Recent questions tagged R

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r - Find K nearest neighbors, starting from a distance matrix

I'm looking for a well-optimized function that accepts an n X n distance matrix and returns an n X k ... values rather than the desired indices. See Question&Answers more detail:os...

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

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411 views

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r - Fill missing dates by group

In my data, there exist observations for some IDs in some months and not for others, e.g. dat <- data.frame(c ... , but am open to any approach. See Question&Answers more detail:os...

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

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234 views

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r - Reordering factor gives different results, depending on which packages are loaded

I wanted to create a barplot in which the bars were ordered by height rather than alphabetically by category. This ... 6 [13] tools_2.15.0 See Question&Answers more detail:os...

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

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346 views

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r - sum cells of certain columns for each row

I would like to calculate sums for certain columns and then apply this summation for every row. Unfortunately, I can ... that now for each row? See Question&Answers more detail:os...

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

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470 views

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r - Specifying column names in a data.frame changes spaces to "."

Let's say I have a data.frame, like so: x <- c(1:10,1:10,1:10,1:10,1:10,1:10,1:10,1:10,1:10,1: ... name? ie, "Label 1" instead of "Label.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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272 views

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r - Removing the border of legend symbol

I was trying to plot some predicted vs. actual data, something that resembles the following: # Some random data x ... the rest of my plot? 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 - How to select last N observation from each group in dplyr dataframe?

Given a dataframe: df <- structure(list(a = c(1, 1, 1, 2, 2, 2, 3, 3, 4, 4), b = c(34, 343 ... in order(order_by)[[n]] : subscript out of bounds See Question&Answers more detail:os...

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

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266 views

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r - How to force specific order of the variables on the X axis?

My question has to do with order of plot bars when using ggplot. EffectNames = c("Pull Back(A)","Hook(B)","Peg ... vjust=1.5, colour="white") p See Question&Answers more detail:os...

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

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748 views

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r - ggplot2 shade area under density curve by group

I have this dataframe: set.seed(1) x <- c(rnorm(50, mean = 1), rnorm(50, mean = 3)) y <- c(rep(" ... to shade the area under a curve by group. See Question&Answers more detail:os...

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

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554 views

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r - Merge rows in a dataframe where the rows are disjoint and contain NAs

I have a dataframe that has two rows: | code | name | v1 | v2 | v3 | v4 | |------|-------|--- ... "345" in "346", would that make things easier? See Question&Answers more detail:os...

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

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411 views

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r - geom_boxplot with precomputed values

In the past, I have been able to create boxplots using ggplot2 by providing the lower whisker, lower quantile, ... has been changed 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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501 views

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r - pass function arguments to both dplyr and ggplot

I'm confused about how to pass function argument into dplyr and ggplot codes. I'm using the newest version ... argument. 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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417 views

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r - combine rows in data frame containing NA to make complete row

I know this is a duplicate Q but I can't seem to find the post again Using the following data df <- ... works with characters as well. 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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400 views

1 answer

r - struggling with integers (maximum integer size)

I was using a function that requires input as integers. So I have been trying to read up on making things ... notation and get my integers? See Question&Answers more detail:os...

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

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718 views

1 answer

r - How to plot a Stacked and grouped bar chart in ggplot?

I have a data frame like below: id month type count ___ _______ ______ ______ 1 1 1 10 1 1 2 09 ... my expectation.Any help is 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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641 views

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r - ggplot2: How to specify multiple fill colors for points that are connected by lines of different colors

I am new to ggplot2. I would like to create a line plot that has points on them where the points are ... me to the right direction. 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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556 views

1 answer

r - Formatting reactive data.frames in Shiny

I have a working shiny application, but I am changing it so that the input data is reactive - it will ... but these made no difference. 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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354 views

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r - Calculate row-wise maximum

I would like to create a new column, which equals to the maximum value of all columns of that row. Here is an example: ... 3.9 1.7 0.4 5.4 See Question&Answers more detail:os...

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

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457 views

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r - Identify all objects of given class for further processing

Assume you are working with a large working environment and you aren't great about keeping up with your environment ... . lapply(outList, plot) See Question&Answers more detail:os...

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

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338 views

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r - Subsetting a data frame based on contents of another data frame

I have two data.frames. For examples sake let's say they look like this: df1 <- data.frame(x=rep( ... need equally sized data.frames. Thoughts? See Question&Answers more detail:os...

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

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269 views

1 answer

r - How to avoid: read.table truncates numeric values beginning with 0

I want to import a table (.txt file) in R with read.table(). One column in my table is an ID with nine ... me a hint how to solve the 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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528 views

1 answer

r - Select only the first row when merging data frames with multiple matches

I have two data frames, "data" and "scores", and want to merge them on the "id" column: data = data. ... from the right table. Any suggestions? See Question&Answers more detail:os...

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

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380 views

1 answer

r - Setting absolute size of facets in ggplot2

I'm creating several facetted plots for a report. The number of facets varies between 2 and 8. Ideally, I'd ... x=value)) + facet_wrap(~group) See Question&Answers more detail:os...

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

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351 views

1 answer

r - Shiny app: downloadHandler does not produce a file

I can't figure out what's going on - everything seems to work but my app does not generate a file - although it ... file,row.names=F) } ) }) See Question&Answers more detail:os...

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

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380 views

1 answer

r - Create zip file: error running command " " had status 127

I am trying to create a zip file from multiple files using the zip function in r, but I keep getting this error ... 'dt1.txt', 'dt2.txt')) See Question&Answers more detail:os...

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

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526 views

1 answer

r - Add a CSS class to single code chunks in RMarkdown

Is it possible to add a CSS class to a certain code chunk? Assume the following file: --- title: ... interested in a straight forward 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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312 views

1 answer

r - Can I get.seed() somehow?

In reference to the statement set.seed(), can I get the seed instead after running some code if I didn't set it ... I don't know how that helps. See Question&Answers more detail:os...

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

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377 views

1 answer

r - get_map not passing the API key (HTTP status was '403 Forbidden')

I have been facing this issue in the get_map() function (ggmap library) in R. My code was running without ... HTTP status was '403 Forbidden' See Question&Answers more detail:os...

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

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