loading file with quotes (with and without escape character) within quoted...
When loading a CSV file using fread() the value (bouth "Hendr\"ix" and "Hendr"ix") in one of the columns causes the warning "Found and resolved improper quoting out-of-sample. First healed line...
View ArticleHow do I turn a series of IDs into corresponding URLs?
So I have a list of 1350 IDs from the RePEc database that look like this:repec_id <- c("RePEc:bep:uomlwp:umichlwps-1003", "RePEc:hal:wpaper:hal-02187883", "RePEc:hal:journl:hal-02184200")Each ID...
View ArticleWarning in the Matchit package ("Glm.fit: fitted probabilities numerically 0...
I'm running a code with around 200.000 observations, where 10.000 were treated and the remaining I'm trying to match using the package MatchIt. Because of one of these variables, there is a warning...
View ArticleRearrange GIS data of Origina Destinations to one row each point
I start with a "wide" data set of GIS data of Origin Destinations (OD), that I want to rearange into a longer data set of one row for each point. I already managed to melt and then dcast to rearange...
View ArticleRemove a specific html node from a set of nodes
I want to scrape the reports from https://paidabribe.com/reports/paid in R. Everything works quit good with my following code besides some reports contain an embedded element under the report which is...
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How do I adapt the number of required colors for a geom_bar plot automatically?
I would like to make a bar chart for a column with differently colored bars using ggplot.library(ggplot2) set.seed(123) df_a <- data.frame(A1 = sample(c(0, 1, 2, 3, 4), 10, replace = TRUE))...
View Articlehow to open grib file in r software
In r, I've been accessing netcdf files and just wish to check the equivalent data which is provided also within a grib file (i.e. ERA5 data) - what is the best means to do so? Thanks Trisha
View Articleshift in dates using complete on data.table
Why is the complete function shifting index by 1 hour?library(xts) library(tidyr) x = seq.Date(from = as.Date('2012-03-10'), to = as.Date('2012-03-25'), by = 'week') x = xts::xts(1:length(x), order.by...
View ArticleHandling java.lang.OutOfMemoryError when writing to Excel from R
The xlsx package can be used to read and write Excel spreadsheets from R. Unfortunately, even for moderately large spreadsheets, java.lang.OutOfMemoryError can occur. In particular,Error in...
View ArticleWriting S4 method based on base R concatenation function c(). Use of...
I am trying to write a method for concatenation of two S4 classes that I have defined:setClass("My_item", representation(contents = "vector")) setClass("My_group", representation(members = "list")) The...
View ArticleHow can we extract London weather in 2000 via Darksky API?
#install.packages("darksky") library(darksky) library(tidyverse) # current verison packageVersion("darksky") Sys.setenv("DARKSKY_API_KEY" = # Secret API Key ) Sys.getenv("DARKSKY_API_KEY") #This...
View ArticleRGui loads outdated .Rprofile due to .RData in working directory
I recently adapted my .Rprofile and was puzzled when RGui did not load the new .Rprofile (RStudio did load it) but instead held on to the old version. After some trial and error I figured out that the...
View ArticleR for loop results
I need to store the results of my loop in a data frame but i can't figure it out. I got the loop working as shown below. Pasta_pesto <- list(ingredienten =...
View ArticleR: How to carry the last observed value forward, within the same unit of...
I have a little problem with R and the tidyverse that I unfortunately can't seem to solve. Say we have quarterly observations of three shops (in the minimum working example the values really don't...
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plotly::ggplotly legend titles not centering for a faceted ggplot
I'm trying to turn a ggplot plot into an interactive plotly for an R Markdown HTML presentation.If 'a' is my ggplot, the important bit of code looks like:x <- list(title = "Title 1") y <-...
View ArticlePasting cell entries into one cell and deleting empty cells
I have the following problem: I have a table with many empty cells. But the first column does not contain empty cells. Like this:structure(list(variable = c("variable", "Mean (M)", "Standard",...
View ArticleHow to create a dataframe from using data from another dataframe?
I'm not sure if this is possible in R, but I have a dataframe original_data with one row and columns as follows:A Ar A1 A1r B Br B1 B1r C Cr C1 C1r...... 0 0.1 0.5 0.1 0.1 0.6 0.7 1.2 1.4 1.2 1.5...
View ArticleQuadratic Programming Setting up Constraint
I am trying to set up a simple OLS model with constraints on the coefficients in R. The code below is working. However, this demonstratesy = c + a1x1 + a2x2 + a3x3 with constraint a1+a2 = 1 I would...
View ArticleR Combine Two Data Frames, Remove Unique Patient IDs
I have two data sets: OriginalPTs and RetestPTs. Each has three columns, PID, Speed, and Group. Group is either "original" or "retest" depending on which data frame. All values for RetestPTs$PID are in...
View ArticleWhy r shows an error when using dplyr and ifelse together?
I am trying to use the "ifelse" function in R grouping but it doesn't work. My data is something like this:Breed Animal NOR 1 NOR 1 SWE 1 HOL 2 NOR 2 NOR 3 NOR 3 So I want to create a new variable,...
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