Rank: 357 based on 311 downloads (last 30 days) and 14 files submitted
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Other platforms include: Objective-C, .NET, Python, SQL.


 

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Files Posted by Jeff Burkey View all
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21 Aug 2013 Mann-Kendall Tau-b with Sen's Method (enhanced) A non-parametric trend test including Sen's slope method using Mann-Kendall Tau-b technique Author: Jeff Burkey mann, kendall, mannkendall, taub, tau b, trend test 91 35
  • 4.65
4.7 | 23 ratings
18 Jun 2012 Screenshot LOWESS, Locally Weighted Scatterplot Smoothing for linear and non-linear data (enhanced) LOWESS, a robust regression like LOWESS allows detecton of a trend otherwise with too much variance Author: Jeff Burkey regression, line fit, weighted regression, robust regression, bisquare, statistics 43 8
  • 5.0
5.0 | 6 ratings
25 Apr 2012 stormevents - extract out storm events based on user supplied thresholds Using hydrograph separation techniques, storms are extracted from a time series. Author: Jeff Burkey hydrology, hydrographs, storms, storm events, hydrgraph separation 7 0
25 Apr 2012 Screenshot Hydrograph Separation using HYDSEP Separates base and storm flows using HYDSEP local minimum method. Author: Jeff Burkey hydrology, hydrograph separation, storm flows, base flows 15 0
21 Feb 2012 Seasonal Kendall Test with Slope for Serial Dependent Data Seasonal trends using tau-a,b and seasonal slope with intervals, accounts for serial dependence. Author: Jeff Burkey probability, statistics, trends, seasonal kendall test, trend test, mannkendall 31 5
  • 5.0
5.0 | 1 rating
Comments and Ratings by Jeff Burkey View all
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03 Oct 2014 Mann-Kendall Tau-b with Sen's Method (enhanced) A non-parametric trend test including Sen's slope method using Mann-Kendall Tau-b technique Author: Jeff Burkey

I'm not sure which variable you are referring to with ans = 0.03. But to get a plot, you need to include a non-zero value for the third input variable for the function. Also, the plot will only be created if the significance is below your specified threshold. I hope this helps.
- Jeff

16 Jun 2014 Mann-Kendall Tau-b with Sen's Method (enhanced) A non-parametric trend test including Sen's slope method using Mann-Kendall Tau-b technique Author: Jeff Burkey

Rodrigo, It would be possible, but I'm leaving that for someone else to do. At this time I don't have a need.

Ravi, if I'm interpreting your question correctly, your data is a single column time series of data. You need to have a time index along with the data (i.e. 2*95). And I think I've written the code to process data as 95*2, not 2*95, but I don't remember for sure.

15 Jun 2012 LOWESS, Locally Weighted Scatterplot Smoothing for linear and non-linear data (enhanced) LOWESS, a robust regression like LOWESS allows detecton of a trend otherwise with too much variance Author: Jeff Burkey

If one truly measures zero, what would be the expected response? A constant? I can see how that may pose a problem, but what is the question imposed on the data? This is a good question. I did not consider measuring zero. Give me a few days to revisit and have a response. - Jeff

13 Apr 2012 Seasonal Kendall Test with Slope for Serial Dependent Data Seasonal trends using tau-a,b and seasonal slope with intervals, accounts for serial dependence. Author: Jeff Burkey

Rita,
It certainly has potential. But whether it can or not reallyh depends on what you're trying to do. As you can imagine statistics is all about semantics. Seasonality can have different meanings. My code will perform a trend analysis on a time series. how you set up your data for seasons is dependant on what question you're trying to answer. I also wrote a Kendall seasonal program, but again you need to be very clear on what you want a season to mean. I would read the comments in the files to get a better understanding.

23 Jul 2011 Mann-Kendall Tau-b with Sen's Method (enhanced) A non-parametric trend test including Sen's slope method using Mann-Kendall Tau-b technique Author: Jeff Burkey

Arvind,
I'm guessing you're using an older version of matlab that does not accept the tilda '~'. Try replacing them with a variable.
- Jeff

Comments and Ratings on Jeff Burkey's Files View all
Updated File Comment by Comments Rating
03 Oct 2014 Mann-Kendall Tau-b with Sen's Method (enhanced) A non-parametric trend test including Sen's slope method using Mann-Kendall Tau-b technique Author: Jeff Burkey Jeff Burkey

I'm not sure which variable you are referring to with ans = 0.03. But to get a plot, you need to include a non-zero value for the third input variable for the function. Also, the plot will only be created if the significance is below your specified threshold. I hope this helps.
- Jeff

01 Oct 2014 Mann-Kendall Tau-b with Sen's Method (enhanced) A non-parametric trend test including Sen's slope method using Mann-Kendall Tau-b technique Author: Jeff Burkey jam ][pokj

after running the code I am not getting the plot ...the only thing that I am getting is the a value in the form 'ans=.03'. What I need to do to the plot

29 Sep 2014 Mann-Kendall Tau-b with Sen's Method (enhanced) A non-parametric trend test including Sen's slope method using Mann-Kendall Tau-b technique Author: Jeff Burkey jam ][pokj

bro , I am new to matlab and thus could not able to figure out how to weed out the error mentioned below
Error: File: taub.m Line: 148 Column: 1
Function definitions are not permitted in this context.
help me out

06 Aug 2014 Mann-Kendall Tau-b with Sen's Method (enhanced) A non-parametric trend test including Sen's slope method using Mann-Kendall Tau-b technique Author: Jeff Burkey Mojgan Rostaminia

This is great! Thanks.

18 Jun 2014 Mann-Kendall Tau-b with Sen's Method (enhanced) A non-parametric trend test including Sen's slope method using Mann-Kendall Tau-b technique Author: Jeff Burkey ravi

sir but i have (1*95) 95 years time series .i am asking that how will use this code in this time series.how will convert this in (2*95).i have not (2*95) time series.

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