How can I calculate sen's slope estimator in R and how can I write the code?

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Dor Fridman

Here is a simple R code, based on the ZYP package, and the zyp.sen() fucntion.

Virasith Phomsouvanh

Dor Fridman,

Could you please help me to show how to calculate the value step by step in Mann-Kendall test and Sen‘ s slope estimator in excel file MAKESEMS.

Please show each formula in excel file.

Best,

sith

Dear Virasith,

I am not able to show the formula for Mann-Kendall or for the Sen's slope estimator. I have used a R-package names zyp (see documentation) for the Sen slope estimator. You can review this thread about using R for how to use Mann-Kendal test in R.

I actually stop using MS Excel almost completely, for it has zero statistical capabilities, in a sense that in order to perform a shapiro-wilk's test one should download an add-on that costs apporx~ 200 US $. I recommend to use R, an open-source, free, easy-to-use, and diverse software. Additionally, it has a growing user community, who support and help other users. USE R!

https://www.google.co.il/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwjegp-Uvt_OAhWBXRoKHYBaDEAQFggcMAA&url=https%3A%2F%2Fcran.r-project.org%2Fweb%2Fpackages%2Fzyp%2Fzyp.pdf&usg=AFQjCNGLj26zVhQkYep6lFOosGB79STYug&sig2=IRvL0740_riQ_uDPehBsgg

https://www.researchgate.net/post/How_can_I_use_R_software_to_perform_the_Mann-Kendall_Test_for_trend_analysis_and_abrupt_change