Recent questions tagged R

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r - Date format in hover for ggplot2 and plotly

I have a question about date formats in plotly. I made a time series plot in ggplot2 that I'm trying to visualize ... 294, class = "data.frame") See Question&Answers more detail:os...

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

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628 views

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r - Date format for plotting x axis ticks of time series data

The data files have date is the format i.e. 1975M1, 1975M2, ... 2011M12 for time series data. when ... methods of customizing tick 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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r - ggplot2 - Shade area above line

I have some data that is constrained below a 1:1 line. I would to demonstrate this on a plot by ... m implementing the argument incorrectly... See Question&Answers more detail:os...

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

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560 views

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r - Using dplyr for frequency counts of interactions, must include zero counts

My question involves writing code using the dplyr package in R I have a relatively large dataframe (approx ... Any suggestions much appreciated! See Question&Answers more detail:os...

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

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355 views

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r - raster package taking all hard drive

I am processing a time series of rasters (modis ndvi imagery) to calculate average and st.deviation of the ... will be much welcome. 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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427 views

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r - for each group summarise means for all variables in dataframe (ddply? split?)

A week ago I would have done this manually: subset dataframe by group to new dataframes. For each dataframe ... to numerics as done 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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414 views

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r - Data frame to word table?

Is there a way to easily turn a data frame into a Word table via rmarkdown? If I use rmarkdown in RStudio to create ... ? ```{r} name_of_df ``` 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 - Conditionally display block of markdown text using knitr

I would like to edit a single rmarkdown (Rmd) document with a list of "problems", each followed by its ... my document into so many pieces. 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 display a busy indicator in a shiny app?

Note : I have read almost all the discussions on this object in shiny googlegroups and here in SO. I need an ... but on top of the tabset) 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 - dplyr 'rename' standard evaluation function not working as expected?

UPDATE: From comment below on this post, this is now working as expected, without the issues I laid out here. Below is a toy ... # # a b # 1 1 1 See Question&Answers more detail:os...

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

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330 views

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r - Dataframes in a list; adding a new variable with name of dataframe

I have a list of dataframes which I eventually want to merge while maintaining a record of their original ... (mylist) Thanks everyone. See Question&Answers more detail:os...

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

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355 views

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r - subset rows with (1) ALL and (2) ANY columns larger than a specific value

I have a data frame with an id column and some (potentially many) columns with values, here 'v1', 'v2': df <- data. ... 4 4 12 17 # 5 5 7 11 See Question&Answers more detail:os...

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

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296 views

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r - insert portions of a markdown document inside another markdown document using knitr

I know this can be done with php and other languages, but was wondering whether the following could be accomplished ... heading 2 and its 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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310 views

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r - How to display (advanced) customed popups for leaflet in Shiny?

I am using R shiny to build web applications, and some of them are leveraging the great leaflet features. ... change my github examples! Regards See Question&Answers more detail:os...

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

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387 views

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r - STL decomposition of time series with missing values for anomaly detection

I am trying to detect anomalous values in a time series of climatic data with some missing observations. ... ...) relevant information. See Question&Answers more detail:os...

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

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526 views

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r - Error: zipping up workbook failed when trying to write.xlsx

I was trying to write a xlsx file with write.xlsx and I get this error: Error: zipping up workbook failed. ... get that error after write.xlsx See Question&Answers more detail:os...

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

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396 views

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r - findInterval() with right-closed intervals

The great findInterval() function in R uses left-closed sub-intervals in its vec argument, as shown in its ... and has a different meaning.) See Question&Answers more detail:os...

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

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416 views

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r - Why is using dplyr pipe (%>%) slower than an equivalent non-pipe expression, for high-cardinality group-by?

I thought that generally speaking using %>% wouldn't have a noticeable effect on speed. But in this case it ... .55218 111.90049 162.7763 100 See Question&Answers more detail:os...

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

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354 views

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r - What's the difference between Reactive Value and Reactive Expression?

In Shiny tutorial, there is an example: fib <- function(n) ifelse(n<3, 1, fib(n-1)+fib(n-2)) shinyServer( ... renderText({ 1 / currentFib }) }) See Question&Answers more detail:os...

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

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411 views

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r - Select columns of data.table based on regex

How can I select columns of a data.table based on a regex? Consider a simple example as follows: library(data ... () but only by reference. See Question&Answers more detail:os...

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

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545 views

1 answer

r - Control alignment of two side-by-side plots in knitr

I cannot figure out how to arrange two side-by-side plots as explained in the knitr graphics manual page 2 (http:// ... :4) barplot(4:7) ``` 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 - How to select rows from data.frame with 2 conditions

I have an aggregated table: > aggdata[1:4,] Group.1 Group.2 x 1 4 0.05 0.9214660 2 6 0.05 0 ... even easier and giving this result I appreciate! See Question&Answers more detail:os...

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

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348 views

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r faq - View the source of an R package

Is there an easy way to view the source of an R package (or a method in a package), from within the interactive environment? See Question&Answers more detail:os...

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

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493 views

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r - updating column in one dataframe with value from another dataframe based on matching values

I have a data frame "z" letter color 1 a 0 2 e 0 3 b 0 4 b 0 5 d 0 6 d 0 7 a 0 8 b 0 9 c 0 10 ... (cbind(y1,y2)) names(y)=c("letter","color") y See Question&Answers more detail:os...

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

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694 views

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r - Get Selected Row From DataTable in Shiny App

I want to modify this application: https://demo.shinyapps.io/029-row-selection/ so that only one row can be ... anyone know how to do this? See Question&Answers more detail:os...

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

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390 views

1 answer

r - Copying and modifying a default theme

I would like to create a new theme for ggplot that is based on theme_bw(). I imagine the following steps are necessary ... 3.4.1, ggplot2_2.2.1 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

1 answer

r - Grid line consistent with ticks on axis

I am embarrassed to ask this simple question, but has been in kicking my mind for several days whenever I ... changes. See the following 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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521 views

1 answer

r - What's the difference between hex code (x) and unicode (u) chars?

From ?Quotes: xnn character with given hex code (1 or 2 hex digits) unnnn Unicode character with given ... between these two character forms? See Question&Answers more detail:os...

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

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