na-omit for qq in descriptives (#477)

* na-omit

* add rds fallback, update test plots and renvlock

* update vctrs

* bump lazyeval

* more strict na check qqplot

Author: JohnnyDoorn

DESCRIPTION

@@ -1,8 +1,8 @@
 Package: jaspDescriptives
 Type: Package
 Title: Descriptives Module for JASP
-Version: 0.96.0
-Date: 2022-09-12
+Version: 0.96.1
+Date: 2026-04-07
 Author: JASP Team
 Website: jasp-stats.org
 Maintainer: JASP Team <[email protected]>

R/descriptives.R

@@ -1846,11 +1846,13 @@ DescriptivesInternal <- function(jaspResults, dataset, options) {
     errorMessage <- .descriptivesCheckPlotErrors(dataset, qqvar, obsAmount = "< 1")
     if (!is.null(errorMessage)) {
       descriptivesQQPlot$setError(gettextf("Plotting not possible: %s", errorMessage))
+    } else if (sum(!is.na(dataset[[qqvar]])) < 2) {
+      descriptivesQQPlot$setError(gettextf("Plotting not possible: Variable '%s' has fewer than 2 valid (non-missing) observations.", qqvar))
     } else {
 
       ciLevel <- if (options[["qqPlotCi"]])  options[["qqPlotCiLevel"]] else NULL
 
-      descriptivesQQPlot$plotObject <- jaspGraphs::plotQQnorm(scale(dataset[[qqvar]]),
+      descriptivesQQPlot$plotObject <- jaspGraphs::plotQQnorm(scale(na.omit(dataset[[qqvar]])),
                                                              yName = "Standardized sample quantiles",
                                                              ablineColor = "darkred",
                                                              ablineOrigin = TRUE,