Recent questions tagged R

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r - How to write a test for a ggplot plot

I have a lot of functions that generate plots, typically with ggplot2. Right now, I'm generating the plot and ... 's a more direct approach? 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 - Difference between subset and filter from dplyr

It seems to me that subset and filter (from dplyr) are having the same result. But my question is: is there at some ... 00 64.51 84.00 168.00 14 See Question&Answers more detail:os...

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

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335 views

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r - ggplot2: multiple plots with different variables in a single row, single grouping legend

While there are some topics going in the same general direction, I haven't found any that would deal with ... with that package/issue. 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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290 views

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r - Finding a curve to match data

I'm looking for a non-linear curve fitting routine (probably most likely to be found in R or Python, ... an approximation is sometimes faster. See Question&Answers more detail:os...

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

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306 views

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r - Simulating a Random Walk

Xn can take values of -1 or 1 each with a probability of 0.5. And Sn= Sn-1 + Xn How can I compute the partial ... 1] } list(x=x) } Please 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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345 views

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r - Aggregating sub totals and grand totals with data.table

I've got a data.table in R: library(data.table) set.seed(1) DT = data.table( group=sample(letters[1:2 ... already have in the data.table format. See Question&Answers more detail:os...

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

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803 views

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r - Save leaflet map in Shiny

I have created a leaflet map in a Shiny application. Now I need a download button, so that the user can ... mainPanel(leafletOutput("map")) ) See Question&Answers more detail:os...

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

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397 views

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r - Non-linear color distribution over the range of values in a geom_raster

I'm faced with the following problem: a few extreme values are dominating the colorscale of my geom_raster plot ... this problem using 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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364 views

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r - Duplicate a column in data frame and rename it to another column name

I have a data frame like sample below. I would like to duplicat a column in the data frame and rename to another ... can I do it? Thank you. See Question&Answers more detail:os...

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

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708 views

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r - Replace two dots in a string with gsub

I'm trying to use the following code to replace two dots for only one: test<-"test..1" gsub("\..", "." ... no success. 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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532 views

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r - Getting a map with points, using ggmap and ggplot2

I want a map with points (and other geom_* layers) on it. I get the map, but instead of the points all I ... a map with points over it? 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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251 views

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r - How to delete a row from a data.frame without losing the attributes

for starters: I searched for hours on this problem by now - so if the answer should be trivial, please forgive me ... out with a hint. 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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465 views

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r - Differences between %.% (dplyr) and %>% (magrittr)

The dplyr package introduced the %.% operator to pass the left hand side as an argument of the function ... in the documentation itself. See Question&Answers more detail:os...

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

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403 views

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r - quick/elegant way to construct mean/variance summary table

I can achieve this task, but I feel like there must be a "best" (slickest, most compact, clearest-code, ... ~. to someone could be tricky! See Question&Answers more detail:os...

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

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380 views

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r - Shiny Chart Space Allocation

The example below plots 4 groups in 4 panes together. But the problem is that they seem to be residing in a single ... = 1000, width = 1000) }) See Question&Answers more detail:os...

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

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394 views

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r - data.table merge by multiple columns

I'm trying to match 4 variables pairwise and add a column with the lookup value. In base, I would do merge ... with alpha. But without success. See Question&Answers more detail:os...

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

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651 views

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r - Is there a way to knitr markdown straight out of your workspace using RStudio?

I wonder whether I can use knitr markdown to just create a report on the fly with objects stemming from my ... some output while still working. See Question&Answers more detail:os...

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

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424 views

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r - How to increase size of the points in ggplot2, similar to cex in base plots?

I have the following dummy code: dt<-data.frame(country=letters[1:20],val=rnorm(20),siz=rnorm(20)) qplot( ... parameter, like cex in base plots? See Question&Answers more detail:os...

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

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468 views

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r - Using dplyr to conditionally replace values in a column

I have an example data set with a column that reads somewhat like this: Candy Sanitizer Candy Water Cake Candy ... based solution. Thank you! See Question&Answers more detail:os...

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

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347 views

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r - remove row with nan value

let's say, for example, i have this data: data <- c(1,2,3,4,5,6,NaN,5,9,NaN,23,9) attr(data, ... . Can anybody point me in the right direction? See Question&Answers more detail:os...

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

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331 views

1 answer

r - Passing arguments to iterated function through apply

I have a function like this dummy-one: FUN <- function(x, parameter){ if (parameter == 1){ z <- DO SOMETHING ... "x" as the current row/col? ` See Question&Answers more detail:os...

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

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664 views

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r - defining minimum point size in ggplot2 - geom_point

Let's say I have a lot of values around 0,1 and a few around 10. I have mapped them i.e ... is possible with scale_colour_gradient for example). See Question&Answers more detail:os...

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

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713 views

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r - Closest equivalent of a factor variable in Python Pandas

What is the closest equivalent to an R Factor variable in Python pandas? See Question&Answers more detail:os...

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

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494 views

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r - Force no default selection in selectInput()

The Shiny documentation mentions that for selectInput(): selected The value (or, if none was supplied, the title) of ... , multiple = TRUE ) }) See Question&Answers more detail:os...

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

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410 views

1 answer

r - How to stop emacs from replacing underbar with <- in ess-mode

ess-mode is "Emacs speaks statistics." This mode is useful for editing programs for R or Splus (two separate ... 1 ess-mode release (unknown) See Question&Answers more detail:os...

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

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687 views

1 answer

r - Force ggplot2 scatter plot to be square shaped

I can force ggplot2 scatter plot to be square shaped with the same x and y scaling using xlim() and ylim(), ... equal length of x and y axis. See Question&Answers more detail:os...

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

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508 views

1 answer

r - How can I remove the legend title in ggplot2?

I have a question concerning the legend in ggplot2. Say I have a hypothetical dataset about mean carrot length for ... from the legend? 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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431 views

1 answer

r - Error: could not find function "unit"

While trying to modify theme settings this simple code gives the following error: library(ggplot2) theme_nogrid < ... to the problem. See Question&Answers more detail:os...

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

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