Cluster Validity Index for Trajectory data (Large Dataset )

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Where to get free cancer patient demographic data?

Is there any freely available global repository to get cancer patients' demographic data? #cancer #cancer_research

06 December 2020 5,469 2 View

Correlation - which method to use for before after scenario?

I have three parameters, 1. Attachment level with phone (categorical data eg. Highly attached, detached, highly detached etc) 2. Hours spent using phone before covid (continuous) 3. Hours spent...

30 August 2020 7,559 3 View

Where can I get global Covid19 related data publicly available?

Where can I get global Covid19 related data publicly available for research and academic work. Specifically looking for patient data, demographics, distribution etc.

06 May 2020 4,045 2 View

I am performing PSHa analysis of a stable continent in R-Crisis. Details of modelling explained below. Why I am getting such a high value of PGA?

I am doing psha analysis of a site in Indian peninsular region using R-crisis software. I have devided the site with various seismic zones. Maximum credible earthquake is 6.8. I have calculated a...

21 February 2020 9,828 7 View

What are the disadvantages of enrichment design in a randomised control trial for a new drug ?

Enrichment design in a clinical trial to evaluate efficacy and safety of a new investigational product

16 January 2020 4,836 3 View

Is there any type citation of Ormosia fordiana Oliv.?

I am interested to know if there is any type citation of this name in Fl. Cambodge, Laos & Vietnam in vol. 23 (1987). If cited, then how it is cited?

11 January 2020 460 1 View

How can electrostatic energy becomes positve while the total energy is negative in LMOEDA?

I my study of intermolecular non-covalent complexes, I have used LMO-EDA by GAMESS codes to find the seperate contributions of energy terms. In a strange finding, I observed that although total...

23 November 2019 7,396 9 View

For addressing the present research question, using thematic analysis, must I aim for an equal sample size?

Dear fellow researchers, I am a novice when it comes to qualitative methodology. Although I have gone through the article of Braun and Clarke (2006), and referred to a number of other resources,...

09 November 2019 300 8 View

How can one explain stabilisation of a crystal structure of an alloy using crystal structure of an added element?

For example, Al with FCC structure stabilises alpha ferrite with BCC structure in steels....How to explain, atomistically?

04 March 2019 4,827 1 View

What are the methods and ways to measure environmental perception and associated human behavior?

How do we really measure environmental perception? And how do we measure relationship of environmental perception and associated behavior? What are the most prominent theories. It would be very...

28 January 2019 9,332 3 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

Can we classify HV and LV lines based on line length?

I have dataset which shows the length of power lines. I need to classify the lines based on the line length. Is there a rule to classify the High voltage (HV) and low voltage (LV) lines based on...

03 March 2021 4,116 4 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 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

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

Abhilash K Pai

NMI, Purity, Rand-index, F-measure are the important and commonly used ones (EXTERNAL MEASURES).

Davies-Bouldin Index, Silhouette Index, Dunn Index,Partition Coefficient etc. are used to internal evaluate on your data (INTERNAL MEASURES)

Bandyopadhyay Mainak

Any one having any opinion about CDbw index for density cluster validity.