Hello,
By running the code of the OP, I've come to the conclusion that
print.forecast calls print.data.frame:
forecast:::print.forecast
function (x, ...)
{
print(as.data.frame(x))
}
<bytecode: 0x0000000007ac9cd0>
<environment: namespace:forecast>
But I'm unable to get what the OP wants by call as.data.frame(...).
Here is the code with some made up data.
library(forecast)
library(tseries)
DAT <- data.frame(x = sample(100, 100, TRUE))
TSdata <- ts(DAT[,1], start=c(1994,10), frequency=12)
TSmodel <- nnetar(TSdata)
TSmodelForecast <- forecast(TSmodel, h=24)
TSmodelForecast
str(as.data.frame(TSmodelForecast))
Hope this helps,
Rui Barradas
Em 17-03-2017 20:48, Jim Lemon escreveu:
Hi Paul,
When manipulating any R object, the first thing to ascertain is what it is:
class(TSmodelForecast)
should give you useful information.
str(TSmodelForecast)
should give you more. Because of the wealth of defined data structures
in R, it is difficult to manipulate them without this information. I
suspect that your output is something like a time series object, and
once that is known, it should not be too hard to display its contents
in the way you want.
Jim
On Sat, Mar 18, 2017 at 7:12 AM, Paul Bernal <paulberna...@gmail.com> wrote:
Dear Jim,
Hope you are doing great. I tried to do what you suggested but R send an
error message saying that $ operator is invalid for atomic vectors.
The format of the forecasts are as follows: forecasted years are as rows,
and forecasted months are in columns what I want to do is to have two
colums, one with the forecasted dates in (MMM-YYYY format) and the second
column with the actual forecast results.
The output that is giving me hard time is the forecast output from nnetar
model.
Thanks for your valuable support,
Best of regards,
Paul
2017-03-16 18:23 GMT-05:00 Jim Lemon <drjimle...@gmail.com>:
Hi Paul,
It looks like the information that is printed is in:
TSModelForecast$mean
If str(TSModelForecast$mean) returns something like a list with two
components, you can probably use something like this:
paste(format(TSModelForecast$mean$Date,"%b-%Y"),
TSModelForecast$mean$Forecast,sep="-",collapse="\n")
It also might be in TSModelForecast$fitted
Jim
On Fri, Mar 17, 2017 at 5:34 AM, Paul Bernal <paulberna...@gmail.com>
wrote:
Dear friends,
I am currently using R version 3.3.3 (64-bit) and used the following
code
to generate forecasts:
library(forecast)
library(tseries)
‘tseries’ version: 0.10-35
‘tseries’ is a package for time series analysis and computational
finance.
See ‘library(help="tseries")’ for details.
DAT<-read.csv("TrainingData.csv")
TSdata<-ts(DAT[,1], start=c(1994,10), frequency=12)
TSmodel<-nnetar(TSdata)
TSmodelForecast<-forecast(TSmodel, h=24)
TSmodelForecast
The problem is that the output comes in this fashion:
Jan Feb Mar Apr May Jun Jul Aug
Sep Oct
2017 10 20 15 40 9 8 21
21
19 18
2018 34 15 7 6 10 11
The format I would like to have is the following:
Date Forecast
Jan-2017 10
Feb-2017 20
Mar-2017 15
Apr-2017 40
May-2017 9
Jun-2017 8
Jul-2017 21
Aug-2017 21
Sep-2017 19
etc etc
Is there a way to make the results look like this?
Attached is a dataset as a reference.
Best regards,
Paul
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