Merge pull request #50 from r-spatial/q_probs

Q probs

.Rbuildignore

@@ -4,3 +4,4 @@ README.md
 .travis.yml
 .github
 docs
+_pkgdown.yml

DESCRIPTION

@@ -1,6 +1,6 @@
 Package: classInt
-Version: 0.4-10
-Date: 2023-08-24
+Version: 0.4-11
+Date: 2024-11-26
 Title: Choose Univariate Class Intervals
 Authors@R: c(
   person("Roger", "Bivand", role=c("aut", "cre"), email="[email protected]", comment=c(ORCID="0000-0003-2392-6140")),

NEWS.md

@@ -1,3 +1,13 @@
+## Version 0.4-11
+
+- #49 permit use of `"quantile"` `style` `probs=` argument; should really use `n=`, as `probs` is set internally to `seq(0, 1, 1/n)`. For other vectors, the use of `"fixed"` `style` is preferable.
+
+## Version 0.4-10
+
+- #46 limiting use of `nsamp=`.
+
+- #44 correcting logic in `largeN=` handling.
+
 ## Version 0.4-9
 
 - #41 issues. The maximum and minimum breaks are set to \code{+Inf} and \code{-Inf} to avoid errors induced in the earlier version where breaks could cease to be strictly ascending. The \code{legacy=} argument with value \code{TRUE} may be used to revert to the previous behaviour.
@@ -18,4 +28,4 @@
 
 - Add `"headtails"` vignette (@dieghernan)
 
-- Add `"headtails"` style (@dieghernan)
+- Add `"headtails"` style (@dieghernan)

R/classInt.R

@@ -107,7 +107,11 @@ classIntervals <- function(var, n, style="quantile", rtimes=3, ..., intervalClos
   # Fix 22: Diego Hernangómez
   needn <- !(style %in% c("dpih", "headtails", "box"))
 
-  if (missing(n)) n <- nclass.Sturges(var)
+  n_missing <- FALSE
+  if (missing(n)) {
+    n <- nclass.Sturges(var)
+    n_missing <- TRUE
+  }
   if (n < 2 & needn) stop("n less than 2")
   n <- as.integer(n)
   pars <- NULL
@@ -187,7 +191,37 @@ classIntervals <- function(var, n, style="quantile", rtimes=3, ..., intervalClos
       brks <- c(pretty(x=var, n=n, ...))
     } else if (style =="quantile") {
 # stats
-      brks <- c(quantile(x=var, probs=seq(0,1,1/n), ...))
+      dots <- list(...)
+      probs <- seq(0, 1, 1/n)
+      if (!is.null(dots$probs)) {
+        if (n_missing) {
+          probs <- dots$probs
+        } else {
+          if (length(dots$probs)-1 != n) {
+            stop("both n and probs given, but length(probs)-1 != ", n)
+          } else probs <- dots$probs
+        }
+        r_probs <- range(probs)
+        if (r_probs[1] < 0 || r_probs[2] > 1)
+          stop("given probs range exceeds the unit interval: [",
+            paste(r_probs, collapse=", "), "]")
+        if (r_probs[1] != 0 || r_probs[2] != 1) {
+          warning("given probs range does not span the unit interval: [",
+            paste(r_probs, collapse=", "), "]")
+        }
+        if (length(unique(round(diff(probs), digits=14))) != 1L)
+           warning("given probs do not have equal steps")
+      }
+      na.rm <- FALSE
+      if (!is.null(dots$na.rm)) na.rm <- dots$na.rm
+      names <- FALSE
+      if (!is.null(dots$names)) names <- dots$names
+      type <- 7
+      if (!is.null(dots$type)) type <- dots$type
+      digits <- 7
+      if (!is.null(dots$digits)) digits <- dots$digits
+      brks <- c(quantile(x=var, probs=probs, na.rm=na.rm, names=names,
+        type=type, digits=digits))
       names(brks) <- NULL
     } else if (style =="kmeans") {
 # stats

_pkgdown.yml

@@ -0,0 +1,3 @@
+template:
+  bootstrap: 5
+url: https://r-spatial.github.io/classInt/