Recent questions tagged R

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r - Specifying the colour scale for maps in ggplot

Having difficulty setting the colour scales for maps in ggplot. I need greyscale. Very grateful for an idea ... ) map + scale_colour_grey() See Question&Answers more detail:os...

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

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969 views

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r - Align axis label on the right with ggplot2

Consider the following d = data.frame(y=rnorm(120), x=rep(c("bar", "long category name", "foo"), each ... label would end right below the graph? 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 - Assign names to vector entries without assigning the vector a variable name?

In R, is it possible to assign names to components of a vector without first assigning that vector to a ... that on two different lines. 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 set axis ranges in ggplot2 when using a log scale?

I have a time series of data where the measurements are all integers between 1e6 and 1e8: website hits per month. ... a log scale in ggplot2? 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 - "Error: Continuous value supplied to discrete scale" in default data set example mtcars and ggplot2

I am trying to replicate the example here (sthda.com) using the following code: # Change point shapes and colors ... I would be very grateful. See Question&Answers more detail:os...

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

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461 views

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r - access data frame column using variable

Consider the following code a = "col1" b = "col2" d = data.frame(a=c(1,2,3),b=c(4,5,6)) This code ... is a variable and not a name of a column? 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 - Chain arithmetic operators in dplyr with %>% pipe

I would like to understand why, in the the dplyr or magrittr package, and more specifically the chaining function ... in other SO questions. See Question&Answers more detail:os...

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

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566 views

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r - Assigning and removing objects in a loop: eval(parse(paste(

I am looking to assign objects in a loop. I've read that some form of eval(parse( is what I need to perform ... way to assign objects in a loop? 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 - Visualising and rotating a matrix

I am trying to visualise an upper triangular matrix that is approximately 500x500. Alongside this I am also trying ... know a better solution? 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 - pivot_wider, count number of occurrences

Simple question. I'd like to use pivot_wider on a dataset to count the number of occurrences of each category: Here ... sense to me). 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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466 views

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r - Transfer data from database to Spark using sparklyr

I have some data in a database, and I want to work with it in Spark, using sparklyr. I can use a DBI-based ... how to use it in this context. 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 - Programming with ggplot2 and dplyr

I want to combine dplyr and ggplot within one function using piping and struggling with some issues now. Here is ... cyl) Using ggplot2_2.2.1 See Question&Answers more detail:os...

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

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542 views

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r - Closing the lines in a ggplot2 radar / spider chart

I need a flexible way to make radar / spider charts in ggplot2. From solutions I've found on github and ... about closing the lines? /Fredrik See Question&Answers more detail:os...

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

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482 views

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r - List of plots using lapply

I have been using lapply and sapply as my go-to functions recently. So far so good, but why the following code ... I run this through my 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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515 views

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r - Annual, monthly or daily mean for irregular time series

I am a new user of "R", and I couldn't find a good solution to solve it. I got a timeseries in the ... hesitate to tell me if it's not. See Question&Answers more detail:os...

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

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430 views

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r - How to use a character as attribute of a function

I want to run a multiple comparisons analysis for the different variables of a model. My idea is as follows: ... . Anyone knows a solution? See Question&Answers more detail:os...

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

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449 views

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r - Get name of x when defining `(<-` operator

I want to define (<- and access the name of the left hand side argument : *<- functions use internally an ... temp* and x are all different. See Question&Answers more detail:os...

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

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470 views

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r - knitr: how to use child .Rnw docs with (relative) figure paths?

I have a parent and a child Rnw document. The child doc is located in the subfolder children, i.e. +-- ... of the child AND the parent doc? See Question&Answers more detail:os...

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

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425 views

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r - How to convert an portion of an XML into a data frame? (properly)

I am trying to extract information from an XML file from ClinicalTrials.gov. The file is organized in the ... for example, you could generate See Question&Answers more detail:os...

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

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414 views

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r - Naive Bayes in Quanteda vs caret: wildly different results

I'm trying to use the packages quanteda and caret together to classify text based on a trained sample. As a test ... better. Yet also only 53%. See Question&Answers more detail:os...

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

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875 views

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r - Delete row of DT data table in Shiny app

I have a shiny app that displays data frame data in a DT table. In the app I have a button that I when ... selected row from the the data frame? See Question&Answers more detail:os...

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

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578 views

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r - Oauth authentification to Fitbit using httr

I'm trying to connect to the fitbit api using the httr library. Using the examples provided, I came up with ... about what the problem might be? See Question&Answers more detail:os...

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

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372 views

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r - S4 object with a pointer to a C struct

I have a third-party C library I am using to write an R extension. I am required to create a few structs ... would be the type of the slot? See Question&Answers more detail:os...

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

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436 views

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r - Create link to the other part of the Shiny app

I wonder if it is possible to create a link to other part of Shiny app. I mean, I have one page report with ... border = 'white') }) }) See Question&Answers more detail:os...

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

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392 views

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r - Reproduce a 'The Economist' chart with dual axis

I was trying to replicate this chart from The Economist (the one on the left). The chart plots the number of ... ), and here's the 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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550 views

1 answer

r - How to make discrete gradient color bar with geom_contour_filled?

I plot a map based on a piece of code like this: ggplot(faithfuld, aes(y=eruptions, x=waiting, z=100* ... of text: Are there any solutions? See Question&Answers more detail:os...

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

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382 views

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r - object.size() reports smaller size than .Rdata file

I have tried to figure out actual memory requirements for storing particular object. I tried two methods: object.size( ... class")= chr "rjags" See Question&Answers more detail:os...

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

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492 views

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r - Setting default number of decimal places for printing

I am running code to produce outputs where I want all the outputs to be printed with 1 decimal place. However ... . How to set this generally? See Question&Answers more detail:os...

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

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