similar to: Help with matplot

> > Maybe I'm missing something really obvious here, but I was unable to > > create a matrix out of POSIXct object(s). > > Perhaps that deserves a separate discussion...? > Can you provide an example? ------ #date and time objects x = Sys.Date () + 1:16 y = as.POSIXct (x) #matrices str (matrix (x, 4, 4) ) str (matrix (y, 4, 4) ) ------ Creating a matrix from a Date

Hello, All: ????? Roughly a decade ago, I added "matplot.Date" and "matplot.POSIXct" to the "fda" package, so we could get reasonable labeling of the horizontal axis when "x" was class "Date" or "POSIXct".? I also added a local version of "matplot.default" that just changes the defaults for "xlab" and

>>>>> Spencer Graves >>>>> on Mon, 27 Jan 2020 23:02:28 -0600 writes: > ????? Thanks for the reply. > On 2020-01-27 19:56, Abby Spurdle wrote: >> Maybe I'm missing something really obvious here, but I was unable to >> create a matrix out of POSIXct object(s). >> Perhaps that deserves a separate discussion...? yes,

On 2020-01-28 05:13, Martin Maechler wrote: >>>>>> Spencer Graves >>>>>> on Mon, 27 Jan 2020 23:02:28 -0600 writes: <snip> > > Still, as Abby mentioned, turning a simple function into the > default method of an S3 generic is easy to do, but comes with a > bit of cost, not just S3 dispatch which typically is negligable in > graphics,

Hello, everyone. I am trying to show the correlation matrix using color2D.matplot(). And I want to map (0,1) to (dark red to dark green). But by default color2D.matplot() will map(min element of given matrix, max element of given matrix) to (dark red to dark green). Can anyone help me with this issue? Thanks a lot! Youcheng Lin ____________ [[alternative HTML version deleted]]

can I use matplot on each panel of a lattice graphic? How? <https://academico.unicordoba.edu.co/squirrelmail/src/compose.php?send_to=r-help%40stat.math.ethz.ch>

I used matplot to plot multiple lines (over 300 lines). I'd like to draw a polygon and shade the area between upper and lower boundary. I know the plot function works pretty well with polygon(). How about matplot? I have too many lines and my upper/lower boundaries are formed by many different lines. Matplot seems to be more efficient in plotting our all the lines...or perhaps I'm wrong

Hello R users -- I am using matplot to prepare graphs and cannot find a way to use (for example) box(lwd=3) within the matplot command and instead have been setting the box line width after drawing the graph, by using box(lwd = 3). Looking over the ?par options and the matplot() help I do not see a way to set box width within matplot. Is there such an option? Thanks for suggestions,

Hi, I have the following script for matplot matplot(battingagg$X, battingagg[, c("HR","RBI","X2B", "BB", "R", "SB")], type="b",lty=4,lwd=2, col=1:4,xlab = "Year", ylab "(1)HRs, (2)RBIs, (3)DOUBLES,(4)BB,(5)Runs,(6) BB", pty="m",sub = "Figure 2. Plot of Selected Offensive Baseball

Hello, I've been trying to use ggplot, but I cannot seem to get my data in the correct form. I usually have a vector x, and a matrix y and I would usually use matplot(x,y) to plot the columns of y against x. Now, if i understand correctly, I should cast x and y into a data.frame and do something like ggplot(x,y,data=data). I think I'm missing something here: do I really need to

Hi, I am trying to plot a large matrix by using color2D.matplot. A substantial part of the matrix has no data (NAs). However, when trying to plot it, I get an error. It is only when I change all NAs to zeros that it works, but that in some way introduces 'wrong' data. Is there any workaround this? Thank you in advance!!! Bernardo -- View this message in context:

I am using color2D.matplot to plot a matrix about 400 by 200. The values in the matrix are 0:5 and NA. The resulting plot is not color, but shaded b/w. I tried to figure out how to add colors, I would like something like c(blue, green, red, cyan, green) #example motifx <- matrix(NA, nrow=100,ncol=20) motifx[,1:5] <- 1 motifx[,6:10] <- 2 motifx[,11:15] <- 3 motifx[,15:19] <- 4

n <- 63 a <- 1:n x <- a-1 y <- outer(x,a) matplot(x,y,type='l') Warning message: In matplot(x, y, type = "l") : default 'pch' is smaller than number of columns and hence recycled Why is it complaining if I specifically ask for type="l", so no pch involved? Annoyance or feature? The fix (if needed) is simple. In the matplot code change: if

Hi list, I know that points involving NAs are not plotted in 'matplot', but when I plot them as lines, I still want the lines to connect all the points (i.e. not broken where there are NAs).? Please see the example below.? How can I achieve this in 'matplot'?? If I can't, any good alternatives so I don't have to use 'plot' + 'lines' and loop through all the

Dear List, I am trying to plot the result of cca using matplot but failed. Pls kindly help and thanks. Elaine The error message was error in xy.coords(x, y, xlabel, ylabel, log = log) : (list) object cannot be coerced to type 'double' code rm(list=ls()) library(vegan) library(MASS) # input richness birdrich

>matplot(timestamp,xymatrix,type='l') where timestamp is a vector filled with POSIXct objects and xymatrix is a numeric 2x2 matrix plots but the horizontal axis labels are raw unformatted timestamps. I would like to format these in any of the available codes for strftime, for instance format="%H:%M". Passing a vector of formatted strings does not work. Any obvious other

Dear useRs,is there a way in R to overlap curve of each column of two matrices( 19columns and 365rows) and (17cols and 365rows) against single matrix (1 col and 365rows)?i used par(new-TRUE) and "lines" command but both are not working. thanks in advanceeliza [[alternative HTML version deleted]]

Dear useRs,How to "matplot" a column of matrix while ignoring NA values in it. More precisely, If a column has 10values in it, and row 7 and 8 are NA, instead of reading 7 and 8 as zeros, it should link 6th row with 9th.I hope my question is understandable...Thanks in advance....Elisa [[alternative HTML version deleted]]

Hi all, I've been messing with this for a while now.. myStudy is a matrix of word frequency to date of document/document. As you can see I'm trying to plot the series in the matrix. I'd like three things -- 1- In the plot that gets created the first series is a solid line, the rest are dashed... how do I make them either one or the other. 2- The legend that comes up has filled boxes

Hi, I am using color2D.matplot (...) function of "plotrix" package. I used a matrix of size around 20*20 However, apparently it failed to visualize the matrix and gave the following exception, which I don't have any idea about possible source of this error. "Error in plot.new() : figure margins too large" It would be appreciated if someone points me to the right origin