Recent questions tagged R

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r - Error in eval(expr, envir, enclos) - contradiction?

Edited to give a fuller example of code and specific issue I'm writing a function to produce time series ... idea why the seeming contradiction? See Question&Answers more detail:os...

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

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558 views

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r - Applying revgeocode to a list of longitude-latitude coordinates

I'm trying to get the Zip codes of a (long) list of Longitude Latitude coordinates by using the revgeodcode ... Any help would be 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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582 views

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r - Include zero frequencies in frequency table for Likert data

I have a dataset with responses to a Likert item on a 9pt scale. I would like to create a frequency ... option that gives the desired result. See Question&Answers more detail:os...

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

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438 views

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r - Can I escape characters in variable names?

Sometimes it would be useful to name variables like no programmer should name his or her variables. Of course ... for any ideas in advance! 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 tryCatch and rvest to deal with 404 and other crawling errors

When retrieving the h1 title using rvest, I sometimes run into 404 pages. This stop the process and returns this ... and continue the process ? See Question&Answers more detail:os...

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

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515 views

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r - Complement a DNA sequence

Suppose I have a DNA sequence. I want to get the complement of it. I used the following code but I am not getting it. What ... =="C") h[b]="G" } See Question&Answers more detail:os...

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

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905 views

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r - rolling regression by group in the tidyverse?

There are many questions about rolling regression in R, but here I am specifically looking for something ... confidence interval (tidyverse) See Question&Answers more detail:os...

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

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503 views

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r - faster way to compare rows in a data frame

Consider the data frame below. I want to compare each row with rows below and then take the rows that are ... sample_4 5 3 sample_2 sample_4 4 See Question&Answers more detail:os...

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

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526 views

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r - Replace blank cells with character

I'm working on a data set that looks as follow: 191 282 A 202 210 B I would like to replace those empty ... do this in R? Appreciate it. 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 do I time out a lapply when a list item fails or takes too long?

For several efforts I'm involved in at the moment, I am running large datasets with numerous parameter ... or tricks are 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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618 views

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r - sliderInput for date

I am making animation using animationOptions in sliderInput(). I want to use date/daterange in a slider, but sliderInput ... ("preImage") ) )) See Question&Answers more detail:os...

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

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549 views

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r - How to fill in the contour fully using stat_contour

I am looking for ways to fully fill in the contour generated by ggplot2's stat_contour. The current result is ... color or using geom_tile()? See Question&Answers more detail:os...

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

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608 views

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r - How do I overlay an image on to a ggplot?

I'd like to read an image from the web. e.g. http://api.altmetric.com/donut/502878_64x64.png and insert it into ... = 2) How would I 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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649 views

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r - How to reorder factor levels in a tidy way?

Hi I usually use some code like the following to reorder bars in ggplot or other types of plots. Normal plot ... geom_point(stat = "identity") See Question&Answers more detail:os...

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

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518 views

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r - How to read knitr/Rmd cache in interactive session?

I have an Rmd file with a lot of cached code chunks. Now I want to keep developing that script using an ... R session in any terminal emulator. See Question&Answers more detail:os...

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

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725 views

1 answer

r - Draw a trend line using ggplot

I used ggplot2 to draw a trend line based on my data. Below is something I've done using spreadsheet. But ... rather than single trend line? See Question&Answers more detail:os...

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

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1.2k views

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r - ggplot2 y axis label decimal precision

I am plotting several ggplot charts in a loop (i know, i know don't loop use plyr...but) and was ... () Any help would be 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 - Warning when defining factor: duplicated levels in factors are deprecated

I am having a little trouble with my radar chart in R. Even though the plot is fine I am getting the ... (values = cbPalette) + coord_radar() See Question&Answers more detail:os...

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

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432 views

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r - Test for NA and select values based on result

My question is rather simple. What I want is if A[i]!=NA, then C[i]=A[i], if A[i]=NA, then C[i]=B[i], ... NA 27 . NA NA . NA NA . NA NA . See Question&Answers more detail:os...

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

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632 views

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r - move axis labels ggplot

I have produced a fact graph in ggplot2 and the x axis title (bottom) is touching the scale values slightly (it's ... need it to move down. How? See Question&Answers more detail:os...

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

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757 views

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r - Shiny: Switching between reactive data sets with rhandsontable

In the below toy example I have two data sets df1 and df2. The data sets are output to an interactive table using ... ui = ui, server = server) See Question&Answers more detail:os...

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

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507 views

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r - Using predict to find values of non-linear model

I'm trying the next code to try to see if predict can help me to find the values of the dependent variable for ... stack What am I doing wrong? See Question&Answers more detail:os...

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

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495 views

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r - Saving a list of plots by their names()

Let's say I have a list of plots that I've created. library(ggplot2) plots <- list() plots$a <- ggplot(cars, ... saved as: a.jpeg b.jpeg c.jpeg See Question&Answers more detail:os...

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

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439 views

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r - Access data.table columns with strings

Apologies for a question that probably makes it obvious that I usually work in Python/pandas, but I'm ... column paste0(colname,colnumber). See Question&Answers more detail:os...

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

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648 views

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r - Model matrix with all pairwise interactions between columns

Let's say that I have a numeric data matrix with columns w, x, y, z and I also want to add in the ... a clean and effective 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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646 views

1 answer

r - plotting barchart in popup using leaflet library

Quick question all. I have some data in sql server which i have loaded into RStudio. I have made a barchart ... please. Hope someone can help See Question&Answers more detail:os...

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

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762 views

1 answer

r - How to change color of facet borders when using facet_grid

When using facet_grid, ggplot2 divides the major categories that make up the facet variables with a broader-than-usual ... to do that? 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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491 views

1 answer

r - Plotting multiple lines from a data frame with ggplot2

I am trying to plot multiple lines using ggplot2. My data is fitted into a data frame as follow: > rs ... 4 40915969945 20 1000 4 75217534464 See Question&Answers more detail:os...

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

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