Questions tagged as 'r'

Tagged questions
2
answers

Adjust data to exponential model in R

Good evening, I have two variables about growth in insects: y- head width measurements (0.5.0.8,0.10,0.12,0.16) age at which they were measured (1,2,3,4,5) I need to see if this growth fits exponentially. I need the values of the generated...
asked by 08.02.2015 / 00:56
1
answer

Specify Miktex path in Rstudio

I'm trying to compile a .rmd file into pdf using Rstudio's Knitr. Since I am using a computer (Windows 7) with permission restrictions, I had to install MikTeX in the Documents folder and Rstudio is not finding this installation. I would like to...
asked by 03.02.2015 / 19:57
1
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Installation Package mgarch in R

I want to install the package mgarch . I downloaded it by here . It seems like I need to install devtools as explained here . I do all this and I can not. How can I solve this problem? I do the following: install.packages...
asked by 06.02.2015 / 21:39
2
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Access the values given by the "boot"

I'm having a problem getting some values given by the boot function in the R: My data dados<- c(16483.82, 16463.06, 15649.35, 15615.27, 20034.44, 16254.43, 16946.72) meanFunc <- function(x,i){mean(x[i])} bootMean <-(boot(da...
asked by 04.02.2015 / 21:44
1
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Maximum likelihood estimation using nlm

I'm interested in estimating two maximum likelihood parameters using the nlm function. **-------- FUNÇÃO RBETAMIFI -------** rbetamifi <- function(n,mi,fi){ p <- mi*fi q <- (1-mi)*fi return(rbeta(n,p,q)) } **---------...
asked by 26.02.2015 / 23:25
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Does anyone know how to do a Web Scraping on the SICONV (Free Access) website?

I'm trying to extract the information from the siconv site that deals with covenants in R: link link It turns out that when I use R, with the rvest and httr packages, it redirects to the login screen located at link . I tried to...
asked by 02.12.2018 / 01:28
1
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Using function to make a subset and plot with only 1 command (R)

My dataFrame calls EWMA_SD252 3561 obs. of 102 variables (daily volatilities of 100 shares since 2000), follows a sample: Data IBOV ABEV3 AEDU3 ALLL3 3000 2012-02-09 16.88756 15.00696 33.46089 25.04788 3001 2012-02-...
asked by 22.05.2014 / 01:00
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Reading and viewing images PolSAR (Large amount of data)

I would like to know if you know any method for reading and viewing images that have a lot of data and can not load everything in RAM (+ - 20 GB), I could see and think in two ways to reading and for later visualization of these images, follows...
asked by 31.05.2018 / 17:13
1
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File download from form completion

I'm trying to access a website, fill out your form and download the file, but I'm encountering some difficulties. This is my code so far: #library's require(rvest) #website url <- ("http://www.anbima.com.br/est_termo/Curva_Zero.asp") pg...
asked by 02.03.2017 / 19:18
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What is the "listw" argument in multispati (multivariate spatial analysis) - software R?

It involves spatial dependency, but I do not know how right.     
asked by 13.07.2017 / 00:12