Satisfy R CMD check

- Depend on R >= 3.5.0, because the format used for the data is not
  known to earlier R versions
- Rename the datasets from `test` to their proper name

18 files changed, 63 insertions, 29 deletions

diff --git a/DESCRIPTION b/DESCRIPTION
index 2b680b9..de910c5 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -1,10 +1,11 @@
 Package: chemCal
 Version: 0.2.3.9000
-Date: 2024-11-17
+Date: 2025-01-25
 Title: Calibration Functions for Analytical Chemistry
 Authors@R: c(person("Johannes", "Ranke", role = c("aut", "cre", "cph"), 
                     email = "johannes.ranke@jrwb.de",
                     comment = c(ORCID = "0000-0003-4371-6538")))
+Depends: R (>= 3.5.0)
 Suggests: MASS, knitr, testthat, investr, covr, rmarkdown
 Description: Simple functions for plotting linear
 	calibration functions and estimating standard errors for measurements
diff --git a/R/chemCal-package.R b/R/chemCal-package.R
index 08c2ebc..54ab190 100644
--- a/R/chemCal-package.R
+++ b/R/chemCal-package.R
@@ -54,7 +54,7 @@
 #' # LQ = 3.04 * LC (Currie 1999, p. 120)
 #' 3.04 * lod(m, alpha = 0.01, beta = 0.5)$x
 #' 
-NULL
+"din32645"
 
 
 
@@ -72,7 +72,7 @@ NULL
 #' Lewi, P.J., Smeyers-Verbeke, J. (1997) Handbook of Chemometrics and
 #' Qualimetrics: Part A, Chapter 8.
 #' @keywords datasets
-NULL
+"massart97ex1"
 
 
 
@@ -128,7 +128,7 @@ NULL
 #' # of 15, but the graphical procedure of Massart (p. 201) to derive the 
 #' # variances on which the weights are based is quite inaccurate anyway. 
 #' 
-NULL
+"massart97ex3"
 
 
 
@@ -147,7 +147,7 @@ NULL
 #' @source Rocke, David M. und Lorenzato, Stefan (1995) A two-component model
 #' for measurement error in analytical chemistry. Technometrics 37(2), 176-184.
 #' @keywords datasets
-NULL
+"rl95_cadmium"
 
 
 
@@ -167,7 +167,7 @@ NULL
 #' @source Rocke, David M. und Lorenzato, Stefan (1995) A two-component model
 #' for measurement error in analytical chemistry. Technometrics 37(2), 176-184.
 #' @keywords datasets
-NULL
+"rl95_toluene"
 
 
 
@@ -188,7 +188,7 @@ NULL
 #' Toronto.
 #' \url{https://sites.chem.utoronto.ca/chemistry/coursenotes/analsci/stats/index.html}
 #' @keywords datasets
-NULL
+"utstats14"
 
 
 
@@ -207,7 +207,7 @@ NULL
 #' @references DIN 38402-51:2017-05, Beuth Verlag, Berlin. 
 #' https://dx.doi.org/10.31030/2657448
 #' @keywords datasets
-NULL
+"din38402b1"
 
 
 
@@ -227,7 +227,7 @@ NULL
 #' @references DIN 38402-51:2017-05, Beuth Verlag, Berlin. 
 #' https://dx.doi.org/10.31030/2657448
 #' @keywords datasets
-NULL
+"din38402b3"
 
 
 
@@ -246,7 +246,7 @@ NULL
 #' @references DIN 38402-51:2017-05, Beuth Verlag, Berlin. 
 #' https://dx.doi.org/10.31030/2657448
 #' @keywords datasets
-NULL
+"din38402b6"
 
 
 
@@ -264,5 +264,5 @@ NULL
 #' @references DIN 38402-51:2017-05, Beuth Verlag, Berlin. 
 #' https://dx.doi.org/10.31030/2657448
 #' @keywords datasets
-NULL
+"din38402c3"
 
diff --git a/check.log b/check.log
index 60e9e39..fdc71ef 100644
--- a/check.log
+++ b/check.log
@@ -1,18 +1,19 @@
 * using log directory ‘/home/jranke/git/chemCal/chemCal.Rcheck’
-* using R version 4.1.3 (2022-03-10)
-* using platform: x86_64-pc-linux-gnu (64-bit)
+* using R version 4.4.2 (2024-10-31)
+* using platform: x86_64-pc-linux-gnu
+* R was compiled by
+    gcc (Debian 12.2.0-14) 12.2.0
+    GNU Fortran (Debian 12.2.0-14) 12.2.0
+* running under: Debian GNU/Linux 12 (bookworm)
 * using session charset: UTF-8
 * using option ‘--as-cran’
 * checking for file ‘chemCal/DESCRIPTION’ ... OK
-* this is package ‘chemCal’ version ‘0.2.3’
+* this is package ‘chemCal’ version ‘0.2.3.9000’
 * package encoding: UTF-8
-* checking CRAN incoming feasibility ... NOTE
+* checking CRAN incoming feasibility ... [3s/15s] NOTE
 Maintainer: ‘Johannes Ranke <johannes.ranke@jrwb.de>’
 
-New maintainer:
-  Johannes Ranke <johannes.ranke@jrwb.de>
-Old maintainer(s):
-  Johannes Ranke <jranke@uni-bremen.de>
+Version contains large components (0.2.3.9000)
 * checking package namespace information ... OK
 * checking package dependencies ... OK
 * checking if this is a source package ... OK
@@ -21,18 +22,18 @@ Old maintainer(s):
 * checking for hidden files and directories ... OK
 * checking for portable file names ... OK
 * checking for sufficient/correct file permissions ... OK
-* checking serialization versions ... OK
 * checking whether package ‘chemCal’ can be installed ... OK
 * checking installed package size ... OK
 * checking package directory ... OK
-* checking for future file timestamps ... OK
+* checking for future file timestamps ... NOTE
+unable to verify current time
 * checking ‘build’ directory ... OK
 * checking DESCRIPTION meta-information ... OK
 * checking top-level files ... OK
 * checking for left-over files ... OK
 * checking index information ... OK
 * checking package subdirectories ... OK
-* checking R files for non-ASCII characters ... OK
+* checking code files for non-ASCII characters ... OK
 * checking R files for syntax errors ... OK
 * checking whether the package can be loaded ... OK
 * checking whether the package can be loaded with stated dependencies ... OK
@@ -67,16 +68,16 @@ Old maintainer(s):
   Running ‘testthat.R’
  OK
 * checking for unstated dependencies in vignettes ... OK
-* checking package vignettes in ‘inst/doc’ ... OK
+* checking package vignettes ... OK
 * checking re-building of vignette outputs ... OK
 * checking PDF version of manual ... OK
+* checking HTML version of manual ... OK
 * checking for non-standard things in the check directory ... OK
 * checking for detritus in the temp directory ... OK
 * DONE
 
-Status: 1 NOTE
+Status: 2 NOTEs
 See
   ‘/home/jranke/git/chemCal/chemCal.Rcheck/00check.log’
 for details.
 
-
diff --git a/data/din38402b1.rda b/data/din38402b1.rda
index 9436f8a..ccaf554 100644
--- a/data/din38402b1.rda
+++ b/data/din38402b1.rda
diff --git a/data/din38402b3.rda b/data/din38402b3.rda
index 699c76b..80e80e3 100644
--- a/data/din38402b3.rda
+++ b/data/din38402b3.rda
diff --git a/data/din38402b6.rda b/data/din38402b6.rda
index 3b81120..def8f0e 100644
--- a/data/din38402b6.rda
+++ b/data/din38402b6.rda
diff --git a/data/din38402c3.rda b/data/din38402c3.rda
index 7e83cf6..c4688ef 100644
--- a/data/din38402c3.rda
+++ b/data/din38402c3.rda
diff --git a/man/din32645.Rd b/man/din32645.Rd
index a8e6a31..5b9603f 100644
--- a/man/din32645.Rd
+++ b/man/din32645.Rd
@@ -7,6 +7,9 @@
 \format{
 A dataframe containing 10 rows of x and y values.
 }
+\usage{
+din32645
+}
 \description{
 Sample dataset to test the package.
 }
diff --git a/man/din38402b1.Rd b/man/din38402b1.Rd
index 10ccddc..2c538b8 100644
--- a/man/din38402b1.Rd
+++ b/man/din38402b1.Rd
@@ -8,6 +8,9 @@
 A tibble containing 12 concentration levels with the respective
 instrument response values.
 }
+\usage{
+din38402b1
+}
 \description{
 Example dataset B.1 from DIN 38402 with concentrations in µg/L and the extinction
 as response measured using continuous flow analysis (CFA) according to
diff --git a/man/din38402b3.Rd b/man/din38402b3.Rd
index b4b5504..83abd0f 100644
--- a/man/din38402b3.Rd
+++ b/man/din38402b3.Rd
@@ -8,6 +8,9 @@
 A tibble containing 13 concentration levels and the respective
 instrument response values.
 }
+\usage{
+din38402b3
+}
 \description{
 Example dataset B.3 from DIN 38402. Cu was measured according to ISO 11885,
 using ICP-OES. The concentration are reported in mg/L and the response as
diff --git a/man/din38402b6.Rd b/man/din38402b6.Rd
index feb3577..289ee41 100644
--- a/man/din38402b6.Rd
+++ b/man/din38402b6.Rd
@@ -8,6 +8,9 @@
 A tibble containing 12 concentration levels and the respective
 instrument response values.
 }
+\usage{
+din38402b6
+}
 \description{
 Example dataset B.6 from DIN 38402 measured using LC-MS/MS. The
 concentrations are reported in in µg/L and the response in arbitrary
diff --git a/man/din38402c3.Rd b/man/din38402c3.Rd
index 7c00999..e9ac83e 100644
--- a/man/din38402c3.Rd
+++ b/man/din38402c3.Rd
@@ -8,6 +8,9 @@
 A tibble containing 10 concentration levels and the respective
 response values.
 }
+\usage{
+din38402c3
+}
 \description{
 Example dataset C.3 from DIN 38402 determined by ion chromatography.
 Concentrations are reported in mg/L and the extinction as response.
diff --git a/man/linearity.Rd b/man/linearity.Rd
index aa3d857..52c2423 100644
--- a/man/linearity.Rd
+++ b/man/linearity.Rd
@@ -41,12 +41,14 @@ identification of non-linear behaviour of calibration curves (Andrade and
 Gomes-Carracedo, 2013).
 }
 \examples{
-data(din32645)
+# Continuous Flow Analysis (CFA) data
+data(din38402b1)
+
 # Point-to-point slope plot
-linearity(din32645$x, din32645$y, method = "slope")
+linearity(din38402b1$conc, din38402b1$ext, method = "slope")
 
 # Curvature plot
-linearity(din32645$x, din32645$y, method = "curvature", tolerance = 0.2)
+linearity(din38402b1$conc, din38402b1$ext, method = "curvature")
 
 }
 \references{
@@ -58,5 +60,5 @@ Mandel's test to check for nonlinearity in laboratory calibrations.
 Analytical Methods 5(5), 1145 - 1149.
 }
 \author{
-Anil Axel Tellbüscher
+Anıl Axel Tellbüscher
 }
diff --git a/man/massart97ex1.Rd b/man/massart97ex1.Rd
index d154a9c..c49f416 100644
--- a/man/massart97ex1.Rd
+++ b/man/massart97ex1.Rd
@@ -12,6 +12,9 @@ Massart, L.M, Vandenginste, B.G.M., Buydens, L.M.C., De Jong, S.,
 Lewi, P.J., Smeyers-Verbeke, J. (1997) Handbook of Chemometrics and
 Qualimetrics: Part A, Chapter 8.
 }
+\usage{
+massart97ex1
+}
 \description{
 Sample dataset from p. 175 to test the package.
 }
diff --git a/man/massart97ex3.Rd b/man/massart97ex3.Rd
index 284a435..82d3191 100644
--- a/man/massart97ex3.Rd
+++ b/man/massart97ex3.Rd
@@ -13,6 +13,9 @@ Massart, L.M, Vandenginste, B.G.M., Buydens, L.M.C., De Jong, S.,
 Lewi, P.J., Smeyers-Verbeke, J. (1997) Handbook of Chemometrics and
 Qualimetrics: Part A, Chapter 8.
 }
+\usage{
+massart97ex3
+}
 \description{
 Sample dataset from p. 188 to test the package.
 }
diff --git a/man/rl95_cadmium.Rd b/man/rl95_cadmium.Rd
index 8e0b02c..db6a841 100644
--- a/man/rl95_cadmium.Rd
+++ b/man/rl95_cadmium.Rd
@@ -13,6 +13,9 @@ six calibration standards.
 Rocke, David M. und Lorenzato, Stefan (1995) A two-component model
 for measurement error in analytical chemistry. Technometrics 37(2), 176-184.
 }
+\usage{
+rl95_cadmium
+}
 \description{
 Dataset reproduced from Table 1 in Rocke and Lorenzato (1995).
 }
diff --git a/man/rl95_toluene.Rd b/man/rl95_toluene.Rd
index 1f8836a..2e0f3a5 100644
--- a/man/rl95_toluene.Rd
+++ b/man/rl95_toluene.Rd
@@ -12,6 +12,9 @@ six calibration standards.
 Rocke, David M. und Lorenzato, Stefan (1995) A two-component model
 for measurement error in analytical chemistry. Technometrics 37(2), 176-184.
 }
+\usage{
+rl95_toluene
+}
 \description{
 Dataset reproduced from Table 4 in Rocke and Lorenzato (1995). The toluene
 amount in the calibration samples is given in picograms per 100 µL.
diff --git a/man/utstats14.Rd b/man/utstats14.Rd
index 1b739d4..bb952ff 100644
--- a/man/utstats14.Rd
+++ b/man/utstats14.Rd
@@ -14,6 +14,9 @@ Tutorial website maintained by the Departments of Chemistry, University of
 Toronto.
 \url{https://sites.chem.utoronto.ca/chemistry/coursenotes/analsci/stats/index.html}
 }
+\usage{
+utstats14
+}
 \description{
 Dataset read into R from
 \url{https://sites.chem.utoronto.ca/chemistry/coursenotes/analsci/stats/files/example14.xls}.