similar to: Inconsistent lattice scales$x$at,label behaviour for POSIXct

I'm trying to produce a barchart plot with groups, in which each group is placed in a particular time scale in x-axis. If I use barchart directly it does not take the time scale. I've tried with xyplot and adding a panel.barchart, I have the bars in the right place, but not the three groups I'm trying to produce. I've tried defining panel and panel.group, but can't get it to

I am using 'xyplot' in lattice to plot some data where the x-axis is a POSIXct date. I have data which spans a 6 month period, but when I plot it, only the last month is printed on the right hand side of the axis. I would have expected that at least I would have a beginning and an ending point so that I have a point of reference as to the time that the data spans. Here is some test

Dear all, I am struggling to modify the axis labels/ticks in a panel provided to xyplot. To begin with, I do not know the equivalent of the xaxt="n" directive for panels that would set the stage for no default x axis being drawn. My goal is to draw ticks and custom formatted labels at certain hours of the week. When I execute the code below, I get an error message in the plot window that

Dear list, I have observed a change in the behaviour of the scales-argument tck of xyplot() after having installed R 2.4.0 (for version info see below). The help page of xyplot() says about the scales-argument tck: 'tck' numeric to control length of tick marks. Can be a vector of length 2, to control left/bottom and right/top separately. But if I issue xyplot( y ~ x, scales=

Some time ago, I posted a note about what I considered to be a bug in axis.POSIXt() for R 2.8.x, relating to whether timezones in the data are obeyed on the axes. A link to that note, and to a quick and helpful response, is at the following URL http://www.nabble.com/patch-for-axis.POSIXct-%28related-to-timezones%29-td22338700.html#a22338700 Note that R 2.9.0 has been adjusted to help with

I am probably missing something quite obvious, but any help would be appreciated. I am continually getting people misreading the lattice plots because they are expecting the strip (with the factor names in them) to be below the graph. Is there anyway of achieving this. Secondly, from a more personal note I find the grid formed by the axes to be a bit overpowering and would like to make it a

Hi I'm doing a xyplot and I wand to reduce the number of tick marks in the x axis. My x axis are month and I want to reduce the 12 tick marks to 4. I used the scales argument but it doesn't seem to work, althougth it works on y axis if I use scales=list(tick.number=4).

I can't get the scales parameter in xyplot of lattice to work as I expected. I'm using R-2.1.0 and lattice 0.11-8. There should be year labels from 1992 to 2004 for the x axis in the plot below, but instead only a few of them appear, and in the wrong spots, as if the coordinate system has changed after finishing with the panel function. library(chron) library(lattice) # vertical grid

I've run into a problem with the datetime axis generated by axis.POSIXct. It appears a similar issue was discussed in October 2003 under the subject line "datetime data and plotting" (see https://stat.ethz.ch/pipermail/r-help/2003-October/039071.html), but I wasn't able to determine whether there is a straightforward solution. The code below produces a graph with apparently

Hello, I have a ggplot that has the looks of the plot that I want, but it doesn't have the right layout. The data is an ordered melted dataframe: - ID - type (to use for a faced grid) - time - type - time - value (POSIXct) - pos (to use for a faced grid, this is an index to split the plot) The goal of the plot is to create a time line for each ID (different points of time). The ID's

Hi, Given that cdplot() is used to produce the conditional density of a categorical y along a numerical x, it seems natural that it could be used with a date or time x (such as 'POSIXct'). Is this desirable? If so, I've created a patch that would allow this, by coercing the POSIXct x variable to produce the density, but use the original POSIXct x to draw the x axis. Index:

Dear all, how come the first loop in the below fails, but the second performs as expected? days <- as.Date( c("2000-01-01", "2000-01-02") ) for(day in days) { as.POSIXct(day) } for( n in 1:length(days) ) { show(as.POSIXct(days[n])) } Many thanks, Jo [[alternative HTML version deleted]]

I would like to create an xyplot with varying y-axis limits and horizontal labels at the y-axis tickmarks. The following does not seem to work, although I think it should, going by the documentation for par. R version 2.5.1, Windows XP Prof. Thanks for a clue. Andreas Krause library(lattice) # axis labels for y-axis are horizontal xyplot(Sepal.Length ~ Sepal.Width | Species, data=iris) #

Dear R-devel, I have tested the code below on R v3.3.2 and v3.3.3 on Mac and Windows. x <- c("2017-01-01 05:00:02", "2017-01-02 03 :M:00") # note the ? :M? in 2nd value as.POSIXct(x) # [1] "2017-01-01 GMT" "2017-01-02 GMT? The time info is lost on the first index as well. And it happens *silently*. On the other hand, if I do: lapply(x, as.POSIXct) #?[[1]]

Hello list, here is what I stumbled upon: 1> test <- data.frame(time=as.POSIXct((1:2),origin="2000-1-1")) 1> test time 1 2000-01-01 00:00:01 2 2000-01-01 00:00:02 1> rbind(test,b=1:2) Fehler in as.POSIXct.numeric(value) : 'origin' muss angegeben werden When I try to attach an additional row to a dataframe with a row containing dates I get the

Hello, I am trying to alter the way in which lattice functions (specifically xyplot) print the axis labels when one uses the 'scales' parameter. I can obtain the effect I want by using scales=list(y=list(log=10, labels=expression(yvalues))) where yvalues are the values that would have been printed as the y-axis labels if the "labels" argument had not been present. To help

Hi , When I sort a vector of POSIXct values in R-2.3.0 and R-2.3.1, I get a vector of numeric values and this gets some of my code to crash (class object creation). Is that a R bug? In the mean time. I'll try to override the sort function for the POSIXct objects. Thanks, Patrick Gu?vel Head of quantitative research for electronic trading This message and any attachments (the

Hi , When I sort a vector of POSIXct values in R-2.3.0 and R-2.3.1, I get a vector of numeric values and this gets some of my code to crash (class object creation). Is that a R bug? In the mean time. I'll try to override the sort function for the POSIXct objects. Thanks, Patrick Gu?vel Head of quantitative research for electronic trading This message and any attachments (the

Friends I have an xts that I wish to access. Browse[2]> DATA.ba[[p]]["2012-03-20 00:59:57","bid"] bid 2012-03-20 00:59:57 1.4993 So far so good. Now putting the index into a variable: Browse[2]> Time [1] "2012-03-20 00:59:57 NZDT" Browse[2]> DATA.ba[[p]][Time, "bid"] bid Where has it gone? Looking closer....

I using lattice to make some plots and I want to make the y-axis on some of these plots use a log scale. In the following plot: x <- 1:10 y <- 2^x xyplot(log10(y) ~ x) I get tick marks on the y-axis at 0.5, 1.0, 1.5, 2.0, 2.5, and 3.0. I would rather have just 3 tick marks at 1.0, 2.0, and 3.0 but labeled 10, 100, and 1000. I know this can be done using the "at" and