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error while extracting the p-value from adf.test
6 messages · Sarah Goslee, R. Michael Weylandt, Yuan, Rebecca +1 more
Hi, When I look at ?adf.test I see: A list with class "htest" containing the following components: statistic the value of the test statistic. parameter the lag order. p.value the p-value of the test. method a character string indicating what type of test was performed. data.name a character string giving the name of the data. alternative a character string describing the alternative hypothesis So why don't you try ht$p.value instead, just as the help file tells you? Sarah On Fri, Mar 22, 2013 at 10:03 AM, Yuan, Rebecca
<rebecca.yuan at bankofamerica.com> wrote:
Hello all, I tried to extract the p-value from adf.test in tseries; however, I got the error message such as
ht=adf.test(list.var$aa) ht$p-value
Error in ht$p - value : non-numeric argument to binary operator
ht
Augmented Dickey-Fuller Test
data: list.var$aa
Dickey-Fuller = -2.3147, Lag order = 4, p-value = 0.4461
alternative hypothesis: stationary
ht$data
[1] "list.var$aa"
ht$p-value
Error in ht$p - value : non-numeric argument to binary operator
ht$p
NULL I do not have problem extracting the data in ht, but why not p-value? Is that because the "-" between "p" and "value"? Thanks, Rebecca
-- Sarah Goslee http://www.functionaldiversity.org
On Fri, Mar 22, 2013 at 2:03 PM, Yuan, Rebecca
<rebecca.yuan at bankofamerica.com> wrote:
Hello all, I tried to extract the p-value from adf.test in tseries; however, I got the error message such as
ht=adf.test(list.var$aa) ht$p-value
Error in ht$p - value : non-numeric argument to binary operator
ht
Augmented Dickey-Fuller Test
data: list.var$aa
Dickey-Fuller = -2.3147, Lag order = 4, p-value = 0.4461
alternative hypothesis: stationary
ht$data
[1] "list.var$aa"
ht$p-value
Error in ht$p - value : non-numeric argument to binary operator
ht$p
NULL I do not have problem extracting the data in ht, but why not p-value? Is that because the "-" between "p" and "value"?
Basically yes: x$p-value parses as x[["p", exact = FALSE]] - value instead of x[["p-value", exact = FALSE]] because `p-value` is not a syntactic name. I think a more common name for R would be p.value which is perfectly fine. MW
Thanks,
Rebecca
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______________________________________________ R-help at 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.
Hello Sarah, Thanks! I will look into help next time before sending out the question. Thanks, Rebecca -----Original Message----- From: Sarah Goslee [mailto:sarah.goslee at gmail.com] Sent: Friday, March 22, 2013 10:22 AM To: Yuan, Rebecca Cc: R help Subject: Re: [R] error while extracting the p-value from adf.test Hi, When I look at ?adf.test I see: A list with class "htest" containing the following components: statistic the value of the test statistic. parameter the lag order. p.value the p-value of the test. method a character string indicating what type of test was performed. data.name a character string giving the name of the data. alternative a character string describing the alternative hypothesis So why don't you try ht$p.value instead, just as the help file tells you? Sarah
On Fri, Mar 22, 2013 at 10:03 AM, Yuan, Rebecca <rebecca.yuan at bankofamerica.com> wrote:
Hello all, I tried to extract the p-value from adf.test in tseries; however, I got the error message such as
ht=adf.test(list.var$aa) ht$p-value
Error in ht$p - value : non-numeric argument to binary operator
ht
Augmented Dickey-Fuller Test
data: list.var$aa
Dickey-Fuller = -2.3147, Lag order = 4, p-value = 0.4461 alternative
hypothesis: stationary
ht$data
[1] "list.var$aa"
ht$p-value
Error in ht$p - value : non-numeric argument to binary operator
ht$p
NULL I do not have problem extracting the data in ht, but why not p-value? Is that because the "-" between "p" and "value"? Thanks, Rebecca
-- Sarah Goslee http://www.functionaldiversity.org ---------------------------------------------------------------------- This message, and any attachments, is for the intended r...{{dropped:2}}
Yes, it should be $p.value Have a look at the components here:
names(ht)
Jos? Jos? Iparraguirre Chief Economist Age UK T 020 303 31482 E Jose.Iparraguirre at ageuk.org.uk Twitter @jose.iparraguirre at ageuk Tavis House, 1- 6 Tavistock Square London, WC1H 9NB www.ageuk.org.uk?| ageukblog.org.uk | @ageukcampaigns -----Original Message----- From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Yuan, Rebecca Sent: 22 March 2013 14:03 To: R help Subject: [R] error while extracting the p-value from adf.test Hello all, I tried to extract the p-value from adf.test in tseries; however, I got the error message such as
ht=adf.test(list.var$aa) ht$p-value
Error in ht$p - value : non-numeric argument to binary operator
ht
Augmented Dickey-Fuller Test data: list.var$aa Dickey-Fuller = -2.3147, Lag order = 4, p-value = 0.4461 alternative hypothesis: stationary
ht$data
[1] "list.var$aa"
ht$p-value
Error in ht$p - value : non-numeric argument to binary operator
ht$p
NULL
I do not have problem extracting the data in ht, but why not p-value? Is that because the "-" between "p" and "value"?
Thanks,
Rebecca
----------------------------------------------------------------------
This message, and any attachments, is for the intended r...{{dropped:5}}
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Hello Jos?, This is a much convenient way of looking at the components! Thanks very much! Cheers, Rebecca -----Original Message----- From: Jose Iparraguirre [mailto:Jose.Iparraguirre at ageuk.org.uk] Sent: Friday, March 22, 2013 11:25 AM To: Yuan, Rebecca; R help Subject: RE: error while extracting the p-value from adf.test Yes, it should be $p.value Have a look at the components here:
names(ht)
Jos? Jos? Iparraguirre Chief Economist Age UK T 020 303 31482 E Jose.Iparraguirre at ageuk.org.uk Twitter @jose.iparraguirre at ageuk Tavis House, 1- 6 Tavistock Square London, WC1H 9NB www.ageuk.org.uk?| ageukblog.org.uk | @ageukcampaigns -----Original Message----- From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Yuan, Rebecca Sent: 22 March 2013 14:03 To: R help Subject: [R] error while extracting the p-value from adf.test Hello all, I tried to extract the p-value from adf.test in tseries; however, I got the error message such as
ht=adf.test(list.var$aa) ht$p-value
Error in ht$p - value : non-numeric argument to binary operator
ht
Augmented Dickey-Fuller Test data: list.var$aa Dickey-Fuller = -2.3147, Lag order = 4, p-value = 0.4461 alternative hypothesis: stationary
ht$data
[1] "list.var$aa"
ht$p-value
Error in ht$p - value : non-numeric argument to binary operator
ht$p
NULL
I do not have problem extracting the data in ht, but why not p-value? Is that because the "-" between "p" and "value"?
Thanks,
Rebecca
----------------------------------------------------------------------
This message, and any attachments, is for the intended r...{{dropped:5}}
______________________________________________
R-help at 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.
Please donate to the Syria Crisis Appeal by text or online:
To donate ?5 by mobile, text SYRIA to 70800. To donate online, please visit
http://www.ageinternational.org.uk/syria
Over one million refugees are desperately in need of water, food, healthcare, warm clothing, blankets and shelter; Age International urgently needs your support to help affected older refugees.
Age International is a subsidiary charity of Age UK and a member of the Disasters Emergency Committee (DEC).
The DEC launches and co-ordinates national fundraising appeals for public donations on behalf of its member agencies.
Texts cost ?5 plus one standard rate message. Age International will receive a minimum of ?4.96.
More info at ageinternational.org.uk/SyriaTerms
-------------------------------
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.
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