r - Converting xts to ts: Error in Round(frequency) -

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i have imported csv data have turned xts object. if try convert ts object (with end goal of using functions acf) get:

"error in round(frequency) : non-numeric argument mathematical function"

the code convert is:

library("zoo") #working milliseconds op <- options(digits.secs=3)  #rename function clean_perfmon = function(x, servername) {   names(x)[names(x)=="x.pdh.csv.4.0...coordinated.universal.time..0."] <- "time"   x$time = strptime(x$time, "%m/%d/%y %h:%m:%os")   return(x) }  web02 = read.csv("/home/kbrandt/desktop/shared/web02_2011_07_20_1.csv") web02 = clean_perfmon(web02, "ny.web02") web02ts = xts(web02[,-1], web02[,"time"])

the time regular, variation in ms:

time(web02ts)[1:3] [1] "2011-07-20 11:21:50.459 edt" "2011-07-20 11:21:51.457 edt" "2011-07-20 11:21:52.456 edt"

some of data has na points:

> web02ts[1:3,1]                         x..ny.web02.process.idle....processor.time 2011-07-20 11:21:50.459                                         na 2011-07-20 11:21:51.457                                   1134.819 2011-07-20 11:21:52.456                                   1374.877

update:
changing per second resolution, , non-na subset doesn't help:

> as.ts(web02ts[2:10,1]) error in round(frequency) : non-numeric argument mathematical function > web02ts[2:10,1]                     x..ny.web02.process.idle....processor.time 2011-07-20 11:21:51                                   1134.819 2011-07-20 11:21:52                                   1374.877 2011-07-20 11:21:53                                   1060.842 2011-07-20 11:21:54                                   1067.092 2011-07-20 11:21:55                                   1195.205 2011-07-20 11:21:56                                   1223.328 2011-07-20 11:21:57                                   1121.774 2011-07-20 11:21:58                                   1187.393 2011-07-20 11:21:59                                   1378.001 >

also, frequency(web02ts) returns null.

a xts/zoo object must regular have non-null frequency.

you don't show how changed per-second resolution if tried via options(digits.secs=0), won't work because affects printing. need this:

# example data set.seed(21) web02ts <- xts(rnorm(10), sys.time()+1:10+runif(10)/3)  web02ts_reg <- align.time(web02ts,1) frequency(web02ts_reg) # [1] 1 as.ts(web02ts_reg) # time series: # start = 1  # end = 10  # frequency = 1  #  [1]  0.793013171  0.522251264  1.746222241 -1.271336123  2.197389533 #  [6]  0.433130777 -1.570199630 -0.934905667  0.063493345 -0.002393336

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