fix warning in mipLineHistorical thrown due to new ggplot version

.buildlibrary

@@ -1,4 +1,4 @@
-ValidationKey: '29374785'
+ValidationKey: '29394566'
 AcceptedWarnings:
 - 'Warning: package ''.*'' was built under R version'
 - 'Warning: namespace ''.*'' is not available and has been replaced'

CITATION.cff

@@ -2,7 +2,7 @@ cff-version: 1.2.0
 message: If you use this software, please cite it using the metadata from this file.
 type: software
 title: 'mip: Comparison of multi-model runs'
-version: 0.148.5
+version: 0.148.6
 date-released: '2024-02-28'
 abstract: Package contains generic functions to produce comparison plots of multi-model
   runs.

DESCRIPTION

@@ -1,7 +1,7 @@
 Type: Package
 Package: mip
 Title: Comparison of multi-model runs
-Version: 0.148.5
+Version: 0.148.6
 Date: 2024-02-28
 Authors@R: c(
     person("David", "Klein", , "[email protected]", role = c("aut", "cre")),

R/mipLineHistorical.R

@@ -255,8 +255,17 @@ mipLineHistorical <- function(x,x_hist=NULL,color.dim="identifier",linetype.dim=
     #fill: add colors for historical and keep shape symbol
     #alpha: add colors for projection depending on leg.proj
     p <- p + scale_color_manual(color.dim.name,values = color_set, breaks=model_output,labels=model_output,guide=guide_legend(order=1,title.position = "top", ncol=legend.ncol))
-    p <- p + scale_fill_manual("Historical data",values = color_set[historical],breaks=historical,
-                               guide=guide_legend(override.aes = list(colour=color_set[historical],shape="+",linetype=0,size=5),order=2,title.position = "top", ncol=legend.ncol))
+
+    if (!is.null(x_hist)) {
+      p <- p + scale_fill_manual("Historical data",
+        values = color_set[historical], breaks = historical,
+        guide = guide_legend(override.aes = list(
+          colour = color_set[historical],
+          shape = "+", linetype = 0, size = 5
+        ), order = 2, title.position = "top", ncol = legend.ncol)
+      )
+    }
+
     if(leg.proj) p <- p + scale_alpha_manual("Other projections",values = seq(0.1,1,length.out = length(projection)),breaks=projection,labels=projection,guide=guide_legend(override.aes = list(colour=color_set[projection],shape=NULL,linetype=1,linewidth=1,alpha=0.5),order=3,title.position = "top", ncol=legend.ncol))
     else p <- p + scale_alpha_manual("Other projections",values = seq(0.1,1,length.out = length(projection)),breaks=projection,labels=projection,guide=guide_legend(override.aes = list(colour="#A1A194",shape=NULL,linetype=1,linewidth=1,alpha=0.5),order=3,title.position = "top", ncol=legend.ncol))
     p <- p + guides(linetype=guide_legend(order=4,title.position="top",ncol=legend.ncol))

README.md

@@ -1,6 +1,6 @@
 # Comparison of multi-model runs
 
-R package **mip**, version **0.148.5**
+R package **mip**, version **0.148.6**
 
 [![CRAN status](https://www.r-pkg.org/badges/version/mip)](https://cran.r-project.org/package=mip) [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.1158586.svg)](https://doi.org/10.5281/zenodo.1158586) [![R build status](https://github.com/pik-piam/mip/workflows/check/badge.svg)](https://github.com/pik-piam/mip/actions) [![codecov](https://codecov.io/gh/pik-piam/mip/branch/master/graph/badge.svg)](https://app.codecov.io/gh/pik-piam/mip) [![r-universe](https://pik-piam.r-universe.dev/badges/mip)](https://pik-piam.r-universe.dev/builds)
 
@@ -47,7 +47,7 @@ In case of questions / problems please contact David Klein <[email protected]
 
 To cite package **mip** in publications use:
 
-Klein D, Dietrich J, Baumstark L, Humpenoeder F, Stevanovic M, Wirth S, Führlich P, Richters O, Rüter T (2024). _mip: Comparison of multi-model runs_. doi:10.5281/zenodo.1158586 <https://doi.org/10.5281/zenodo.1158586>, R package version 0.148.5, <https://github.com/pik-piam/mip>.
+Klein D, Dietrich J, Baumstark L, Humpenoeder F, Stevanovic M, Wirth S, Führlich P, Richters O, Rüter T (2024). _mip: Comparison of multi-model runs_. doi:10.5281/zenodo.1158586 <https://doi.org/10.5281/zenodo.1158586>, R package version 0.148.6, <https://github.com/pik-piam/mip>.
 
 A BibTeX entry for LaTeX users is
 
@@ -56,7 +56,7 @@ A BibTeX entry for LaTeX users is
   title = {mip: Comparison of multi-model runs},
   author = {David Klein and Jan Philipp Dietrich and Lavinia Baumstark and Florian Humpenoeder and Miodrag Stevanovic and Stephen Wirth and Pascal Führlich and Oliver Richters and Tonn Rüter},
   year = {2024},
-  note = {R package version 0.148.5},
+  note = {R package version 0.148.6},
   doi = {10.5281/zenodo.1158586},
   url = {https://github.com/pik-piam/mip},
 }