Is it possible to work with tables directly from MySQL without first reading in R?

11 December 2015 3,776 9 View

What is the data.table command similar to summarise_each in dplyr in R?

Hi everyone, I have tried to collapse multiple rows per id in terms of the maximum values. I can do it using dplyr command: data% group_by(id) %>%...

11 December 2015 9,294 4 View

Any advice for flowchart in R presentation?

Hi friends, I am working in a reproducible presentation in R where I've to show some numbers in the form of a flow chart. I tried some packages like DiagrammeR but they give error messages when I...

09 October 2015 8,167 4 View

Why am I getting different results (STATA, R)?

08 September 2015 5,992 7 View

How can I give a command to find the initial and final date for a large number of variables based on a date variables?

While working with date variables in STATA, I encountered an interesting problem. There is a date variable and there are hundreds of other common variables. I have to find out the initial and...

31 December 2014 4,553 7 View

Can someone advise me about Panel data after PSM?

Although I am not actually carrying out panel data after PSM, I'm exploring its possibility. I do have matched data after propensity score matching. But my point is: if I obtain matched data for...

11 December 2014 7,032 10 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

Analysis of CRD two factor using R studio ?

Hello everyone. I have conducted the research on post harvest longevity of tomato crop using plastic packaging and different doses of chemicals as two different factors. The design of experiment I...

28 February 2021 8,189 3 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

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

How to find out or construct(?) the right priors from data of previous experiment to use in a bayesian glm?

I have the following equation, Eating choice (Yes/No)~ Box type (A/B/C). So the question is whether a certain box type affects eating choice in groups of dogs. The eating choice of each member in...

10 February 2021 6,024 9 View