Computer code and datasets for reproducing the figures about the effect of sample size of leaf osmotic potential on its association with cotton yield

Computer code and data files for reproducing the figures of the manuscript entitled "Does sample size of leaf osmotic potential significantly affect the evidence of its association with cotton yield?" by X. Dong, D. A. Mott, Q. Zhou, and B. M. McKnight. Journal of Arid Emnvironments, 229 (2025) 105387. https://doi.org/10.1016/j.jaridenv.2025.105387 Figure 1 can be reproduced using gnuplot code "ssize_1.txt" and dataset "ssize_1.csv". Figures 2-3 can be reproduced using Minitab macro "ctleaf_1.mac" and data file "Sample_size_OP.csv". To run the macro, the contents of the data file "Sample_size_OP.csv" must first be copied into the current Minitab Worksheet.本数据集包含复现X. Dong、D. A. Mott、Q. Zhou与B. M. McKnight所著手稿插图所需的计算机代码与数据文件。该手稿题为《叶片渗透势的样本量是否显著影响其与棉花产量关联的证据？》，发表于《干旱环境杂志（Journal of Arid Environments）》2025年第229卷，文章编号为105387，DOI链接为https://doi.org/10.1016/j.jaridenv.2025.105387。可通过gnuplot代码"ssize_1.txt"与数据集"ssize_1.csv"复现图1。图2至图3可通过Minitab宏程序"ctleaf_1.mac"与数据文件"Sample_size_OP.csv"复现。运行该宏程序前，需先将数据文件"Sample_size_OP.csv"的内容复制至当前Minitab工作表中。