R Shiny with flexdashboard; benefits
Why should I incorporate Shiny into my flexdashboard? I know shiny brings reactivity into the mix , but say I was using the library crosstalk which allows you to share data to different widgets and...
View Articlefor loop in R — generating and calculate different results
Giving rnorm(100) I need to create a for loop in R to calculate the mean and the standard deviation generating 100 different numbers each time, and store those results in a vector. How can I accomplish...
View ArticleR not identifying column headers as object- data read from xlsx
I'm learning to run linear regressions in r. I have a simple data set that I have read in with read.xl function. I get the column names fine but they aren't identified as objects so I can't do anything...
View ArticleHow can I extract files directly from a RAR archive in SFTP to .rda?
I need to read files from a RAR archive located in a STFP directly to R and there's no need to know the file names inside. Is that possible?My code is this (I omit declaration of variables):# Ruta SFTP...
View ArticleHandling R function
I have codedcanada_raw <- readOGR(dsn = "data/gcd_000b11a_e", layer = "gcd_000b11a_e", use_iconv=TRUE, encoding="CP1250") canada_raw_json <- geojson_json(canada_raw) canada_raw_sim <-...
View ArticleConfused about two dimensional factor in R
I have the following data frame:dat <- data.frame(toys = c("yoyo", "doll", "duckie", "tractor", "airplaine", "ball", "racecar", "dog", "jumprope", "car", "elephant", "bear", "xylophone", "tank",...
View ArticleHow do I explain a complicated function in Rmarkdown?
I have a somewhat complicated R function (different parts refer to various equations I'd like to explain.) I want to write my code using R Markdown, but I need to be able to explain the different parts...
View ArticleIssue with gganimate installation
Trying to install gganimate and I run into the following error regardless of whether I install from the CRAN repo or from the git source (thomasp85/gganimate). * installing *source* package 'gganimate'...
View ArticleHow can I convert Ensembl ID to gene symbol in R?
I have a data.frame containing Ensembl IDs in one column; I would like to find corresponding gene symbols for the values of that column and add them to a new column in my data frame. I used bioMaRt but...
View Articlelibrary(pryr) returns a massage. Registered S3 method overwritten by 'pryr':...
When i active a package called "pryr". It returns a massage->library(pryr) Registered S3 method overwritten by 'pryr': method from print.bytes Rcpp. I would like to know what is that meaning?...
View Articlecalculate AUC using trapz function in R for each mmol/ dl per each ID? I want...
strong text#calculate of AUC per each IDcalculate AUC per ID, for CONC>12?sapply(split(data.f, data.f$ID), function(data.f) trapz(data.f$time, data.f$conc)) data.f=ID1 time2 conc3 2 5 12 3 7 6 4 12 15
View ArticleR function/package to standardize wrongly ocr-ed words?
I am scrapping/'ocr-ing' hundreds of pages with the wonderful pdftools package which include repeatedly names of the same persons. By and large the extraction works well, but in a few instances names...
View ArticleData Scraping with R
I am very new at using R and I am trying to scrape a table off a webpage. I think I am having trouble identifying the CSS selector and that's why I am getting an error message but I'm not sure. Can...
View ArticleSys.timeDate takes local time zone if converted to dataframe ? Probably a bug?
Why does the SYs.timeDate considers local time if converted to dataframe ?timeDate::Sys.timeDate(FinCenter = "America/Mexico_City") America/Mexico_City [1] [2019-11-28 03:31:07] (timestamp =...
View ArticleGather all the unique values from 2 columns into a new column
I have a dataframe which includes all the nodes' connections in a network and I want to create a new dataframe named 'nodes' with all the unique nodes. Im trying to do something like...
View ArticleAdd column to R dataframe that is length of string in another column
This should be EASY but I can't figure it out and search didn't help. I'd like to add a column to a dataframe that is just the length of the strings in another column. So say I have a data frame of...
View ArticleR - Filter rows by columns - column names contained in an other dataframe
An other basic question, but I can't seem to find a solution.Take mtcars as an example. I would like to know the number of rows, where vs AND am are above 0.5. ANDdf<- mtcars x <- subset(mtcars,...
View Articledata.table: calculation condition on presence of value within group
With some datalibrary(data.table); set.seed(42) dat <- data.table(id=1:5, group=c(1,1,1,2,2), time=c(1,2,3,1,2), val=runif(5)) > dat id group time val 1: 1 1 1 0.9148060 2: 2 1 2 0.9370754 3: 3 1...
View ArticleDate slider not doing anything, Objective is to filter data based on slider...
COPY is name of my data frame (libor interest rates fred st.lious), see the picture attached or link below image. Year (COPY[,14]) column is numeric, Earlier I tried working with date type but that...
View ArticleHow to make a for loop test for matches between columns of different data...
I am trying to create a for loop in R that will make a new data frame ("results") when values of a column ("areaName2") in one data frame (df2), matches the value in a column ("ISLAND") from a...
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