There is some reliable proofreading online service indications for solve weak English for non-native English speakers?

There is some reliable proofreading online service indications for solve weak English for non-native English speakers?

01 February 2019 4,028 1 View

Are there any approach to classifying soils from RGB images obtained by unmanned aerial vehicle (UAV)?

Dear RG Members, Are there any approach to classifying soils from RGB images obtained by unmanned aerial vehicle (UAV)? Thanks

11 December 2018 6,601 0 View

What is the time for incorporation into leaves of calcium silicate (12% of Si) in teak tree?

Dear Members, I wiil add in the roots of two year old teak trees (~ 3 meters) different doses of Calcium Silicate (12% of Si) and would like to know how many time I wating for I collect the...

10 November 2018 1,838 0 View

Spectral reflectance estimation from RGB image of drone is possible?

Dear Members, I've like to know if spectral reflectance estimation from RGB image of drone is possible?

09 October 2018 8,663 1 View

Are there any references that relate IOT investment and agricultural profits?

Are there any references that relate IOT investment and agricultural profits?

09 October 2018 5,253 0 View

There are any list of substances that reduces hygroscopic effect in commercial medicaments?

Safety for oral consumption.

07 August 2018 8,518 1 View

Inferences about soil physical properties (water +granulometry) using RGB +NIR spectrometry is possible?

Dear RG Members, I'd to know is inferences about soil physical properties (water +granulometry) using RGB +NIR spectrometry is possible? Thanks in advanced, ASANTOS

10 November 2017 5,237 3 View

How to extract mean pixels values using circular samples in raster?

Dear RG Members, I'd like to extract mean pixels values using x,y coordinates by defining a buffer or area surrounding individual point coordinate. My circular sample represents the radius of a...

01 February 2017 9,748 0 View

Data frames in specific pairwise comparison matrices format in R, is possible?

I'd like to create a specific pairwise comparison matrices using a data frames. For this I have: Data frame with 5 products (deltametrina,fipronil,imidaclopride,sulfluramida,tiametoxam) and 2...

31 December 2016 401 0 View

Questionnaire formulation for analytic hierarchy process (AHP)

11 December 2016 7,370 9 View

Could you recommend any books about Number Theory?

Beginner level books. High level books. Analytical Number Theory. Algebraic Number Theory. Combinatorical Number Theory. Books about partitions. Books about primes.

03 March 2021 7,174 5 View

How to normalise data on OPM package from R Studio ?

Good afternoon, I recently used OmniLog from BIOLOG for my experimentations : I tested the metabolism of different strains on 2 types of plates. I have 16 strains of 3 different groups...

02 March 2021 3,584 1 View

How to plot the probability paper of Gumbel distribution using R programing?

In R-studio, there are many commands of Gumbel package. Arguments are also different. I`m asking about the alpha parameter of the Copula which must be greater than 1. If this is the one used to...

25 February 2021 5,229 3 View

Bayesian decision trees and bayesian regression trees in Python and/or R?

I am looking for implementation of bayesian decision trees and bayesian regression trees in Python and/or R.. Do you know if the existing libraries support this

23 February 2021 6,689 3 View

Are there packages (R or Python) for simple models (bucket?) to assess soil water content?

Hi everyone. I am researching droguht effects on soil water drought. I am looking for already implemented functions in R or Python to estimate soil water content from precipitation,...

21 February 2021 2,084 1 View

What cause the beating of this signal?

I am trying to simulate the impact of a sinusoidal force on a Beam, yet I registred this beating signal (Displacement by time). The freaquency of excitation was the same as the first natural...

19 February 2021 5,872 3 View

ANCOVA controlling baseline in RCT - how to perform power analysis and sample size estimation?

Hi, I have a simple question. I am hoping to perform a power analysis/sample size estimation for an RCT. We will be controlling for baseline symptoms, and using post-treatment or change scores as...

19 February 2021 2,648 23 View

MVN, how to conciliate contradictory results from Multivariate normality and Multivariate outliers test?

Dear colleagues, I'm working with Path analyses in lavaan and MVN packages. There are some results that for me are confusing and features from the MVN that I do not know how to set. My dataset is...

18 February 2021 190 3 View

Would you please recommend a function in R software that could be used with FUNGuild output to merge different rows that have similar guilds?

Dear colleagues, I have an output of FUNGuild tool (ASVs abundance in different samples and assigned to guilds) and would like to merge the ASVs that had similar ecological guilds using R...

16 February 2021 4,292 7 View

How to remove the species data from rda data frame in R (only remain the sites/samples point)?

Dear everyone, When I using the rda function in r, I met this question. As you can see in the figure, there are a lot of deep blue points which refers to the species. But I would like remain...

15 February 2021 8,982 2 View