R vs Python for production
I am a beginner data scientist, and mainly use python and seldom use R. I hear this very often from fellow data scientists. "R is not as good as Python because it is harder to productionize"I do not...
View ArticleLooking for certain letters in a Word
I have to write a function which puts out certain letters from a Word and counts them. E.g. function("Testabc",letter[2:5]) = 3, as only "b","c","e" are in the 2nd to 5th letters of the Roman alphabet.
View ArticleCreating a function which creates a vector without needing quotation marks...
I know that dplyr select has the ability to subset a dataset using column names without quotation marks:function (.data, ...) { UseMethod("select") } I would like to do something similar, but instead...
View ArticleProblem removing whitespace from a string in r
I know this seems like a duplicate, but I have tried several solutions to this problem including this one, maybe I have a problem with my scraping that produces this problemExampleThis is what I am...
View ArticleIs there a way to update argument for each call of lapply?
I'm using a function to update my dataframe, the first argument is the dataframe which I want to update, the second one is another dataframe which allows me to update the first one and the third...
View ArticleDisplay or hide shiny widget based on navbar panel
I have the shiny dashboard plus below with a shiny widget in the right sidebar. I would like to know how I could display it only when the tabPanel Plot is selected.library(shiny)...
View Articledose anyone have a solution for the coine problem, when using R?
There are four types of common coins in US currency:quarters (25 cents) dimes (10 cents) nickels (5 cents), and pennies (1 cent)There are six ways to make change for 15 cents:A dime and a nickel A dime...
View ArticleHow do I send multiple dySeries to a secondary axis based on checkbox input...
I'm trying to plot a dyGraph using the lungDeaths timeseries, but I want "mdeaths" and "fdeaths" to be on the secondary axis, if at least one of them is selected alongside "ldeaths".Here's a working...
View ArticleDuplicate rows times count column in r [duplicate]
This question already has an answer here:How to give each instance its own row in a data frame? 3 answersI have a table that has been summed by quantity:Product Average_Price Quantity ABC 25 5 DFG 14 2...
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Plot labels at ends of lines in stacked area chart
I have the following codelibrary(ggplot2) library(dplyr) # create data time <- as.numeric(rep(seq(1,7),each=7)) # x Axis value <- runif(49, 10, 100) # y Axis group <- rep(LETTERS[1:7],times=7)...
View ArticleCreate a column containing specific string expressions derived from another...
In a dataframe, I would like to create a column out of an existing one. The new column (name="Symbol") should contain only a subset of the expressions found on the existing column (name="Description)...
View ArticleComparison between age groups in panel data
I have some panel data across several years for several countries. Some individuals were treated at the age of 18 and from there on every individual that became 18 was treated.eg: In the year 2000 the...
View Articlesplit a data frame with duplicate splits and name the new list
I have a data frame which looks like: cat split_me <chr> <chr> 1 MVHYM7693B c(1, 7) 2 ZRRBS1363E c(2, 7, 18) 3 ZXYLV2407F 3 4 HXPPE8608M 4 5 JDARX0644Q c(5, 19) 6 HDBOK8136L 6 7 DCJPS0833K...
View ArticleSubtract a column in a dataframe from many columns in R
I have a dataframe. I'd like to subtract the 2nd column from all other columns. I can do it in a loop, but I'd like to do it in one call. Here's my working loop code:df <- data.frame(x = 100:101, y...
View ArticleHow is this custom color palette function being passed the 'n' argument?
I'm using the attached R code to create a custom color palette in R, that returns hexadecimal values based on the number of levels. The attached code works perfectly, but I'm having trouble...
View ArticleGenerating random dataset fitting some conditions with R
I want to generate a dataset that fits some conditions to simulate the behaviour of some statistical facts in regression models.To start with, I want a dataset compounded by a single dependent variable...
View Articlewhat it means for AIC NA in glmmPQL (MASS) summary output?
i'm new to glmmPQL. library(MASS) pql<-glmmPQL(fixed = sleeve~pain+stiff+diff,random = ~1|time,family = "binomial",data = knee) when i run this model R give this warning "iteration 1", i don't know...
View ArticleSubtract two columns in a data frame
I have a data frame with several columns, I need to subtract the values of two columns from this data frame and add the resulted values as a new column in the same dataset.Any idea on how to write...
View ArticleInterpreting Interaction Coefficients within Multiple Linear Regression Model
I am struggling with the interpretation of the coefficients within interaction models. I am looking at the outcome of an interaction model of 2 binary (dummy variables). I was just wondering how I...
View ArticleSubscript out of bonds when applying mjca
I try to apply the mjca function (multiple correspondence analysis) from the ca package and I type in:mca_adjusted <- mjca(dataframe, supcol = 1, lambda = "adjusted") The supcol function is supposed...
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