From fbfffc0e47171cac03797340fde697a75a5afd61 Mon Sep 17 00:00:00 2001 From: Johannes Ranke Date: Mon, 26 Nov 2018 11:44:27 +0100 Subject: Add AIC method for mmkin column objects Static documentation rebuilt by pkgdown --- docs/reference/AIC.mmkin.html | 211 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 211 insertions(+) create mode 100644 docs/reference/AIC.mmkin.html (limited to 'docs/reference/AIC.mmkin.html') diff --git a/docs/reference/AIC.mmkin.html b/docs/reference/AIC.mmkin.html new file mode 100644 index 00000000..a2ce9885 --- /dev/null +++ b/docs/reference/AIC.mmkin.html @@ -0,0 +1,211 @@ + + + + + + + + +Calculated the AIC for a column of an mmkin object — AIC.mmkin • mkin + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
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Calculated the AIC for a column of an mmkin object

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Provides a convenient way to compare different kineti models fitted to the + same dataset.

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# S3 method for mmkin
+AIC(object, ..., k = 2)
+ +

Arguments

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object

An object of class mmkin, containing only one column.

…

For compatibility with the generic method

k

As in the generic method

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Value

+ +

As in the generic method (a numeric value for single fits, or a dataframe if + there are several fits in the column).

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Examples

+ 
  f <- mmkin(c("SFO", "FOMC", "DFOP"),
+    list("FOCUS A" = FOCUS_2006_A,
+         "FOCUS C" = FOCUS_2006_C))
+  AIC(f[1, "FOCUS A"]) # We get a single number for a single fit
#> [1] 55.32452

+  # For FOCUS A, the models fit almost equally well, so the higher the number
+  # of parameters, the higher (worse) the AIC
+  AIC(f[, "FOCUS A"])
#>      df      AIC
+#> SFO   3 55.32452
+#> FOMC  4 57.32477
+#> DFOP  5 59.32452
  AIC(f[, "FOCUS A"], k = 0) # If we do not penalize additional parameters, we get nearly the same
#>      df      AIC
+#> SFO   3 49.32452
+#> FOMC  4 49.32477
+#> DFOP  5 49.32452

+  # For FOCUS C, the more complex models fit better
+  AIC(f[, "FOCUS C"])
#>      df      AIC
+#> SFO   3 59.84675
+#> FOMC  4 44.70584
+#> DFOP  5 29.08369
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+ + + + + + -- cgit v1.2.1