在R中使用forecast（）时获取预测值

Question

我在R中做了一个forecast（），我只想要预测值。我怎样才能做到这一点？如果我使用forecast$means，我会得到额外的信息，而不是像矢量那样的可用数据对象。

suppressMessages(require('forecast'))
suppressMessages(require('rjson'))

# Load data. Let user choose what file they want to input.
my_json = "[1,2,3,4,5]"

my_data = fromJSON(my_json)

my_df = data.frame(my_data)

# Plot the decomposed time series. Let user choose their season length.
forecasted_data = forecast(ts(my_df[,1]), h=5)

print(forecasted_data$mean)

当前输出：

Time Series:
Start = 6 
End = 10 
Frequency = 1 
[1] 4.9999 4.9999 4.9999 4.9999 4.9999

期望的输出：

[1] 4.9999 4.9999 4.9999 4.9999 4.9999

Answer 1

尝试通过将ts属性强制转换为简单的numeric向量来剥离as.numeric(forecasted_data$mean) 属性：

{{1}}

Answer 2

Forecasted_data‹-data.frame(forecasted_data)
View(forecasted_data)