diff --git a/notebooks/Compare_with_auxiliary.ipynb b/notebooks/Compare_with_auxiliary.ipynb
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+{
+ "cells": [
+ {
+ "cell_type": "markdown",
+ "id": "ede4124b",
+ "metadata": {},
+ "source": [
+ "Simple notebook that shows how to create a comparer from scratch with Auxiliary date and filter"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 90,
+ "id": "6a66e03a",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "import modelskill as ms\n",
+ "import mikeio\n",
+ "import numpy as np"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 91,
+ "id": "c1b44aae",
+ "metadata": {},
+ "outputs": [],
+ "source": [
+ "file=r'../tests/testdata/obs_two_items.dfs0'"
+ ]
+ },
+ {
+ "cell_type": "markdown",
+ "id": "2cf784c5",
+ "metadata": {},
+ "source": [
+ "First we create some random data for this example"
+ ]
+ },
+ {
+ "cell_type": "code",
+ "execution_count": 92,
+ "id": "25c80a1d",
+ "metadata": {},
+ "outputs": [
+ {
+ "data": {
+ "text/html": [
+ "\n",
+ "\n",
+ "
\n",
+ " \n",
+ " \n",
+ " | \n",
+ " Temperature | \n",
+ " Water Level | \n",
+ " Waves | \n",
+ "
\n",
+ " \n",
+ " \n",
+ " \n",
+ " | 2015-01-01 01:00:00 | \n",
+ " 3.765260 | \n",
+ " 3.862235 | \n",
+ " 3.785870 | \n",
+ "
\n",
+ " \n",
+ " | 2015-01-01 02:00:00 | \n",
+ " 3.488153 | \n",
+ " 3.530358 | \n",
+ " 3.977829 | \n",
+ "
\n",
+ " \n",
+ " | 2015-01-01 03:00:00 | \n",
+ " 3.763207 | \n",
+ " 4.587785 | \n",
+ " 4.493785 | \n",
+ "
\n",
+ " \n",
+ " | 2015-01-01 04:00:00 | \n",
+ " 4.090368 | \n",
+ " 4.645924 | \n",
+ " 4.143113 | \n",
+ "
\n",
+ " \n",
+ " | 2015-01-01 05:00:00 | \n",
+ " 3.374945 | \n",
+ " 3.554441 | \n",
+ " 4.344376 | \n",
+ "
\n",
+ " \n",
+ " | ... | \n",
+ " ... | \n",
+ " ... | \n",
+ " ... | \n",
+ "
\n",
+ " \n",
+ " | 2020-09-27 20:00:00 | \n",
+ " 3.421887 | \n",
+ " 3.531873 | \n",
+ " 3.615233 | \n",
+ "
\n",
+ " \n",
+ " | 2020-09-27 21:00:00 | \n",
+ " 3.282840 | \n",
+ " 3.322007 | \n",
+ " 4.156146 | \n",
+ "
\n",
+ " \n",
+ " | 2020-09-27 22:00:00 | \n",
+ " 3.553412 | \n",
+ " 4.319250 | \n",
+ " 3.682936 | \n",
+ "
\n",
+ " \n",
+ " | 2020-09-27 23:00:00 | \n",
+ " 4.089186 | \n",
+ " 4.575870 | \n",
+ " 5.012598 | \n",
+ "
\n",
+ " \n",
+ " | 2020-09-28 00:00:00 | \n",
+ " 3.798033 | \n",
+ " 3.798321 | \n",
+ " 4.789514 | \n",
+ "
\n",
+ " \n",
+ "
\n",
+ "
50328 rows × 3 columns
\n",
+ "