the effect of changing $\\dot{x}$, $g$ and $h$ in real time. As you adjust the sliders for $\\dot{x}$, $g$ and $h$ the data will be refiltered and the results plotted for you.\n",
     "\n",
     "If you really want to test yourself, read the next paragraph and try to predict the results before you move the sliders. \n",
     "\n",