Dear Jose, good morning, First of all, let me thank you for your extremely valuable help. Now I have a question for you:
I have a table containing two fields, the first one is date and the second one is number of transits of vessels. This table contains daily observations for the past 5 years. The date field has the following format: YYYY-MM-DD The number of transits field is a regular numeric field. How can I do to convert this table into a time series object? Best regards, Paul 2013/9/11 Jose Iparraguirre <jose.iparragui...@ageuk.org.uk> > Hi Paul, > > There are different packages in R to fit an ARIMA model. I would use the > forecast package. > In your case, perhaps you would want to explore SARIMA models to include > seasonal components? > Anyhow, the first port of call could be the auto.arima() function to > select the best fitting representation according to AIC, AICc or BIC -but > explore other representations as well. > To fit the models use the function Arima (note the capital "A"). The > documentation in the package is very clear and comprehensive; the authors > (Rob J Hyndman and George Athanasopoulos) published a free on-line book > which will also help you: http://otexts.com/fpp/. > Hope this helps, > > José > > > Prof. José Iparraguirre > Chief Economist > Age UK > > > > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] > On Behalf Of Paul Bernal > Sent: 10 September 2013 22:54 > To: r-help@r-project.org > Subject: [R] Fitting Arima Model to Daily Time Series > > Hello everyone, > > Hope everyone is doing great. I would like to know how to use the arima > function in R to fit arima or arma models to daily data, that is, with > period = 365, this taking into account the fact that I have 5 years worth > of daily data (so 365 * 5 = my number of observations). > > All I want is a very general line of code of I I would do to fit the arima > model. > > Any help will be greatly appreciated, > > Have a wonderful day, > > Paul > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > > The Wireless from Age UK | Radio for grown-ups. > > www.ageuk.org.uk/thewireless > > > If youre looking for a radio station that offers real variety, tune in to > The Wireless from Age UK. > Whether you choose to listen through the website at > www.ageuk.org.uk/thewireless, on digital radio (currently available in > London and Yorkshire) or through our TuneIn Radio app, you can look forward > to an inspiring mix of music, conversation and useful information 24 hours > a day. > > > > > ------------------------------- > Age UK is a registered charity and company limited by guarantee, > (registered charity number 1128267, registered company number 6825798). > Registered office: Tavis House, 1-6 Tavistock Square, London WC1H 9NA. > > For the purposes of promoting Age UK Insurance, Age UK is an Appointed > Representative of Age UK Enterprises Limited, Age UK is an Introducer > Appointed Representative of JLT Benefit Solutions Limited and Simplyhealth > Access for the purposes of introducing potential annuity and health > cash plans customers respectively. Age UK Enterprises Limited, JLT > Benefit Solutions Limited and Simplyhealth Access are all authorised and > regulated by the Financial Services Authority. > ------------------------------ > > This email and any files transmitted with it are confidential and intended > solely for the use of the individual or entity to whom they are > addressed. If you receive a message in error, please advise the sender and > delete immediately. > > Except where this email is sent in the usual course of our business, any > opinions expressed in this email are those of the author and do not > necessarily reflect the opinions of Age UK or its subsidiaries and > associated companies. Age UK monitors all e-mail transmissions passing > through its network and may block or modify mails which are deemed to be > unsuitable. > > Age Concern England (charity number 261794) and Help the Aged (charity > number 272786) and their trading and other associated companies merged > on 1st April 2009. Together they have formed the Age UK Group, dedicated > to improving the lives of people in later life. The three national > Age Concerns in Scotland, Northern Ireland and Wales have also merged with > Help the Aged in these nations to form three registered charities: > Age Scotland, Age NI, Age Cymru. > > > > > [[alternative HTML version deleted]]
______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
