Flashcards in Low-level plotting commands Deck (17)

Loading flashcards...

1

## points(x, y)

### adds points (the option type= can be used)

2

## lines(x, y)

### id. but with lines

3

## text(x, y, labels, ...)

###
adds text given by labels at coordi-

nates (x,y); a typical use is: plot(x, y, type="n"); text(x, y, names)

4

## 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

5

## segments(x0, y0, x1, y1)

### draws lines from points (x0,y0) to points (x1,y1)

6

## 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

7

## abline(a,b)

### draws a line of slope b and intercept a

8

## abline(h=y)

### draws a horizontal line at ordinate y

9

## abline(v=x)

### draws a vertical line at abcissa x

10

## abline(lm.obj)

### draws the regression line given by lm.obj

11

## rect(x1, y1, x2, y2)

###
draws a rectangle which left, right, bottom, and

top limits are x1, x2, y1, and y2, respectively

12

## polygon(x, y)

###
draws a polygon linking the points with coordinates given

by x and y

13

## legend(x, y, legend)

###
adds the legend at the point (x,y) with the sym-

bols given by legend

14

## title()

### adds a title and optionally a sub-title

15

## axis(side, vect)

###
adds an axis at the bottom (side=1), on the left (2),

at the top (3), or on the right (4); vect (optional) gives the abcissa (or

ordinates) where tick-marks are drawn

16

## rug(x)

### draws the data x on the x-axis as small vertical lines

17