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Questions tagged [r]

R is a free, open-source programming language and software environment for statistical computing, bioinformatics, visualization, and general computing. Please provide minimal and reproducible example(s) along with the desired output. Use `dput()` for data and specify all non-base packages with `library()` calls. Do not embed pictures for data or code, use indented code blocks instead. For statistics related questions, use https://stats.stackexchange.com.

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R Network Graph with mult-line labels?

I am trying to create a network graph of nodes with labels that contain multiple lines. The lines should have different font size and style to convey information about that node. The details must be ...
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0answers
6 views

Exporting multiple imputed objects with MICE

I am imputing my missing data using mice. The problem here is that it takes an hour or two to get the imputation done. So as it finishes imputing, I would like to export it for future use so that I ...
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0answers
10 views

How reduce the noise of a image?

I am loading text from some images. With some of them, I am having problems, with this type of image library(magick) library(tesseract) image_read(fichero.jpg) %>% tesseract::ocr(engine = ...
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0answers
4 views

beamer rmarkdown presentation unable to knit pdf file instead knit html document that too is not knitted

I have a beamer rmarkdown file for preparing PDF presentation as teaching material. However, when I click knit with pdf, the output is displayed in html document, instead of beamer_presentation (pdf). ...
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0answers
15 views

Ascending count within each group in a dataframe [duplicate]

For a dataframe with groups, like so: df <- data.frame(group = c(rep("A", 5), rep("B", 3), rep("C", 4))) group 1 A 2 A 3 A 4 A 5 A 6 B 7 B 8 B 9 C ...
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2answers
18 views

dynamic column names seem to work when := is used but not when = is used in data.table

Using this dummy dataset setDT(mtcars_copy<-copy(mtcars)) new_col<- "sum_carb" # for dynamic column referencing Why does Case 1 work but not Case 2? # Case 1 - Works fine mtcars_copy[,eval(...
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vote
1answer
15 views

Changing datastructure to create correct bar graph in ggplot

I would like to make a graph in R, which I managed to make in excel. It is a bargraph with species on the x-axis and the log number of observations on the y-axis. My current data structure in R is not ...
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1answer
21 views

subtract the different dimensional arrays in R

Let A and B be arrays, of dimension [2,3,4] and [100,2], respectively. Note that 2 is the common dimension. My desired answer is an array C of dimension [100,2,3,4] such that C[h,i,j,k] = A[i,j,k] -...
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2answers
30 views

Wide data frame with 4 columns to long data frame with 3 columns

I have a data frame (sample below), as follows: df = structure(list(Stage1yBefore = c("3.1", "1", "4", "2", "NA"), Stage2yBefore = c("NA", "2", "3.2", "2", "NA"), ClinicalActivity1yBefore = c(TRUE, ...
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0answers
17 views

p.adjust function in R gives unexpected value of 1 for all raw p-values

I am trying to adjust my raw p-values using the Bonferroni method. However, all the adjusted p-values show values of 1. I don't expect this. I have run this function many a times previously. I also ...
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1answer
23 views

Calling a variable from a data frame, the name of which is stored as character

So basically I'm using a For loop, that loops between names that are stored in a vector(partners) and returns a the names as data frames containing specific data. The code goes something like this ...
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2answers
27 views

Second Modest Value

DataSet pincode Time 12345 10 12345 10 12345 10 12345 9 12345 9 23456 7 23456 7 23456 5 Expected Output Pincode Time 12345 10 12345 9 23456 ...
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1answer
21 views

Plotting multiple graphs from a list

I have a time series data from 1990 to 1994 of 5 variables in 15 sheets. I read all these data to a list. I need to do a time series plot of all the 5 Variables for 15 companies in multiple graphs. ...
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0answers
12 views

labelling grouped bars in geom_bar

I want to add labels to individual bars in a set of grouped bars using geom_bar sit3 is the data.frame sit4.long <- melt (sit3) ggplot(sit4.long, aes(Type, value, fill=variable)) + geom_bar(stat="...
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1answer
28 views

Splitting list of n element into one dataframe of n vectors

I have a list which contains say r of 5 elements of unequal length r $First [1] "Jan" "feb" "March" "Ram" $Second [1] "Jan" "feb" "April" $Third [1] "Jan" "feb" "May" "Shyam" $...
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0answers
8 views

Error in if (ncol(x) == 1L) { : argument is of length zero [duplicate]

I am trying to create a panel dataset with following data: my data looks like this country GDP_2012 GDP_2013 GDP_2014 Exports_2012 Exports_2013 Exports_2014 A 50 150 160 ...
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2answers
26 views

Is there any method to combine data frames properly?

I have a problem with combining data frames which share the same rows. I imported rasters from different folders and converted them into data frames and tried to combine them together but the data don'...
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0answers
9 views

How to fix “The metric ”Accuracy“ was not in the result set. AUC will be used instead”

I am trying to run a logistic regression on a classification problem the dependent variable "SUBSCRIBEDYN" is a factor with 2 levels ("Yes" and "No") train.control <- trainControl(method = "...
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0answers
15 views

Formatting scale with a categorical Variable in a GGPlot?

I am new to R and struggling to do a basic ggplot! I am trying to plot the number of employed (y-axis) for each constituency (X-axis). Because there are 632 constituencies this is causing some ...
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0answers
11 views

Minute.steps parameter unused argument error for timeTinput

I have trying to put a step of 15 minutes on my timeInput for a shiny app but the argument minute.steps is not recognised. Is there anything I am doing wrong? library(shiny) library(shinyTime) ui &...
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0answers
11 views

how can i solve this Error in plot.svm() missing formula in R

i am trying to plotting svm but every time i get this error "Error in plot.svm(Linearclassifier, training_set) : missing formula. Calls: SVM_Function -> plot -> plot.svm" Linearclassifier = svm(...
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1answer
12 views

Replicate XL GRG Nonlinear solver in R (example provided)

I am trying to replicate with R this optimization problem for which the XL solver seems to do the job (I am assuming it's a decent one); I seem to fail getting the package/function ticking all the ...
0
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1answer
16 views

R package googlesheets default browser change

When I run #get the library library(googlesheets) #initialize token gs_auth(new_user = TRUE) it always opens my firebox browser, however, I want it to open my chrome browser, is there a way to ...
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0answers
15 views

R: error in tableplot: Error in if (by < 1) stop(“'by' must be > 0”)

I'm a beginner in R and cannot understand what's the problem in that simple code: install.packages("tabplot") library("tabplot") library("MASS") Boston$chas <- factor(Boston$chas) Boston$rad <-...
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1answer
27 views

Remove NA in 3D array and reshape

I have an array num [1:800, 1:533, 1:3]. Essentially an image with 800 columns, 533 rows and 3 channels. In every row of every channel, there is exactly one NA. How can I remove all NA's in all ...
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0answers
13 views

Repeated two way anova in r

I would like to do a two way repeated anova in r. My data includes three species (A, B, C) subjected to three treatments (1,2,3) - there were 3 replicates of each treatment. Class data (1-5) on each ...
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0answers
14 views

Processing while uploading files in R shiny

I have several file inputs in an R shiny application that feed info to create different datatables (different tabs). When I click in any of the buttons to perform operations, the file inputs that ...
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2answers
32 views

How to add a matrix to a data.frame?

below is some dummy data. Suppose I have a dataframe df = data.frame(source = c("X1", "X2", "X3", "X4", "X5", "X6", "X7", "X8", "X9", "X10", "X11", "X12", "X13", "X14", "X15",...
-1
votes
0answers
16 views

K clustering in R not returning expected values

My clustering script is not returning the results I want, and I am trying to figure out why exactly that is, or if there is a different code command I should be using. I am trying to do a k means ...
0
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1answer
22 views

having the error message “number of items to replace is not a multiple of replacement length”

I get the error message "Error in dist.mat[j, i] <- d : number of items to replace is not a multiple of replacement length" when I run the script: uncenter.distance <- function(X) { n &...
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0answers
36 views

How to download this data using R/Python

I was trying to download data from below link: Link Below is my R code- library(XML) library(RCurl) readHTMLTable(getURL("https://www.nseindia.com/products/dynaContent/common/productsSymbolMapping....
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0answers
13 views

How to automate data labels [duplicate]

I need to automate data labels on my bar graph. H <- c(0, 1, 4, 0, 17) # Create the data for the chart, cont3.# M <- c("Very Low", "Low", "Medium", "High", "Very High") barplot(H, col =c("...
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2answers
28 views

Looping read.xlsx for reading in multiple sheets and saving them as separate DF´s

I want to read in sheets 3:8 of my excel file and save them separately. I got something like this: for (y in 2012:2017){ save("Year" ,y)<- for (i in 3:8) { read_xlsx("/Users/.../Desktop/...
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0answers
31 views

R fast way to read values from a matrix?

I wish to read values as fast as possible from a matrix (or a vector). The standard way would be as follows: # defining the matrix x = matrix(runif(100), nrow=10) # reading one value x[2,3] I have ...
0
votes
1answer
21 views

Convert repeating values in a column into NA

I would like to convert repeating values in a vector into NA's, such that I keep the position of the first occurrence of each new value. I can find lots of posts on how to solve the removal of ...
1
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2answers
19 views

combine rows in r, summing values and concatenating characters; combining factor levels

I want to combine two or more rows, such that the numeric values for variables (v1..5) are summed and the character values, which are factor levels are combined like this: v1 v2 v3 v4 v5 fa fb fc ...
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0answers
3 views

Ugarchforecast Error: “ugarchforecast-->error: n.roll must not be greater than out.sample!”

So i did a gjrGauch regression spec<-ugarchspec(variance.model = list(model="gjrGARCH"),mean.model = list(armaOrder=c(0,0))) fit<-ugarchfit(spec,data = FF4F$WML) and want to do a forecast ...
1
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2answers
23 views

How to get geom_point size to reflect actual values rather than relative values

There is probably a simple solution to this, but I'm too much of a newcomer to know what it is - so I'd greatly appreciate any help. I'm trying to create a graph that will show the average time to ...
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0answers
10 views

error in MFA not convenient group definition

I'm trying to run MFA on a dataset of 23 columns. The first eleven are categorical, and the last twelve are continuous. I keep getting the error message "not convenient group definition" I've made ...
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1answer
15 views

sum of one column (with same name) in all data frames in a list

How can I sum one specific column in all data frames in a list an put them in a new data frame? An small example is: A <- data.frame(matrix( nrow = 2, ncol = 2)) B <- data.frame(matrix( nrow = ...
1
vote
1answer
27 views

dplyr filter to get only the values that one of the groups take

I would like to filter to get the rows from any group of my tibble, where one of the variable matches the values taken by one of the groups. structure(list(type = c("A", "A", "A", "A", "B", "B", "B", ...
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1answer
24 views

How do I write this complicated formula in R Markdown?

I have been trying for days to figure out how to write this formula in R markdown... ...but I didn't find anything on the web. Can you help me please? Thanks.
1
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1answer
20 views

R: retrieve dataframe name from another dataframe

I have a dataframe dataselect that tells me what dataframe to use for each case of an analysis (let's call this the relevant dataframe). The case is assigned dynamically, and therefore which ...
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1answer
20 views

data aggregation and invalid data type message?

I have been stuck on how to aggregate some date for a while. DF2 <- aggregate(.~fund, cbind(DF["fund"], test[assets_cols]), sum) I am receiving the following error message, Error in model....
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0answers
9 views

How can I make 2 clustering column in heatmap?

I would like to draw heatmap. On the other hand, I want to make a clustering only with binary (case vs. control; status = 0 /1) not like the result attached. What should I do? Many thanks advanced. ...
1
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1answer
19 views

Prevent R abbreviating single string output in console?

If I run Sys.getenv(c("R_HOME")) I see [1] "C:/PROGRA~1/R/R-36~1.0" Which is an abbreviation of the full path. How can I return the full string (in this case, the full path)?
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0answers
4 views

How to use here() for paths to css, before_body and after_body?

I have a collection of RMarkdown documents which are distributed over a hierarchy of folders. All of the documents refer to the same CSS and header/footer files. I have the paths to these files hard-...
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0answers
5 views

How can I plot multiple control limits in an EWMA control chart with qcc?

I can plot an EWMA control chart with 3 sigma limits (nsigmas=3). Can anyone help me with plotting additional control lines on the same chart such as 1 and 2 sigma limits? The only way I can think is ...
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0answers
8 views

How to simulate a pedigree using simul.pedigree with different number (but fixed) of sire and dam in R

I'm new with R and I want to simulate a livestock pedigree of 5 generations. I'm using simul.pedigree in synbreed package to set up a pedigree. I successfully make a random mating pedigree of 5 ...
0
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1answer
18 views

Error with if statement when runnin R in jupyter

I am running the following if conditin in R without any problem: nrow<-ifelse(S1_input, 1, ifelse(S2_input & nchar(bands)>40, 2, ifelse(S1_S2_input & nchar(bands)>40, 3, ifelse (...