Recent questions tagged R

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r - Closest pair for any of a huge number of points

We are given a huge set of points in 2D plane. We need to find, for each point the closest point within the set ... (could be 4 also) Any idea? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Is it possible to use the "theme_light()" together with "theme" in a ggplot command?

If I write the following plot seen below and use theme(plot.title = element_text(hjust = 0.5)) to center the title ... = 0.5)) + theme_light() See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Batch searching regex in Shiny DT datatables with spaces (not pipes)

Following on from this post can anyone please tell me if it's possible to implement a way to search an ... Biobase_2.46.0 BiocGenerics_0.32.0 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Making the X_axis more visible?

This is the code I used, the goal is to visualize the evolution of covid in north africa library(readr) library ... instead of days plot. r See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Can't fit a normal curve to a grouped histogram

I'm struggling with an assignment I was given. We have to make a grouped histogram with normal fit superimposed. ... my graphs look like this: See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - How to filter rows based on the previous row and keep previous row using dplyr?

I am trying to subset rows of a data set using a condition that's based on the previous row, whilst ... Any help would be greatly appreciated! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - How to get summary statistics for multiple variables by multiple groups?

I know that there are many answers provided in this forum on how to get summary statistics (e.g. mean, se, N) for ... group B, E and I etc...) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - How to get right Map for India in highcharts?

I am working on covid dataset and have mapped the data on Indian Map using highcharts but that Map is not latest & ... that I can refer to ?? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Map with geom_bin2d overlay with additional stat info

I am trying to reproduce something similar to this map using ggplot2: This is what I've done so far: load(" ... set can be downloaded here: data See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Union of igraph objects loses attributes

I have two igraph objects, which have different color attributes. Vertices "A" and "B" in first graph are ... the distinct colors when joining ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - rmongodb: using $or in query

I'm struggling to create a query using $or within R and rmongodb. What I'd like to emulate is this from cmdline ... . I'm stuck on this one. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Sorting rules by lift and confidence

I am trying to find association rules using the apriori function from arules package in R. rules <- apriori(data= ... lift at the same time? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - How to add a hole to a polygon within a SpatialPolygonsDataFrame?

I have a list of polygons in a SpatialPolygonsDataFrame and need to set one of them as a hole in an other. ... " flag on an existing polygon? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Add Tooltip to Tabs in Shiny

I am trying to add tooltips/popovers using the shinyBS package for a Shiny application but am having an issue ... and Tabset Panels for testing. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Sort data by row

I have a data frame like Id A B C D E F a 1 2 9 4 7 6 b 4 5 1 3 6 10 c 1 6 0 3 4 ... respective column names. Is there any nice way to do this? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Get the month from the week of the year

Let's say we have this: ex <- c('2012-41') This represent the week 41 from the year 2012. How would I ... standard date format like %Y-%m-%d). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Dimension of a 1 x m Matrix?

R suprises me almost every day again and again: m <- matrix( 1:6, ncol=2 ) while( dim(m)[1 ... efficient solutions are appreciated. Many thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Using dplyr::quos() with a list argument rather than the ellipsis argument

I am using dplyr and trying to create a function to calculate p.values based on grouping arguments. I would like ... what I could do instead! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Filtering on grouped variable

I have a dataframe: df <- data.frame( Group=c('A','A','A','B','B','B'), Activity ... those groups that necessarily contain both the activities? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Increasing minimum point size in ggplot geom_point

I am using following data and code: > > dput(ddf) structure(list(xx = c("aa", "bb", "cc"), gp = ... be increased so that it is clearly visible? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Imperfect string match using data.table

Ok, so I posted a question a while back concerning writing an R function to accelerate string matching of ... lapply correctly here? Thanks! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Programmatically create tab and plot in markdown

I'm trying to create a dynamic number of tabs in my rmd with some content inside. This one doesn't help. Something ... = Sepal.Width)) }) ``` See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - ggplot - connecting points in polar coordinates with a straight line

I am working on a similar issue, as already discussed here: r - ggplot2: connecting points in polar coordinates ... get towards where I wanted. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - How to duplicate columns in a data frame

Is there any efficient way, without using for loops, to duplicate the columns in a data frame? For ... help would be greatly appreciated! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Find the most repeated row in a matrix

I have about 10000 replicates of a sample in a matrix. My matrix has 1000 rows and 6 columns. Numbers in ... go back manually. Any suggestions? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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2.6k views

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r - sqldf can't find the data with error "no such table"

I've been using sqldf in my R-scripts until now when I got the following error: library(sqldf) data(mtcars) ... anyone know what's the issue? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - How can I use merge to cbind two dataframes

Suppose I have two dataframes: df1 <- data.frame(matrix(rnorm(10*10),ncol=10)) df2 <- data.frame(matrix( ... in the application of merge here). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - How to calculate the predicted probability of negative binomial regression model?

I use glm.nb() function in R MASS package to estimate the parameters of a negative binomial regression model. How ... 31 0.734058 35 1.000000 See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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