08 PM
To: r-help@r-project.org
Subject: Re: [R] Log difference in a dataframe column
Just learning so excuse me if I'm being too basic here. But I'm wondering how
should I know that as.ts would be needed for lag ? Is there a thought
process or way to inspect that I should have gone throug
Just learning so excuse me if I'm being too basic here. But I'm wondering how
should I know that as.ts would be needed for lag ? Is there a thought
process or way to inspect that I should have gone through to know that log
would work on y[,5] but lag would not work on [,5] ?
Is the general rule
On 2011-01-17 07:44, eric wrote:
What am I doing wrong here ? And what's the right way to calculate the log
differences in a column in a df ?
# first 3 rows of 5000 rows
y[1:3,]
Date Open High Low Close
1 1983-03-30 29.96 30.51 29.96 30.35
2 1983-03-31 30.35 30.55 30.20 30.24
3 1983-04-0
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