Modified Versions of Mann Kendall and Spearman's Rho Trend Tests.
modifiedmk
The package is useful in implementing Non-parametric Mann-Kendall trend tests and Spearman's Rank Correlation Coefficient tests.
The package contains the following varians of Trend-Tests
Mann-Kendall trend test (MK)
Mann-Kendall trend test for Pre-Whitened series (PW-MK)
Mann-Kendall trend test for Bias-Corrected Pre-Whitened series (BCPW-MK)
Mann-Kendall trend test for Trend-Free Pre-Whitened series (TFPW-MK)
Block Bootstrapping with Mann-Kendall test (BBSMK)
Modified Mann-Kendall trend using Variance Correction Approach by Hamed and Rao (1998)
Modified Mann-Kendall trend using Variance Correction Approach by Hamed and Rao (1998) considering significant lags upto lag-3
Modified Mann-Kendall trend using Variance Correction Approach suggested by Yue and Wang (2004)
Modified Mann-Kendall trend using Variance Correction Approach suggested by Yue and Wang (2004) considering only lag-1 auto correlation coefficient
Spearman's Rank Correlation test
Block Bootstrapping with Spearman's Rank Correlation test (BBSSR)
Trend magnitude is calculated by Sen's slope method.