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Re: Plots points smoothing


From: Doug Stewart
Subject: Re: Plots points smoothing
Date: Thu, 05 Jun 2008 19:11:45 -0400
User-agent: Thunderbird 2.0.0.14 (X11/20080505)

Ben Abbott wrote:
On Jun 5, 2008, at 3:55 PM, Oscar Bayona Candel wrote:

Hi all,

I want to customize a graph with two options. The first one is to smooth lines that union the diferent time points.

The second, if it is posible is to envelope, and connect the maximum points with the minimum smothing this union.

If you run this file you will see "peaks" I want to elimite them and make more homogeneus graphic.


function R1
a=[100 247.6020083 286.3675761 272.3062174 80.26950483 139.8426301 78.34706759 100 239.0873028 123.4637728 140.7330533 120.625691 -10.4388691 23.13858934 100 33.43627631 4.81526546 112.0913254 47.42491211 229.1219878 144.4392328 100 14.48044685 48.06236485 149.4893629 70.95881807 143.6070638 126.1001037 100 192.8579963 41.88150753 117.6747567 130.9839551 104.7505698 173.850395 100 63.98035103 71.86857643 220.4943286 102.7295789 136.8557571 149.045101 100 222.5996084 56.4790972 134.3171959 236.5824703 62.41059324 8.088869066 100 23.06745092 41.26546571 79.37406245 275.9073594 272.5928681 84.63212985 100 76.9210449 279.2402298 108.1317323 56.18829819 144.9506979 66.32051613 100 -113.6787362 118.8788474 40.85110524 43.61666578 74.49854451 234.9635424 100 75.83113309 5.37011882 113.554889 133.3502406 63.76897457 -76.46719427 100 158.8205968 221.6742911 -7.952528826 264.7801533 205.9813716 171.3093441 100 -104.513704 124.6029514 25.12435003 -62.06899129 62.22258095 39.10232772 100 79.34780168 291.6122404 192.8458895 200.5386263 105.4680114 -2.853494564 100 97.7905608 58.03397026 -10.99872902 106.0123175 55.37186651 -35.38964088 100 158.791745 167.2811586 115.5301998 46.18000075 -35.83984053 44.29784635 100 -49.76741488 -38.13763622 42.6206969 170.1760672 172.5956422 198.2358879 100 49.37659496 33.15366038 -44.28011181 49.47050005 137.0366161 59.20602828 100 -97.30115079 41.86501017 137.6105498 110.1227608 108.4026112 243.6586799 100 -39.35000333 166.3355026 123.8335488 231.4431456 -24.05193574 76.75505041 100 -19.05642395 141.7483176 24.58494504 54.0625926 93.27244676 225.7758027 100 36.11136484 -49.61304664 82.02096518 90.76583852 -129.6667387 -7.992638563 100 83.00767778 -45.72753514 102.2809656 140.6478623 214.7422103 176.5430224 100 55.49177935 181.4050029 42.49151968 199.1295464 19.25956558 94.3691482];

plot(a')


hmmm ... I'm  not sure about what you hope to do, but I'll take a shot.

  >   x = linspace (0, 1, size(a, 2));
  >   y = linspace (0, 1, 10*size(a, 2));
  >   b = interp1 (x.', a.', y.', "spline").';
  >   c = max (b);
  >   plot(y, b, y, c)

Is this what you're looking for?

Ben
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Or does he want to filter out the high frequency components?
Doug


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