Recent questions tagged R

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r - ggplot2 time series plotting: how to omit periods when there is no data points?

I have a time series with multiple days of data. In between each day there's one period with no data points. How can ... aes(x=Time, y=Value)) g See Question&Answers more detail:os...

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

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409 views

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r - aggregating multiple columns in data.table

I have the following sample data.table: dtb <- data.table(a=sample(1:100,100), b=sample(1:100,100), id ... all of them in the function name See Question&Answers more detail:os...

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

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749 views

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r - dplyr filter() with SQL-like %wildcard%

Suppose I have the following data: foo <- data.frame(Company = c("company1", "foo", "test", "food"), ... table package. 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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692 views

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r - Parse Error: "Trailing Garbage" while trying to parse JSON column in data frame

I have a log file that look like this. This is a text document that looks like: Id,Date,Level,Message 35054, ... rid of the "trailing garbage"? See Question&Answers more detail:os...

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

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503 views

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r - Is it possible to jitter two ggplot geoms in the same way?

Using position_jitter creates random jitter to prevent overplotting of data points. In the below I have used the ... also add the lines? 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

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r - Rename list items

I have the following list listaValores listaValores <- c() for(valores in 1:numRepeticion){ listaValores <- c( ... to 2014, 2015, 2016? 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 remove time-field string from a date-as-character variable?

Suppose I have a variable like this c<-c("9/21/2011 0:00:00", "9/25/2011 0:00:00", "10/2/2011 0:00:00", " ... 10/2/2011" "9/28/2011" "9/27/2011" See Question&Answers more detail:os...

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

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442 views

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r - ggplot2 error "no layers in plot"

I have seen the question already asked... and solved adding stat = "identity" to geom_bar. But in my case, ... StationNAME)) d + geom_line() d 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 - Have lubridate subtraction return only a numeric value

I have one variable called Started which is the date on which human subjects enrolled in a study and another ... the numeric value of months? See Question&Answers more detail:os...

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

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681 views

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r markdown - format text in code chunk with new lines

Question Within a code chunk in an R Markdown (.Rmd) document how do you parse a string containing new line ... here in the R Studio gallery See Question&Answers more detail:os...

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

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474 views

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r - Mean by factor by level

Maybe this is simple but I can't find answer on web. I have problem with mean calculation by factors by level ... Thank you in advance for 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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776 views

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r - ggplot2 each group consists of only one observation

I am trying to plot the graph using ggplot2 So I have the following dataframe: iter se perf name 1 V1 0. ... Any ideas how to connect them? See Question&Answers more detail:os...

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

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417 views

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r - Align plots next to each other with knitr

I've been been using knitr for a couple of days now, it's great! :) At the moment I'm struggling to align ... be great to write next to 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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348 views

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r - Faster way to find the first TRUE value in a vector

In one function I very often need to use code like: which(x==1)[1] which(x>1)[1] x[x>10][1] ... -loop is slower than the options provided 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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507 views

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r - Formatting number output of sliderInput in shiny

A good example of my question is found in the Movie Review example in the Shiny Gallery here: http://shiny ... out, something that seems simple. See Question&Answers more detail:os...

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

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695 views

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r - Display an axis value in millions in ggplot

I have a chart where I am charting some very large numbers, in the millions. My audience is unlikely to ... individual data points as well. See Question&Answers more detail:os...

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

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620 views

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r - locator equivalent in ggplot2 (for maps)

Note: This question is specific for mapping but I'd like to be able to use it when I plot in ... ggmap package now contains this functionality. See Question&Answers more detail:os...

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

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425 views

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r - Changing tick intervals when x axis values are dates

Apologies if this is easy to solve, but I can't get my head around it. I have this data frame: ... Any assistance would be greatly 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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316 views

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r - %>% key binding / keyboard shortcut in Rstudio

I've been experimenting quite a bit with the increasingly popular %>% operator from the magrittr package. I've ... ://github.com/rstudio/rstudio See Question&Answers more detail:os...

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

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455 views

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r - How to skip error checking at Rmarkdown compiling?

I was writing an Rmarkdown document (compile to HTML) in RStudio, and there are some code chunks that ... in the knitted HTML document? See Question&Answers more detail:os...

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

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832 views

1 answer

r - Setting Midpoint for continuous diverging color scale on a heatmap

I need to adjust the midpoint location for a heatmap via ggplot2. I've googled around and have seen ... midpoint range as the first? See Question&Answers more detail:os...

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

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388 views

1 answer

r - Stacked histograms like in flow cytometry

I'm trying to use ggplot or base R to produce something like the following: I know how to do histograms with ... like the y-axes to overlap. See Question&Answers more detail:os...

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

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650 views

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r - observeEvent Shiny function used in a module does not work

I'm developing an app in which I use modules to display different tab's ui content. However it seems like the ... ui = ui, server = server) See Question&Answers more detail:os...

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

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462 views

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r - Create polygon from set of points distributed

I need help on the R language from my code: inter1= read.table("C:/inter.csv", header=TRUE) inter1$xx< ... 24 6.5 19 32.6567036402505 See Question&Answers more detail:os...

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

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284 views

1 answer

r - Grouping with custom geom fails - how to inspect internal object from draw_panel()

This is a question related to a custom geom which is modified from this answer. The given geom failed with grouping, so 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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451 views

1 answer

r - Plotting continuous and discrete series in ggplot with facet

I have data that plots over time with four different variables. I would like to combine them in one plot using ... order as the sub-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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1.2k views

1 answer

r - Add dynamic tabs in shiny dashboard using conditional panel

I would like to have dynamic tabs for my shiny app. I tried the below code ## app.R ## library(shiny) ... supposed to show the second tab. See Question&Answers more detail:os...

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

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595 views

1 answer

r - Multiple filled.contour plots in one graph using with par(mfrow=c())

I am trying to construct a graph consisting of 2-3 filled.contour plots next to each other. The color scale is ... it is natively in R possible. See Question&Answers more detail:os...

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

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