Recent questions tagged R

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I am reasking this question: How to wrap text around plots in R Markdown?: 'Currently the default for R Markdown ... wrapping on the right).' See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Apply a function to each data frame

I have 4 data frames which contain a date column, a price column and a return column. data.1: Date Price ... help? Thanks in advance - Dani See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - dynamically adjust height and/or width of shiny-plotly output based on window size

I would like to have the shiny-plotly output height and width adjusted to the current window size. I have ... Smaller Window: Expanded Window: See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Create sections through a loop with knitr

See this reproducible example : --- title: "test" output: html_document --- ## foo ```{r} plot(1:3) ``` ## ... ) ``` And get the same output. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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363 views

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r - Regular analysis over irregular time series

I have an irregular time series (xts in R) that I want to apply some time-windowing to. For example, given a ... -09 2 Thanks for any guidance. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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434 views

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r - Inserting an image to ggplot outside the chart area

Is it possible to add an image to ggplot chart which will be outside chart area? I know it is possible to add ... (~ color, scales = "free_x") See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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292 views

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r - data.table inner/outer join with NA in join column of type double bug?

Following this wikipedia article SQL join I wanted to have a clear view on how we could have joins with data.table. ... Rob Cle 5: 34 Smi Cle See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Matching multiple columns on different data frames and getting other column as result

I got two big data frames, one (df1) has this structure chr init 1 12 25289552 2 3 180418785 3 3 ... to do using awk or something similar See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Put labels over negative and positive geom_bar

I'd like to visualize a data using bar chart and ggplot. I have the data below, when I want to vis this data the ... ,size =3.5 , angle = 90) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Relative positioning of geom_text in ggplot2?

I am using geom_text to annotate plots in gglot2 and I want use relative positioning rather than absolute. That ... extract those from a plot? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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449 views

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r - How do I get ggplot to order facets correctly?

I am trying to facet about 14 plots based on a variable that runs from 2-14. The plots show up in the order: 10 ... 8 9 How do I reorder those? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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326 views

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r - Select along one of n dimensions in array

I have an array in R, created by a function like this: A <- array(data=NA, dim=c(2,4,4), dimnames ... after the dimension I want to select. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Using expression(paste( to insert math notation into a legend

I wish to substitute the following (yes, I've written it here in TeX format, just to be clear) $P_{M1 ... would be very, very welcome. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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309 views

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r - Multiple histograms in ggplot2

Here is a short part of my data: dat <-structure(list(sex = structure(c(1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L ... is a much easier way to do this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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243 views

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r - Behavior of <- NULL on lists versus data.frames for removing data

Many R users eventually figure out lots of ways to remove elements from their data. One way is to use NULL, ... on trial-and-error for this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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457 views

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r - ggplot2 offset scatterplot points

I have two sets of points with error bars. I would like to offset the second so it's displayed slightly ... Y-axis is categorical variables. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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296 views

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r - Serious Memory Leak When Iteratively Parsing XML Files

Context When iterating over a set of Rdata files (each containing a character vector of HTML code) that are ... what's causing my problem. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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284 views

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r - Source only part of a file

My R workflow is usually such that I have a file open into which I type R commands, and I'd like to ... Is there another way of achieving this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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646 views

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r - Aggregate by factor levels, keeping other variables in the resulting data frame

I'm trying to calculate the minimum values of a numeric column for each level of a factor, while keeping values of ... 37.2 # 3 JL03 20.0 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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354 views

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r - How to exit a Shiny app and return a value

The help page for runApp says: Runs a Shiny application. This function normally does not return; interrupt R ... shiny package that does this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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517 views

1 answer

r - Adding legend to ggplot when lines were added manually

I have a plot in ggplot with 4 separate lines that I have added with a separate geom_line() argument. I would ... size=0.8, colour="darkgrey") See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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286 views

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r - Example Needed: Change the default print method of an object

I need a bit of help with jargon, and a short piece of example code. Different types of objects have a specific ... would I go about doing this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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444 views

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r - how to drop columns by passing variable name with dplyr?

I have a df as follows: a <- data_frame(keep=c("hello", "world"),drop = c("nice", "work")) a ... -(name) : invalid argument to unary operator See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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367 views

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r - detect non ascii characters in a string

How can I detect non-ascii characters in a vector of strings in a grep like fashion. For example below I' ... .output(tools::showNonASCII(x)) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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479 views

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r - Filter a vector of strings based on string matching

I have the following vector: X <- c("mama.log", "papa.log", "mimo.png", "mentor.log") How do I retrieve ... with "m" and ending with ".log"? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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352 views

1 answer

r - Get date difference in years (floating point)

I want to correct source activity based on the difference between reference and measurement date and source half life ( ... 5.2y, for example? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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529 views

1 answer

r - Navigate to particular sidebar menu item in ShinyDashboard?

(cross post from shiny google groups, https://groups.google.com/forum/#!topic/shiny-discuss/CvoABQQoZeE) ... greatly appreciated Thanks Iain See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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432 views

1 answer

r - How to show matrix values on Levelplot

I have a matrix data here, and I visualized it with levelplot. The Plot is placed below. But I just couldn't put ... How can I do that ? Thanks. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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