Long waiting time to execute optimization problems
I'm using a Genetic algorithm, bayesian optimization for parameters tuning in R. But, even after running for hours I'm not getting any response. My questions are:Why is it happening? I mean does...
View ArticleIs there a function in R for discrete probability distribution?
I have a set of Bernoulli variables, giving specific values with different probabilities. The variables are independent. I'm trying to build a simple discrete probability table for all the possible...
View ArticleThe tooltip issue in ggplotly for error bars and bar chart
I using ggplotly to plot a graph. I am using the tooltip function to represent the values in the barchart when the cursor is moved on the top of the graphs.Source_Data <- data.frame( key = c(1, 1,...
View ArticleR raster warning: In (function (..., deparse.level = 1) : number of columns...
I am trying to create a raster by subsetting/intersecting two others from the Hansen et al. global forest change data set (found here:...
View ArticleForce read_xml to interpret string as literal XML
I've been struggling to force the read_xml function (xml2 package) to treat my character input as a literal string. Apparently, if the input doesn't look like XML enough, it will try to open it as an...
View ArticleMutating multiple columns dynamically while conditioning on specific rows
I know there are several similar questions around here, but none of them seems to address the precise issue I'm having.set.seed(4) df = data.frame( Key = c("A", "B", "A", "D", "A"), Val1 = rnorm(5),...
View ArticleReactive shiny modules sharing data
I'm trying to create a shiny app using modules. Two dataframes (tables a and b) are reactive and can be modified, a third dataframe (table c) is also reactive and is based on tables a and b. I tried...
View ArticleIs there a way to install R packages using emacs?
I am using ESS, but every time I need to install a new package I have to use R gui. Isn't there a way to do this without leaving emacs?
View ArticleGGPLOT2 scale_x_discrete(labels = abbreviate) problem with october
Recently I tried to make monthly distribution of one value as a geom bar in GGPLOT. I have a problem with plots labels where for october it shows on X-axis 2019-1 instead 2019-10.ggplot(data =...
View ArticleSome way to pull every row before a specific occurrence
I am having difficulty attempting to figure out how to pull all of the rows from a data frame before an occurrence. I know I can pull the first occurrence of something quite easily, but for my specific...
View ArticlePerforming time series analysis of quanteda tokens
I am running into issues figuring out a way to pair time information with each individual token in quanteda. I want to run times series analysis on a list of 25 different tokens. I know that I can just...
View Article'df' must evaluate to column positions or names, not a list- pivot_wider
I have a df similar to this ID Concentration A 1 A 2 B 3 B 4 and I would like the pivot the id's into columns with the values being the concentrations and missing values being filled with NAs. At first...
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How to code a subscript i within a function?
I have the following function that I am trying to write in R: Currently, I have the following code, but I don't understand how to denote the subscript i?f5 <- function(x) {((x^4 - 16*x^2 + 5*x)/2)}
View ArticleHow to convert "heading" rows into new columns
I have data (imported imperfectly from a PDF) that has everything in a single column, with certain rows as descriptive headers. For example:dfx <- data.frame(V1 = c("Box 1", "abcd10", "bcde15", "Box...
View ArticleMerge tables by DateTimeStamp in R
I would like to merge at least two tables using a DateTimeStamp column of the format "%Y-%m-%d %H:%M:%OS" (e.g. "28-Jun-2019 20:50:55.123"). Although at different positions, the DateTimeStamp column is...
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error with rda test in vegan r package. Variable not being read correctly
I am trying to perform a simple RDA using the vegan package to test the effects of depth, basin and sector on genetic population structure using the following data frame. datafile. The "ALL" variable...
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ggplot2 seperating legend by shape
# Data: zz <- "Small Large Lat Long 1 51 2 11 10 2 49 0 12 11 3 77 7 13 13 4 46 5 12 15 5 32 6 13 14 6 54 3 15 17 7 68 0 14 10 8 39 5 12 13" Data <- as.data.frame(read.table(text=zz, header =...
View ArticleNxN tabluation over columns in R and check duplicacy between columns
I have a dataframe with unique items procured on rows and their corresponding sources on columns (Basically this is a data which I have "dcast" from original data)Now it looks like thisDF <-...
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No spacing between the tab names in shiny applications
I have created a shiny application and there is no extra spacing between the tabs which I have rendered to the UI. I am using bs4dash shiny framework for the UI. Is this issue related to the this...
View ArticleMap Arctic/subarctic regions in ggplot2 with Lambert Conformal Conic...
I am trying to map lat/lon locations in the Arctic/subarctic region using ggplot2, and colour them by type. Here are the packages I'm using:library(ggplot2) library(rgdal) library(ggmap) library(sp)...
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