u<- zoo(last1$r_wvht, order.by=last1$date)
plot(u, xaxt="n")
Error in plot.window(...) : need finite 'xlim' values
In addition: Warning messages:
1: In min(x) : no non-missing arguments to min; returning Inf
2: In max(x) : no non-missing arguments to max; returning -Inf
3: In min(x) : no non-missing arguments to min; returning Inf
4: In max(x) : no non-missing arguments to max; returning -Inf
5: In xy.coords(x, y, xlabel, ylabel, log) : NAs introduced by coercion
6: In min(x) : no non-missing arguments to min; returning Inf
7: In max(x) : no non-missing arguments to max; returning -Inf
On Tue, Jul 31, 2012 at 3:15 PM, Rui Barradas <ruipbarradas at sapo.pt> wrote:
Hello,
Adapted from the help page for plot.zoo
#library(zoo)
#z <- zoo(last$r_wvht, order.by=last$date)
plot(z, xaxt = "n")
tt <- time(z)
ix <- seq(1, length(tt), length.out=8)
axis(side = 1, at = tt[ix], labels = FALSE)
labs <- format(tt, "%Y-%b-%d")
axis(side = 1, at = tt[ix], labels = labs[ix], tcl = -0.7, cex.axis = 0.7,
las=2)
It looks better, but I wouldn't risk "good".
Rui Barradas
Em 31-07-2012 19:10, Yolande Tra escreveu:
Thanks.
This is an irregular time series. The line plot does not look good because
of the gap between 9/11/2008 and 10/12/2009. I think two plots would be
better.
How would you include the date on the x-axis. Right now it only gives one
tick mark, 2009.
Yolande
On Tue, Jul 31, 2012 at 2:01 PM, Rui Barradas <ruipbarradas at sapo.pt>
wrote:
Hello,
It only gives that error if you don't
last$date <- as.Date(last$date, format="%m/%d/%Y")
You must have dates, not character values.
Try it, then make a zoo object, then plot it.
Rui Barradas
Em 31-07-2012 18:54, Yolande Tra escreveu:
Thank you everyone for the attempt to solve the problem
It is an irregular series and insert NAs when a date is missing
library(zoo)
z <- zoo(last$r_wvht, order.by=last$date)
plot(z)
Error in plot.window(...) : need finite 'xlim' values
In addition: Warning messages:
1: In xy.coords(x, y, xlabel, ylabel, log) : NAs introduced by coercion
2: In min(x) : no non-missing arguments to min; returning Inf
3: In max(x) : no non-missing arguments to max; returning -Inf
I have also tried
z <- read.zoo("plot1.csv", header = TRUE, sep = ",", format =
"%m/%d/%Y")
plot(z)
The plot does not look good. It does not display the individual dates.
Y
Y
On Tue, Jul 31, 2012 at 1:33 PM, Rui Barradas <ruipbarradas at sapo.pt>
wrote:
Hello,
Sorry, I forgot the "time series" part of your question. You could
use
instead one of
# 1. type = "l" gives a line plot
plot(r_wvht ~ date, data = last, type="l")
# 2. use time series object plot
library(zoo)
z <- zoo(last$r_wvht, order.by=last$date)
plot(z)
Rui Barradas
Em 31-07-2012 18:27, Rui Barradas escreveu:
Hello,
You could use dput(), it's not your first post...
last <- structure(list(date = c("8/6/2008", "8/8/2008", "8/11/2008",
"8/13/2008", "8/14/2008", "8/18/2008", "8/20/2008", "8/27/2008",
"8/28/2008", "8/31/2008", "9/2/2008", "9/3/2008", "9/4/2008",
"9/5/2008", "9/8/2008", "9/11/2008", "10/12/2009", "10/14/2009",
"10/19/2009", "10/21/2009", "10/26/2009", "10/29/2009", "10/30/2009",
"11/2/2009", "11/3/2009", "11/4/2009", "11/11/2009", "11/13/2009"
), r_wvht = c(0.9766667, 0.7733333, 1.4833333, 1.5766667, 1.39,
0.78, 0.8383333, 1.77, 1.295, 2.41, 1.3166667, 1.3075, 1.39,
1.6333333, 1.2416667, 1.395, 0.8633333, 2.79, 1.0325, 1.965,
1.78, 1.5666667, 1.05, 1.4633333, 1.24, 1.0075, 1.605, 1.8475
)), .Names = c("date", "r_wvht"), class = "data.frame", row.names =
c("1",
"2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13",
"14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24",
"25", "26", "27", "28"))
last$date <- as.Date(last$date, format="%m/%d/%Y")
plot(r_wvht ~ date, data = last)
(You were forgetting that last$date was a character vector, not class
Date.)
Hope this helps,
Rui Barradas
Em 31-07-2012 18:02, Yolande Tra escreveu:
Hello,
This should be pretty simple but I cannot get it right. Please
point to
the
right code. Thanks.
last <- read.csv(file.path(dataDir,"******plot1.csv"), as.is
=T,stringsAsFactors
1 8/6/2008 0.9766667
2 8/8/2008 0.7733333
3 8/11/2008 1.4833333
4 8/13/2008 1.5766667
5 8/14/2008 1.3900000
6 8/18/2008 0.7800000
7 8/20/2008 0.8383333
8 8/27/2008 1.7700000
9 8/28/2008 1.2950000
10 8/31/2008 2.4100000
11 9/2/2008 1.3166667
12 9/3/2008 1.3075000
13 9/4/2008 1.3900000
14 9/5/2008 1.6333333
15 9/8/2008 1.2416667
16 9/11/2008 1.3950000
17 10/12/2009 0.8633333
18 10/14/2009 2.7900000
19 10/19/2009 1.0325000
20 10/21/2009 1.9650000
21 10/26/2009 1.7800000
22 10/29/2009 1.5666667
23 10/30/2009 1.0500000
24 11/2/2009 1.4633333
25 11/3/2009 1.2400000
26 11/4/2009 1.0075000
27 11/11/2009 1.6050000
28 11/13/2009 1.8475000
x<-as.vector(last$date)
x
[1] "8/6/2008" "8/8/2008" "8/11/2008" "8/13/2008"
"8/14/2008"
"8/18/2008" "8/20/2008" "8/27/2008"
[9] "8/28/2008" "8/31/2008" "9/2/2008" "9/3/2008" "9/4/2008"
"9/5/2008" "9/8/2008" "9/11/2008"
[17] "10/12/2009" "10/14/2009" "10/19/2009" "10/21/2009" "10/26/2009"
"10/29/2009" "10/30/2009" "11/2/2009"
[25] "11/3/2009" "11/4/2009" "11/11/2009" "11/13/2009"
y<-as.vector(last$r_wvht)
y
[1] 0.9766667 0.7733333 1.4833333 1.5766667 1.3900000 0.7800000
0.8383333
1.7700000 1.2950000 2.4100000
[11] 1.3166667 1.3075000 1.3900000 1.6333333 1.2416667 1.3950000
0.8633333
2.7900000 1.0325000 1.9650000
[21] 1.7800000 1.5666667 1.0500000 1.4633333 1.2400000 1.0075000
1.6050000
1.8475000
plot(x,y)
Error in plot.window(...) : need finite 'xlim' values
In addition: Warning messages:
1: In xy.coords(x, y, xlabel, ylabel, log) : NAs introduced by
coercion
2: In min(x) : no non-missing arguments to min; returning Inf
3: In max(x) : no non-missing arguments to max; returning -Inf
plot(x,y,xlim=c("6/8/2008","******11/13/2009"))
Error in plot.window(...) : invalid 'xlim' value
Y
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