What are the general explanations of change from bimodal to unimodal distribution of a variable in complex adaptive system ?

Let us suppose, we have a time series data of a variable and I am interested in change in the distribution of that variable over two time frames of equal size (long enough to discard pathologies...

04 May 2018 2,344 2 View

What is the effective change point detection technique for identifying the changepoints in a higly skewed data series?

Suppose I want to analyse 100 year of monthly mean flow data of a particular month.

01 February 2016 5,652 2 View

How does the assumption of independent and identically distribution plays a role in obtaining an unbiased estimator?

Suppose I chose samples from a population where the sample are not in the framework of iid ness, does it mean that the sample estimate of the mean will be biased? Here we are thinking of a highly...

01 February 2016 5,222 5 View

Is there any good book or study materials on Applications of Pattern Recognition and Machine Learning in Hydrology and Water Resources Systems?

10 November 2015 2,943 3 View

What are the conditions of using simple water balance equation?

Simple water balance equation, P = E + Q, where change in storage can be considered negligible. Apart from having sufficiently long time series of observation of hydrologic variables like...

11 December 2014 6,894 15 View

How to calculate the retrograde series in the sequential Mann Kendall rank test?

It is needed to determine the change point of trend in the streamflow series.

08 September 2014 6,635 1 View

Why water moves in counter clockwise direction vertically through any conduit in Northern Hemisphere, but reverse in Southern Hemisphere?

Actually, I have heard this fact from my friend.

07 August 2014 4,625 2 View

How pattern recognition techniques can be beneficial in identifying the most serious hydrological shifts or phenomena in long term streamflow?

07 August 2014 1,020 4 View

What is the best method for detection of change point in streamflow time series?

Petit test, Double mass curve technique, Mann Kendal Rank Test etc...which is more hydrologically significant technique for change point detection. Please help me.

07 August 2014 6,120 12 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

How to calculate average trend in maximum annual NDVI from MODIS?

I am wanting to calculate the average trend in maximum annual NDVI in Iceland from 2010-2020 using MODIS MYD13Q1 V6. How would I do this? I have currently inserted the NDVI bands from the MODIS...

02 March 2021 752 2 View

Please suggest a good text book for "Research Methodology in Life Sciences". Which book would be good for PhD Scholars?

Please provide Book Title and author name

02 March 2021 9,059 3 View

No title

01 March 2021 3,905 5 View

Precipitate after adding laemmli buffer to protein solution containing Potassium Acetate?

Hi, I am running a size exclusion chromatography experiment with a buffer containing Potassium Acetate as a salt. I analyse these fractions through SDS-PAGE. After boiling my SEC fractions in...

01 March 2021 2,622 3 View

How can I make stacked bar graph with scatter plot?

I want to make a stacked bar graph with showing each data value as dots. I tried with graph pad prism, version 6, but could not succeed. Does anyone have tried before making such graphs?

01 March 2021 9,383 1 View

How to perform statistical analysis of coefficients extracted from transform techniques?

I am studying the potential of DCT and FFT coefficients extracted from a signal to classify the different objects that emit the signal. I applied the Shapiro-Wilk to confirm that data was not...

01 March 2021 8,079 2 View

The Shannon's index is inversely proportional to Simpson's index (1-D)?

I'm having a problem with my bloxplot with Shannon's and Simpson's indexs. The value of Shannon for my Community 1 indicating higher diversity (in relation of the Community 2), but have lower...

26 February 2021 3,033 9 View

Can random sampling have inclusion criteria?

As random sampling means that everyone in the population have an equal chance to be chosen, can it have inclusion criteria? My research participants have been chosen based on the inclusion...

26 February 2021 6,905 10 View