Having trouble with installing R "devtools"?

I run: install.packages("devtools") in my terminal & get the error message: bash: syntax error near unexpected token `"devtools"'. Any ideas of how I can successfully install this R package...

10 November 2016 4,291 0 View

Problem with "community.to.membership" in R?

I'm analyzing some graphs in R, and have an error with "community.to.membership". I get error message "Error: could not find function "community.to.membership", anyone seen it before? When I type...

09 October 2015 6,182 2 View

What is the best approach to model Multivariate Non-Gaussian data with multiple covariates?

11 December 2014 265 4 View

How can I find unique entries in Table, in "R"?

Suppose I have a table, T3. I would like to find unique values by removing repeated rows (with reversed entries, e.g. row 1 and 4). The final table I need should look like T4. Simply using...

10 November 2014 8,520 3 View

How can I compute partial correlation coefficients (pccs) in R?

06 July 2014 1,197 2 View

How do you measure the median values of the central tendency?

I've the data in the "Table" given below (as generated from R-package), does anyone out there know how to get the median values as shown in "output"? I've tried using "tapply" but this only works...

05 June 2014 4,750 1 View

How can I find the median in R?

Given a vector, e.g. x

02 March 2014 2,755 5 View

How do I get the median of multiple columns in R?

Given the table "Tgiven", I need to compute the median "val_med" of the columns "val1" and "val2", i.e. need to get the table "Trequired" Below is a simple data structure that mimics the more...

02 March 2014 1,968 6 View

How do I read .dat files in R?

Just loaded, read and worked with ".txt" and ".csv" files in R (no problems), but having trouble loading ".dat" files.

02 March 2014 9,043 8 View

Can anyone help me find the median of groups with [various sizes] in R?

Suppose I have the variables: groups and values in Table 1. Can someone suggest to me how I can obtain the result of the median of the groups as indicated in the table named "Output": groups

02 March 2014 6,009 4 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

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

VIF very high, but correlation is low and coefficient is significant. Which one whould I choose?

Hello. I have a question whether if my coefficients (statistically significant) would be valid when VIFs are really high. In my model, there are independent variables(IV), moderating variables...

26 February 2021 956 13 View

Data Analysis K-S and S-W tests?

Hello, I have conducted analysis where the K-W and S-W have come out as p

25 February 2021 9,648 3 View

Has anyone used the Illumina ITS1 primer sets?

Hi everyone, Illumina provides a list of primers to amplify with high taxonomic coverage the ITS1 region for further fungal sequencing, but I cannot find the exact amount necessary of each...

25 February 2021 6,969 3 View

Statistics: include groups of respondents made by one person for analysis?

Good morning, I could not find literature about this so I am asking. I am organizing data for a questionnaire (N=100) that foresees some personal questions like level of education. For the aim...

25 February 2021 2,090 4 View

How do you mesh a thin solid in Fluent?

Hello, I have used the shell function on SpaceClaim to create thin solids for the model I am studying. These are contained within an enclosure for my study. I chose this approach as it avoids the...

24 February 2021 8,856 3 View

What is the better software for approximation of 3D surface with equations?

I have a massive of x, y, z coordinates of 2D surface in 3D space, which builded in Ansys HFSS or AutoCAD. How can I get the analitical aproximation of this surface by formulas?

21 February 2021 3,444 7 View

Which is the best software or programming language (user friendly) for analysing data?

I have a basic knowledge on Python, R and MATLAB in analysing data. Among those, which is the best and user friendly? Which one should I learn deeply to analyse data?N:B: I want to learn data...

20 February 2021 3,950 15 View