title: How to graph these three columns of data with two y-axis in R?
body: <p>I have data:</p>
  <p>structure(list(Group.1 = structure(c(17897, 17928, 17956, 17987,
  18017, 18048, 18078, 18109, 18140, 18170, 18201, 18231, 18262,
  18293, 18322, 18353, 18383, 18414, 18444, 18475, 18506, 18536,
  18567, 18597), class = &quot;Date&quot;), w_VidP = c(92.5925925925926,
  95.0391644908616, 91.2820512820513, 94.1326530612245, 96.8838526912181,
  93.6962750716332, 94.1340782122905, 95.1219512195122, 94.6635730858469,
  91.0869565217391, 93.9130434782609, 95.0664136622391, 93.7833037300178,
  93.7943262411348, 73.7814554522784, 78.7838462772634, 80.9031501001477,
  81.311686371836, 83.6755826502932, 85.4640458697901, 92.2114249211173,
  93.379673311808, 93.451937568209, 92.7840865787669), h_VidP = c(90.9090909090909,
  83.3333333333333, 88.2352941176471, 92.8571428571429, 90.4761904761905,
  0, 0, 0, 0, 96, 0, 0, 0, 96, 78.3102143757881, 85.030303030303,
  87.3960332693538, 87.9140328697851, 89.0800794176042, 90.1778808971384,
  94.3351505095994, 94.8272066916135, 94.7485536270583, 93.8617401668653
  ), nwo_VidP = c(84.6153846153846, 85.7142857142857, 85.7142857142857,
  NaN, NaN, 90.9090909090909, NaN, 87.5, 94.7368421052632, 90.9090909090909,
  89.6551724137931, 66.6666666666667, 80, 61.5384615384615, 72.1188118811881,
  81.7953861584754, 84.7028086218158, 84.8016997167139, 85.1056211958468,
  86.2537123462028, 91.467481934408, 92.6741803278689, 92.8238838674336,
  92.0883387938357)), row.names = c(NA, -24L), class = &quot;data.frame&quot;)</p>
  <p>This data looks like:</p>
  <pre><code>      Group.1   w_VidP   h_VidP nwo_VidP
  1  2019-01-01 92.59259 90.90909 84.61538
  2  2019-02-01 95.03916 83.33333 85.71429
  3  2019-03-01 91.28205 88.23529 85.71429
  4  2019-04-01 94.13265 92.85714      NaN
  5  2019-05-01 96.88385 90.47619      NaN
  6  2019-06-01 93.69628  0.00000 90.90909
  7  2019-07-01 94.13408  0.00000      NaN
  8  2019-08-01 95.12195  0.00000 87.50000
  9  2019-09-01 94.66357  0.00000 94.73684
  10 2019-10-01 91.08696 96.00000 90.90909
  11 2019-11-01 93.91304  0.00000 89.65517
  12 2019-12-01 95.06641  0.00000 66.66667
  13 2020-01-01 93.78330  0.00000 80.00000
  14 2020-02-01 93.79433 96.00000 61.53846
  15 2020-03-01 73.78146 78.31021 72.11881
  16 2020-04-01 78.78385 85.03030 81.79539
  17 2020-05-01 80.90315 87.39603 84.70281
  18 2020-06-01 81.31169 87.91403 84.80170
  19 2020-07-01 83.67558 89.08008 85.10562
  20 2020-08-01 85.46405 90.17788 86.25371
  21 2020-09-01 92.21142 94.33515 91.46748
  22 2020-10-01 93.37967 94.82721 92.67418
  23 2020-11-01 93.45194 94.74855 92.82388
  24 2020-12-01 92.78409 93.86174 92.08834
  </code></pre>
  <p>I would like to graph the w_VidP, h_VidP, nwo_VidP, on a single graph with a y-axis titled &quot;% Vid&quot;. If anyone has a good idea to calculate a p-value to see if these three groups differ across time, that would be great? Graph would look like: <a href="https://imgur.com/a/yJ1WZkr" rel="nofollow noreferrer">https://imgur.com/a/yJ1WZkr</a>. Ignore the two y-axes. I just need one. I would like the three different groups to have three differently colored lines.</p>