fix vectors buglet; bump pkg vers.; add ORCIDs

DESCRIPTION

@@ -2,13 +2,14 @@ Package: matlib
 Type: Package
 Title: Matrix Functions for Teaching and Learning Linear Algebra and
     Multivariate Statistics
-Version: 0.9.7
-Date: 2023-03-08
-Authors@R: c(person(given = "Michael", family = "Friendly", role=c("aut", "cre"), email="[email protected]",
-             comment=c(ORCID="0000-0002-3237-0941")),
-            person(given = "John", family = "Fox", role="aut"),
-            person(given = "Phil", family = "Chalmers", role="aut"),
-            person(given = "Georges", family = "Monette", role="ctb"),
+Version: 0.9.8
+Date: 2024-02-10
+Authors@R: c(person(given = "Michael", family = "Friendly", 
+                    role=c("aut", "cre"), email="[email protected]",
+                    comment=c(ORCID="0000-0002-3237-0941")),
+            person(given = "John", family = "Fox", role="aut", comment = c(ORCID = "0000-0002-1196-8012")),
+            person(given = "Phil", family = "Chalmers", role="aut", comment = c(ORCID="0000-0001-5332-2810")),
+            person(given = "Georges", family = "Monette", role="ctb", comment = c(ORCID = "0000-0003-0076-5532")),
             person(given = "Gaston", family = "Sanchez", role="ctb")
             )
 Maintainer: Michael Friendly <[email protected]>

NAMESPACE

@@ -72,12 +72,15 @@ import(stats)
 importFrom(MASS,fractions)
 importFrom(car,dataEllipse)
 importFrom(grDevices,adjustcolor)
+importFrom(grDevices,dev.cur)
 importFrom(grDevices,rainbow)
 importFrom(graphics,abline)
 importFrom(graphics,arrows)
 importFrom(graphics,lines)
+importFrom(graphics,par)
 importFrom(graphics,plot)
 importFrom(graphics,points)
+importFrom(graphics,polygon)
 importFrom(graphics,symbols)
 importFrom(graphics,text)
 importFrom(methods,is)

R/circle.R

@@ -4,22 +4,25 @@
 #' Draw circles on an existing plot.
 #'
 #' @details
-#' Rather than depending on the aspect ratio set in the call to \code{\link[base]{plot}},
-#' \code{circle} uses the dimensions of the plot and the \code{x} and \code{y} coordinates to draw a circle rather than an ellipse.
+#' Rather than depending on the aspect ratio \code{par("asp")} set globally or
+#' in the call to \code{\link[base]{plot}},
+#' \code{circle} uses the dimensions of the current plot and the \code{x} and \code{y} coordinates to draw a circle rather than an ellipse.
+#' Of course, if you resize the plot the aspect ratio can change.
 #'
-#' This function was copied from
+#' This function was copied from \code{\link[plotrix]{draw.circle}}
 #'
 #' @param x,y     Coordinates of the center of the circle.
 #' @param radius  Radius (or radii) of the circle(s) in user units.
 #' @param nv      Number of vertices to draw the circle.
-#' @param border  Color to use for drawing the circumference.
+#' @param border  Color to use for drawing the circumference. \code{\link[graphics]{polygon}}
 #' @param col     Color to use for filling the circle.
 #' @param lty     Line type for the circumference.
 #' @param density Density for patterned fill. See \code{\link[graphics]{polygon}}.
 #' @param angle   Angle of patterned fill. See \code{\link[graphics]{polygon}}.
 #' @param lwd     Line width for the circumference.
 #'
 #' @return Invisibly returns a list with the \code{x} and \code{y} coordinates of the points on the circumference of the last circle displayed.
+#' @importFrom graphics polygon
 #' @export
 #' @seealso \code{\link[graphics]{polygon}}
 #' @author Jim Lemon, thanks to David Winsemius for the density and angle args
@@ -31,6 +34,7 @@
 #' # draw three concentric circles
 #' circle(2, 4, c(1, 0.66, 0.33),border="purple",
 #'             col=c("#ff00ff","#ff77ff","#ffccff"),lty=1,lwd=1)
+#' # draw some others
 #' circle(2.5, 8, 0.6,border="red",lty=3,lwd=3)
 #' circle(4, 3, 0.7,border="green",col="yellow",lty=1,
 #'             density=5,angle=30,lwd=10)
@@ -74,7 +78,8 @@ circle <- function(x, y,
 #' \code{getYmult} retrieves the plot aspect ratio and the coordinate ratio for the current graphics device, calculates a
 #' multiplicative factor to equalize the X and Y dimensions of a plotted graphic object.
 #'
-#'
+#' @importFrom grDevices dev.cur
+#' @importFrom graphics par
 #' @return The correction factor for the Y dimension.
 #' @author Jim Lemon
 #' @export

R/vectors.R

@@ -51,8 +51,8 @@ vectors <- function(X, origin=c(0,0),
 
   if (is.vector(X)) X <- matrix(X, ncol=2)
   vl <- len(t(X)) < 1e-4
+  ok <- !vl
   if (any(vl)) {
-    ok <- !vl
     warning("Row(s) ", paste(which(vl), collapse=', '), " are too small to draw and have been ignored.")
   }
   .arrows(origin[1], origin[2], X[ok,1], X[ok,2], lwd=lwd, length=length, angle=angle, ...)