Recent questions tagged R

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r - Add Column of Predicted Values to Data Frame with dplyr

I have a data frame with a column of models and I am trying to add a column of predicted values to it. A ... it be done in a single step? 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 - Looking at internal Methods

I'd like to be able to see the function that's used when I use str(), as I'd like to modify it a bit for ... of the output for str()? Or can I? See Question&Answers more detail:os...

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

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486 views

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r - Error installing packages from github

I can't install packages from github: > install_github('cranvas', 'ggobi', args="--no-multiarch") Installing ... you ever faced this? 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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369 views

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r - How to assign your color scale on raw data in heatmap.2()

I have data that looks like this: Name h1 h2 h3 h4 h5 1 1420468_at_Asb17 0.000 2.328 0.000 0.000 0. ... uses the default z-score row scaling. See Question&Answers more detail:os...

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

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279 views

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r - How to prevent functions polluting global namespace?

My R project is getting increasingly complex, and I'm starting to look for some construct that's equivalent to ... a definite bonus for me. See Question&Answers more detail:os...

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

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563 views

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r - ggplot2 geom_density limits

How can I remove the lines at the end of the limits in calls to geom_density? Here is an example: library( ... one running along the x-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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726 views

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r - Convert xml_nodeset to data.frame

I am using rvest. And I would like to convert the result to a data frame: > links <- pgsession %>% ... doing wrong? I appreciate your replies! 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 - ggplot2: add p-values to the plot

I got this plot Using the code below library(dplyr) library(ggplot2) library(ggpmisc) df <- diamonds %>% dplyr:: ... significant when p < 0.005. 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 - geom_bar() + pictograms, how to?

(See bottom of post for updates) Initial post, 2014-07-29 11:43:38Z I saw this graphics on the Economist's ... ) This gives you this kinda plot 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 to suppress automatic table name and number in an .Rmd file using xtable or knitr::kable?

I'd like to name my tables from R scripts without the automatic Table 1:... prefix when using xtable() or knitr:: ... to work in an .Rmd file. See Question&Answers more detail:os...

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

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383 views

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r - Combine Voronoi polygons and maps

I would like to combine Voronoi polygons with map, in order to use this later for spatial analysis. I have ... created from voronoi polygons): See Question&Answers more detail:os...

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

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358 views

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r - Voronoi diagram polygons enclosed in geographic borders

I am trying to create Voronoi polygons (aka Dirichlet tessellations or Thiessen polygons) within a fixed geographic ... what I outlined above. 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 - Comparing two columns in a data frame across many rows

I have a data frame that I'm working with in which I'd like to compare a data point Genotype with two ... all except the last match SK1. 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 - increase iterations for new version of lmer?

I just updated lme4 to version 1.0-4 and when I run lmer() my mixed effects model, which was converging before, ... , data= data) Thanks a lot! 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 - ggplot2 error : Discrete value supplied to continuous scale

I have a dataset called "merged", which contains 3 numeric columns "pauseMedian" and "numTotalPauses" and "diff". I ... how can I make it work? 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 - Reshape wide format, to multi-column long format

I want to reshape a wide format dataset that has multiple tests which are measured at 3 time points: ... transforming to single column outcome. See Question&Answers more detail:os...

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

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362 views

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r - RStudio empty on startup - No windows, no menus, no rendering

When I start RStudio, none of the windows inside the main frame come up, and none of the menu options display menu ... 98.1062. How to fix 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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547 views

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r - Recode categorical factor with N categories into N binary columns

Original data frame: v1 = sample(letters[1:3], 10, replace=TRUE) v2 = sample(letters[1:3], 10, replace ... way to do this without using looping? See Question&Answers more detail:os...

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

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383 views

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r - Fastest way to subset - data.table vs. MySQL

I'm an R user, and I frequently find that I need to write functions that require subsetting large datasets ... much more intuition beyond that. See Question&Answers more detail:os...

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

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561 views

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r - format a Date column in a Data Frame

I've the following data from a data frame Name,JoiningDate,AmtPaid Joe,12/31/09,1000 Amy,10/28/09,100 ... date and then sort on JoiningDate? 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 - Using legend with stat_function in ggplot2

I am using scale_colour_manual to specify the possible keys in the legend. However, if I use stat_function to plot ... "orange")) print(plt) See Question&Answers more detail:os...

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

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593 views

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r - Matching timestamped data to closest time in another dataset. Properly vectorized? Faster way?

I have a timestamp in one data frame that I am trying to match to the closest timestamp in a second ... way of performing this operation? See Question&Answers more detail:os...

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

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584 views

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r - Dplyr - Mean for multiple columns

I want to calculate the mean for several columns, creating a new column, using dplyr and without melting + ... value where TRUE/FALSE needed See Question&Answers more detail:os...

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

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463 views

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r - Why is seq(x) so much slower than 1:length(x)?

I recently answered a question pertaining to for loops. Upon testing my code's speed, I noticed that the use of seq ... loop than 1:length(x) ? See Question&Answers more detail:os...

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

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523 views

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r - Scaling shiny plots to window height

I want to scale a shiny plot to the height of the window. This related SO question only uses absolute height ... ( plotOutput("myplot") ) ) See Question&Answers more detail:os...

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

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429 views

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r - how to convert date and time from character to datetime type

hi how shall i convert this to a datetime type object which preserves both the date and the time? DateTime= ... strptime and lubridate. 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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541 views

1 answer

r - Specify height and width of ggplot graph in Rmarkdown knitr output

I have created a plot with ggplot2 where the x-axis labels are not readable unless the plot is larger than ... plot of the desired size? See Question&Answers more detail:os...

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

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441 views

1 answer

r - How to assign output of cat to an object?

How would it be possible in the example below to skip the step of writing to file "test.txt", i.e. assign the cat-result ... 4 4 9 3 7 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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