Looking for interactive online resources for learning R (preferably related within environmental science)

More Ellen R McGrory's questions See All

What is the best ratio for practical skills and theory for full time students?

When teaching vocational subjects we have to balance between theory and practical skills for students to progress to next level.

19 May 2020 4,367 3 View

Minimum levels of COVID detection?

Hello good people, This is not a normal question for me, but a friend in Public Health wanted to know, so I thought I would ask. The test for COVID is a PCR, if I am not mistaken. The question...

16 March 2020 3,322 2 View

How to Find Demographic Data on Social Media?

I'm a research assistant on a project tracking teen social media usage. We need to find statistics on age demographics for various social media platforms (Twitter, Tik Tok, etc.), but so far,...

15 September 2019 5,881 2 View

How to clone a gene with long sequence?

Dear All, I'm now trying to amplify a gene with 3690bp from the genomic DNA. I've design 3 sets of primers. First set is flanking the whole gene. Second set is flanking from 1 to 2613bp. Final...

07 February 2019 1,167 1 View

How do I remove something that publisher complained about?

I cannot share copyright book. Mary Ellen Gioldberg

19 January 2019 7,782 3 View

Has anyone examined the ferret pup retinal vasculature?

I cannot find any literature. Is it similar to the mouse? Rat? Human? Has anyone tried it as a model of retinopathy?

14 January 2019 1,457 2 View

Looking for ways to include water quality microbiological parameters into a statistical analysis using censored data analysis methods?

Interested in finding out other peoples experiences in dealing with microbiological parameters (such as Faecal coliforms, total coliforms, etc) are are below the method detection limit of the...

12 January 2018 7,546 2 View

Anybody have resources (article) for predicting via logistic regression modelling for an environmental contaminant above a threshold concentration?

Environmental Logistic regression modelling Contaminant Machine learning

29 December 2017 1,741 4 View

Good protocol for DNA/RNA Immunoprecipitation (DRIP) detecting R-loops?

I'm trying to do a DNA/RNA immunoprecipitation (DRIP) using the S9.6 antibody and am getting no DNA pull down. I isolate DNA from cultured cells using the Qiagen DNeasy Blood & Tissue Kit and...

07 September 2017 148 3 View

What do you think of rapid curriculum change?

In the philippines, the 10-year basic education has changed to Kto12 curriculum. i need to know the issues behind rapid curriculum change and the things needed to prepare for such change.

16 February 2017 9,169 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 is your perception on using visual analysis or quantitative approaches to evaluate data from single-case research designs (n of 1 trials)?

Results of single-case research designs (i.e., n-of-1 trials) are often evaluated by visually inspecting the time-series graph and computing quantitative indices. A question our research team is...

03 March 2021 687 1 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 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

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View

How to quantitative analize the data of TNBS assay for gelatin?

Estemeed colleagues, I found some issues regarding the quantification of the data for TNBS assay. There are different protocols on how to perform that but it is clear to me the "fil rouge" that...

02 March 2021 2,616 1 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

Research on Supply Chain Management in Indian context?

Hi, I am planning to apply for the PhD degree in the Supply Chain Mgt. with specific area of "Cold Storage warehouses" during Pandemics and wars. Where lock downs and shut downs are frequent....

02 March 2021 285 2 View

Can you share me how teacher education is managed in your respective national educational system?

I feel that the practice in teacher education in my country is below the expected performance level due to very poor management system. Hope I will learn something from your experiences.

02 March 2021 1,516 4 View

Manjula Premaratne

Online learning resource " Coursera" has many. Good luck!

Ellen R McGrory

Thanks now, will check that out

Paul Milham

One of the British universities has good materials but this is not my field so you need to search

Oh cool, I'll try searching for the Uni so

Muhammad Ahmed Waqas

Course : Statistics and R

institution: Harvard

Price: Free

Link: https://www.edx.org/course/statistics-r-harvardx-ph525-1x-0

Thanks now, that looks great