Recent questions tagged R

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r - How do I manually change the key labels in a legend in ggplot2

I am preparing a plot for publication. I created a stacked box plot to show frequency of patients in each group ... it at the time of plotting. 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 - Calculating percentile of dataset column

A quick one for you, dearest R gurus: I'm doing an assignment and I've been asked, in this ... finding those "percentiles" of infert$age? 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 - Horizontal Barplot in ggplot2

I was working on doing a horizontal dot plot (?) in ggplot2, and it got me thinking about trying to ... a horizontal barplot in ggplot2? 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 - Fitting a curve to specific data

I have the following data in my thesis: 28 45 91 14 102 11 393 5 4492 1.77 I need to fit a curve ... and what initial parameters I can use? 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 faq - How can I read the source code for an R function?

I have a data frame and I want to learn how the summary generates it's information. Specifically, how does ... because it is in bytecode? 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 - Can `ddply` (or similar) do a sliding window?

Something like sliding = function(df, n, f) ldply(1:(nrow(df) - n + 1), function(k) f(df[k:(k ... the nice syntactic sugar that comes with it? 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 - Possible to create Rd help files for objects not in a package?

I am using Rstudio to streamline Sweave and R for data analyses that I will share with other analysts. In order to ... t a part of any package? 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 - How to solve prcomp.default(): cannot rescale a constant/zero column to unit variance

I have a data set of 9 samples (rows) with 51608 variables (columns) and I keep getting the error whenever I ... (or constant in another way). 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 - How to add shaded confidence intervals to line plot with specified values

I have a small table of summary data with the odds ratio, upper and lower confidence limits for four ... ! Any help greatly appreciated! 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 - Making plot functions with ggplot and aes_string

In Hadley Wickham's ggplot2 book in chapter 10.3, he alludes to making plot functions. I want to make ... how anyone approaches this 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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r - How to add a legend to hline?

I'd like to add a legend to hline plot. The head of my subset looks like this Site Date Al 1 Bo6 2014-10- ... 2 (75.5)= Geochemical atlas limit. 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 - Left-adjust title in ggplot2, or absolute position for ggtitle

I would like to left align the title in a plot like this ggplot(data = economics, aes(x = date, y = unemploy ... - and an error. Thank you! 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 - How to draw a nice arrow in ggplot2

I am creating a ggplot chart where I want to have some arrows between two points. The main task is easily ... some "beautiful" thick arrows? See Question&Answers more detail:os...

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

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401 views

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r - can I change the position of the strip label in ggplot from the top to the bottom?

I know this is not quite a data visualization issue, but the boss asked for it, so I need to figure out if it is possible. 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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r - aggregate 1-minute data into 5-minute average data

My question here is to aggregate the data collected at every 1-minute into 5-minute average. DeviceTime ... the past five minutes. 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 - How do I best simulate an arbitrary univariate random variate using its probability function?

In R, what's the best way to simulate an arbitrary univariate random variate if only its probability density function is available? 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 - Can you specify different geoms for different facets in a ggplot?

How do you specify different geoms for different facets in a ggplot? (Asked on behalf of @pacomet, who wanted to know.) 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 - Adding ellipses to a principal component analysis (PCA) plot

I am having trouble adding grouping variable ellipses on top of an individual site PCA factor plot which also includes PCA ... "5_9", "5_10")) 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 - How to trigger a data refresh in shiny?

I have a shiny application that queries data from SQL into data frames, and then those data frames are ... functionThatGetsData() }) }) 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 - Add margin row totals in dplyr chain

I would like to add overall summary rows while also calculating summaries by group using dplyr. I have found ... an easier/built-in solution? 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 - no visible global function definition for ‘median’

Since the latest R update I get the Note summary.xmlImport: no visible global function definition for median' in the ... : Ubuntu 14.04.2 LTS 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 - Adjust plot title (main) position

I have been unable to find a way to adjust the (vertical) distance between plot and main title in R using ... be more elegant for my purposes. 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 - how to get value when a variable name is passed as a string

i write this code in R paste("a","b","c") which returns the value "abc" Variable abc has a value of 5 ... . So please help me. Thanks in advance 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 - How can I divide one column of a data frame through another?

I wanted to divide one column by another to get the per person time how can I do this?I couldn't find anything on ... e.g 263808.0/1582 = 166.75 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 - simple examples of filter function, recursive option specifically

I am seeking some simple (i.e. - no maths notation, long-form reproducible code) examples for the filter function in R I ... ) [1] 1 3 7 15 30 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 - Positioning axes labels

How can I move the y axis label from the left to the right of the plot area and the x-axis label from below to ... ("blue", "red", "green")) See Question&Answers more detail:os...

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

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314 views

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r - sp::over() for point in polygon analysis

I have a shapefile named "ind_adm" and a SpatialPointsDataFrame called "pnts". The "pnts" contains points generated ... Where am I going wrong? See Question&Answers more detail:os...

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

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405 views

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r - dplyr - groupby on multiple columns using variable names

I am working with R Shiny for some exploratory data analysis. I have two checkbox inputs that contain only the ... names to dplyr's groupby? See Question&Answers more detail:os...

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

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