Recent questions tagged R

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r - How to make Shiny's input$var consumable for dplyr::summarise()

I have the following Rmarkdown Shiny: --- title: "My Title" runtime: shiny output: flexdashboard::flex_dashboard: ... 3928.864 3681.59 4906 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 - ggplot legend - scale_colour_manual not working

I am trying to add a legend to my graphs, but nothing ever shows up. This is the code I have: ... greatly appreciated! 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 - Tricks to override plot.factor?

I've been using plot for quite awhile now and I'm wondering how much would be broken if the type argument could ... ). It's in plot.default. 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 check if .csv-File has a comma or a semicolon as separator?

As the title already says: I have to read in a lot of .csv-Files automatically. Some have a comma as ... Sorry for my English 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 to select rows according to column value conditions

I have a data set which looks like the following (partially): id name dummy 1 Jane 1 1 Jane 0 1 ... Any suggestions would be really helpful! 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 - Subset data frame to include only levels of one factor that have values in both levels of another factor

I am working with a data frame that deals with numeric measurements. Some individuals have been measured several ... of another factor) 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 - Get names of column with max value for each row

i need your help, i have a data frame like this int x y z 1 0 1 0 2 1 0 0 3 0 0 1 and the ... save in a new data.frame, any suggestion? 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 - Too many factors on x axis

What's the best way to deal with too many factors in a plot, assuming that the factor variable is ordered? The ... aes(x=x)) + geom_histogram() 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 - mutate function is not updating

I have a tbl_df with several columns. I am running a simple mutate on it to update a column, but the column ... . That still did not work. 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 - ggplot2 scale_x_log10() destroys/doesn't apply for function plotted via stat_function()

I finally managed to plot my custom fitted function over my data in ggplot2 but when I log-transform the ... missing values (geom_path). 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 - knitr compile problems with RStudio (windows)

i have a knitr based Rnw file that is compiling to pdf perfectly fine in RStudio on mac (v0.97.316) ... -with-rstudio-windows?unresolve=true). 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't read an .RData fileInput

I want to import a .RData file with fileInput but It doesn't work, I have this error message : Error in my. ... a dataframe in my directory) ... 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 - Group by and conditionally count

I am still learning data management in R. I know I am really close, but can't get the precise syntax. I have ... (ST), function(x) nrow(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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467 views

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r - Colors lost in legend when using scale_shape_manual

I am trying to plot points using filled shapes from position 21 of the shapes. d <- data.frame(expand.grid(a= ... to get the legend as above? See Question&Answers more detail:os...

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

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276 views

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r - Convert Vector to Matrix without Recycling

When I convert a vector to a matrix that has too few elements to fill the matrix, then the elements of the vector are ... ,] 9 10 [6,] 11 NA See Question&Answers more detail:os...

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

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453 views

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r - Combining geom_point and geom_line with position_jitterdodge for two grouping factors

I've tried several suggestions based on several posts on here, as well as reading through the ggplot2 ... would be 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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291 views

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r - Merging data.tables uses more than 10 GB RAM

I have two data.tables: DT and meta. When I merge them using DT[meta], memory usage increases by more than 10 ... -6 svMisc_0.9-65 tools_2.15.1 See Question&Answers more detail:os...

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

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402 views

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r - How do I split a data frame among columns, say at every nth column?

Let's say I am working with the following data frame: Mydata <- data.frame(X1 = c(1,2,3,4,5,6,7 ... this pattern for any number of columns? See Question&Answers more detail:os...

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

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439 views

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r - Multiple y axis for bar plot and line graph using ggplot

I have some transpiration data from an experiment that I would like to show as a time series on a line graph ... same ggplot line graph???? See Question&Answers more detail:os...

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

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318 views

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r - How to retrieve the client's current time and time zone when using Shiny?

I'm wondering if there is some clever way of getting the clients current time and time zone in order to use ... the easiest way of 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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556 views

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r - Force facet_wrap to fill bottom row (and leave any "gaps" in the top row)

I'd like to force facet_wrap to fill from the top-left, but in such a way as to always fully fill the bottom ... default. How can I 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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303 views

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r - Shiny Slider Customized Values

I am trying to set custom values for shiny slider (1,5,10,15,20,25 and 30). I tried step but then the ... shinyApp(ui = ui, server = server) 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 calculate row means in a data frame?

I have a dataframe with 1000 columns and 8 rows, I need to calculate row means.I tried this loop: final ... not numeric or logical: returning NA See Question&Answers more detail:os...

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

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391 views

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r - Multiply each element in a vector by itself to create a matrix

I'm trying to multiply each element in a vector by itself such that it produces a matrix that is symmetric ... be greatly appreciated. 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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483 views

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r - How to convert decimal date format (e.g. 2011.580) to normal date format?

I'm trying to change from the decimal date format (return type of cpts.ts() from the changepoint package) to ... . Can anybody help me? 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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262 views

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r - Get expression that evaluated to dot in function called by `magrittr` pipe

I have a function x_expression() which prints the expression passed to argument x. pacman::p_load(magrittr, rlang) ... author of that answer. See Question&Answers more detail:os...

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

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393 views

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r - Why does subsetting a column from a data frame vs. a tibble give different results

This is a 'why' question and not a 'How to' question. I have a tibble as a result of an aggregation ... output differs. I'm wondering why? See Question&Answers more detail:os...

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

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700 views

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r - Find most frequent combination of values in a data.frame

I would like to find the most frequent combination of values in a data.frame. Here's some example data: ... the 30000 observations? Many 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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