Tsx if x is an object of class ts plot of x with

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Unformatted text preview: of x vs. the second one of y, etc. fourfoldplot(x) visualizes, with quarters of circles, the association between two dichotomous variables for different populations (x must be an array with dim=c(2, 2, k), or a matrix with dim=c(2, 2) if k = 1) assocplot(x) Cohen–Friendly graph showing the deviations from independence of rows and columns in a two dimensional contingency table mosaicplot(x) ‘mosaic’ graph of the residuals from a log-linear regression of a contingency table pairs(x) if x is a matrix or a data frame, draws all possible bivariate plots between the columns of x plot.ts(x) if x is an object of class "ts", plot of x with respect to time, x may be multivariate but the series must have the same frequency and dates ts.plot(x) id. but if x is multivariate the series may have different dates and must have the same frequency qqnorm(x) quantiles of x with respect to the values expected under a normal law qqplot(x, y) quantiles of y with respect to the quantiles of x contour(x, y, z) contour plot (data are interpolated to draw the curves), x and y must be vectors and z must be a matrix so that dim(z)=c(length(x), length(y)) (x and y may be omitted) filled.contour(x, y, z) id. but the areas between the contours are coloured, and a legend of the colours is drawn as well image(x, y, z) id. but with colours (actual data are plotted) persp(x, y, z) id. but in perspective (actual data are plotted) stars(x) if x is a matrix or a data frame, draws a graph with segments or a star where each row of x is represented by a star and the columns are the lengths of the segments symbols(x, y, ...) draws, at the coordinates given by x and y, symbols (circles, squares, rectangles, stars, thermometres or “boxplots”) which sizes, colours . . . are specified by supplementary arguments termplot(mod.obj) plot of the (partial) effects of a regression model (mod.obj) The following parameters are common to many plotting functions: add=FALSE if TRUE superposes the plot on the previous one (if it exists) axes=TRUE if FALSE does not draw the axes and the box type="p" specifies the type of plot, "p": points, "l": lines, "b": points connected by lines, "o": id. but the lines are over the points, "h": vertical lines, "s": steps, the data are represented by the top of the vertical lines, "S": id. but the data are represented by the bottom of the vertical lines xlim=, ylim= specifies the lower and upper limits of the axes, for example with xlim=c(1, 10) or xlim=range(x) xlab=, ylab= annotates the axes, must be variables of mode character main= main title, must be a variable of mode character sub= sub-title (written in a smaller font) Low-level plotting commands points(x, y) adds points (the option type= can be used) lines(x, y) id. but with lines text(x, y, labels, ...) adds text given by labels at coordinates (x,y); a typical use is: plot(x, y, type="n"); text(x, y, names) mtext(text, side=3, line=0, ...) adds text given by text in the margin specified by side (see axis() below); line specifies the line from the plotting area segments(x0, y0, x1, y1) draws lines from points (x0,y0) to points (x1,y1) arrows(x0, y0, x1, y1, angle= 30, code=2) id. with arrows at points (x0,y0) if code=2, at points (x1,y1) if code=1, or both if code=3; angle controls the angle from the shaft of the arrow to the edge of the arrow head abline(a,b) draws a line of slope b and...
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This document was uploaded on 04/10/2014.

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