CODEWITHSUNDEEP
rtime-seriesdata-visualizationforecasting
wishihadabettername
wishihadabettername

Reputation: 14751

Unable to change plot title for exponential model (from forecast)

I have an ets object (obtained with the ets() function from forecast) and want to plot it.

fit <- ets (myTimeSeries) # myTimeSeries obtained via ts()
plot (fit) # works fine
plot (fit, main="my title") # fails with error

The error is:

Error in plotts(x = x, y = y, plot.type = plot.type, xy.labels = xy.labels, : formal argument "main" matched by multiple actual arguments

I don't understand what I need to do, the attribute is shown in the help.

My loaded packages (in case there is a conflict about which plot() implementation is called):

> sessionInfo()
R version 3.1.0 (2014-04-10)
Platform: x86_64-w64-mingw32/x64 (64-bit)

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] lattice_0.20-29  forecast_5.4     timeDate_3010.98 zoo_1.7-11       ggplot2_0.9.3.1 

loaded via a namespace (and not attached):
 [1] colorspace_1.2-4 digest_0.6.4     fracdiff_1.4-2   grid_3.1.0       gtable_0.1.2    
 [6] labeling_0.2     MASS_7.3-31      munsell_0.4.2    nnet_7.3-8       parallel_3.1.0  
[11] plyr_1.8.1       proto_0.3-10     quadprog_1.5-5   Rcpp_0.11.1      reshape2_1.4    
[16] scales_0.2.4     stringr_0.6.2    tools_3.1.0      tseries_0.10-32

Upvotes: 0

Views: 702

Answers (1)

Mike
Mike

Reputation: 26

Here's an option that would work if you really did want to add a title to a plot of the fit function specified in the question (tested with the USAccDeaths data):

> plot.ts(cbind(observed = myTimeSeries, level = fit$states[, 1], season = fit$states[, "s1"]), main = "New Title")

Upvotes: 1

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