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Comparing an ecological subsample to population
http://www.talkstats.com/showthread.php/69759-Comparing-an-ecological-subsample-to-population?goto=newpost
Fri, 23 Jun 2017 13:22:40 GMTI have 2 batches of tree species and abundance data collected for a city. The difference between them is the sampling strategy - one was random...I have 2 batches of tree species and abundance data collected for a city. The difference between them is the sampling strategy - one was random unstratified, and the other was stratified and clustered. At a glance the species mixes and relative abundances are fairly similar but i want to test this statistically. I have considered Bray curtis but this test has the assumption that the samples are identical in area, which these arent - the random sample covers a much smaller area of the city.

How can i compare these populations?

thanks
]]>Statistical Researchandyspeakhttp://www.talkstats.com/showthread.php/69759-Comparing-an-ecological-subsample-to-populationBest tool to analyse data
http://www.talkstats.com/showthread.php/69746-Best-tool-to-analyse-data?goto=newpost
Wed, 21 Jun 2017 10:16:13 GMTHi,
I have 20 years of data about calibration reports of various clients which primarily shows three-variables.
COMPANY A
YEAR 2001
1.)...Hi,

I have 20 years of data about calibration reports of various clients which primarily shows three-variables.

COMPANY A

YEAR 2001
1.) Variable a, Variable b, Variable c
2.) Variable a, Variable b, Variable c
.......(10 readings)

YEAR 2002
Variable a, Variable b, Variable c
Variable a, Variable b, Variable c
.......(10 readings)

... upto Year 2016

For my research assignment, i am supposed to form a trendline and equation which can summarize the underlying connection among the yearly results for a particular company and, perhaps, help in prediction.?

I hope you understand what i mean.
]]>Statistical Researchfahmhttp://www.talkstats.com/showthread.php/69746-Best-tool-to-analyse-data