Converting data frame to zoo

Thanks Gabor. I figured out what went wrong. The culprit turns out to be
the headers in my data. read.zoo doesn't recognize column headers and
complains

Error in read.zoo("C:\\.......\\table.csv",  :
       index contains NAs

Or is there an option as in read.table(x, header=...) ?

After the header line is removed it works fine.

H.

"Gabor Grothendieck" <ggrothendieck at gmail.com> 7/7/2006 10:22 AM

Check out read.zoo in the zoo package.

On 7/7/06, Horace Tso <Horace.Tso at pgn.com> wrote:

Dear list,

I know this is really basic question but I just couldn't get

anything

to work. (I did a R site search with keywords "zoo" and "data frame"

but

the server timed out on me.)

I have a time series which has the following (typical) format,

DATE               Open          High          Low          Close
 Volume
01-JAN-2006     5.25           5.25          5.25          5.25
 256
....

I read the data in from a csv file with read.csv() and it defaulted

to

a data frame which I thought is fine. Now I want to convert it to zoo

so

I did

x <- zoo(my.df)

which works just fine. But the Date column has been turned into a
factor. Is there a way to make it into a Date. I've tried,

x$Date <- as.Date(x$Date)

but R complains that

Error in fromchar(x) : character string is not in a standard
unambiguous format

Thanks in advance.

Horace W. Tso