擅长:python、mysql、java
<p>在信号包中使用sgolayfilt功能:</p>
<pre><code>library(signal)
packageVersion("signal")
## [1] ‘0.7.7’
apply(X, 2, sgolayfilt, n = 5)
## [,1] [,2]
## [1,] -4.789006e-07 0.9999979
## [2,] 1.108845e-01 0.9938420
## [3,] 2.203949e-01 0.9753974
## [4,] 3.271904e-01 0.9449446
## [5,] 4.299508e-01 0.9028379
## [6,] 5.274085e-01 0.8495965
## [7,] 6.183617e-01 0.7858770
## [8,] 7.016887e-01 0.7124653
## [9,] 7.763780e-01 0.6302812
## [10,] 8.414695e-01 0.5403008
</code></pre>