How to reshape and then convert a data frame into dgCMatrix?
I have a data frame like following (the rownames are "1", "2", "3"...). Since there are non unique entries in each column, I cannot assign any of them as row names.gene cell count a c1 1 a c2 1 a c3 4...
View ArticleExtract multiple descriptive statistics
Having a dataframe like this: df <- structure(list(id = c(43, 11, 24, 12), a = c(0.291435739245075, 0.309022489024281, 0.342122441665493, 0.302379459085847), b = c(0.200071678165039,...
View ArticleConver Leaflet map to static plot and save it as pdf
How would one convert leaflet map to a static plot and then save it as pdf?, I have createa a large leaflet map, that has over 150 MB, using mapshot does not work because it is very large. Now I think...
View ArticleCheck if value from one dataframe exists in another
I am a beginner in R and want to know how it will works for each row.Eg.I have a two data frames.I want to see if the rows exist in the other data frame. I want to loop every row in ab$Fruits and check...
View ArticleCan I use R to only analyze data past a certain date?
I have an excel sheet that I imported into RStudio which contains data for every subject of a certain population. Each subject has their own set of data with corresponding dates, but I only want to...
View ArticleCreate aggregate variable in long data format
I'm sure there's a question similar to this already, but I couldn't make them workI am trying to calculate aggregates (or subtotals) in a dataframe of long format. In the group column I want an...
View ArticleCount NAs between first and last occured numbers
Here is my toy datasetdf <- tribble( ~x, ~y, ~z, 7, NA, 4, 8, 2, NA, NA, NA, NA, NA, 4, 6) I want to get a dataframe with a number of NAs for each variable only between the first and the last...
View ArticleCan you list an exception to tidyselect `everything()`
library(tidyverse) iris %>% as_tibble() %>% select(everything()) #> # A tibble: 150 x 5 #> Sepal.Length Sepal.Width Petal.Length Petal.Width Species #> <dbl> <dbl>...
View ArticleRemove all rows below a certain threshold in R
I have a matrix of data and I wanted to remove all rows that have values below a set threshold of 10. I've checked other posts on here and they don't seem to work in my case in R for some reason. I...
View ArticleCross tabs/frequency tables with long-form longitudinal data in R
I have a longitudinal dataset with data in long format (one row for each time point for each participant), and I would like to get cross tabs for demographic variables at each time point. Simplified,...
View Articleconvert event dates to time-event columns for survival analysis
I am trying to convert a list of observation for censored data to a proper format for survival analysis in R. To give an exemple, the code should transform like this. event.6mo event.12mo event.24mo 1...
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How to filter and copy a value in R dataframe?
I have a dataframe like as shown belowTest <- c('Sodium','Heamo Index.','Lipae Index','ictoric index','Chloride','Blood pressure','Test Index') value <- c(12,'No haemo',NA,'No ict',21,32,NA)...
View ArticleIs there a way to set locales in cluster in r?
I have to run a piece of code using parallel processing to reduce the execution time. Each steps are independent of each other. I have created a cluster, cl = makeCluster(cores) registerDoParallel(cl)...
View ArticleFiltering column based on matching conditions in another column
I am trying to perform a simple filtering using dplyr but it doesnt seem to work with what I want to do.I want to filter a dataframe based on Time as an example when only if Time matches the category,...
View ArticleIs the colorspace R package part of the Tidyverse? (conflicting information)
Is the colorspace R package part of the Tidyverse? Looking at this list of Tidyverse included packages it appears the answer is "No".However, when I load the tidyverse via library(tidyverse) it appears...
View ArticleHow can I perform a PCA with variables of three different data frames and...
I have three data frames and I want to perform a Principal Component Analysis (PCA) in R. I merged the data frames with rbind() and did a PCA with that. That worked. But I want to discriminate the dots...
View ArticleSplit by variable in a specific group using dplyr
stackoverflow! How can I both split and duplicate dataframe using dplyr? Just imagine, that I have got a data frame with grouping variable (i.e. group), sample id (i.e. sample) and...
View ArticleHow do I create side-by-side barplots with my data set? [closed]
So my data set is full of three variables, year, age group, and annual average. The year goes from 1989 to 2019 for each age group and each age group is 5 years until we get to 65-and over which is...
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Heatmap/Contours based on Transportation Time (Reverse Isochronic Contours)
Note:Solutions in either python or r are desired.Temporary Note:Existing answers do not fully cover the issue, both conceptually and implementation wise.I am trying to draw contours based on...
View Articlehow to make a subset of cells expressing certain gene in seurat R
I want to create a subset of cell expressing certain gene only. Here is my coding but it always shows 'No named arguments passed'. I have no idea how to correct that. Dbh.pos <- Idents(my.data,...
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