Recent questions tagged R

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530 views

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r - Matching a sequence in a larger vector

I'd like to have a function which returns the initial indicies of matching subsequences of a vector. For example: y < ... (which(out)) } } } See Question&Answers more detail:os...

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

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593 views

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r - Remove space between bars ggplot2

This is my code ggplot(df, aes(x=timepoint, y=mean, fill=group)) + geom_bar(position=position_dodge(.3), ... 0.08348542 1.000000000 1.0000000 See Question&Answers more detail:os...

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

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682 views

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r - Remove duplicates based on 2nd column condition

I am trying to remove duplicate rows from a data frame based on the max value on a different column So, for the ... for subset(df, df$id=="a") See Question&Answers more detail:os...

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

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619 views

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r - Display row names in a data.table object

Reference: While trying to answer this very basic question, I suddenly realized that I wasn't able to ... # <pointer: 0x0000000000200788> See Question&Answers more detail:os...

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

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647 views

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r - Transpose a List of Lists

I have a list which contains list entries, and I need to transpose the structure. The original structure is ... idiomatic 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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746 views

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r - Why I get this error writing data to a file

I have this code myvector <- c(3.45235, 1.32525, ... , 2.41351) # some numbers write(myvector, "C: ... C:/mypath/myfile.txt' : Permission denied See Question&Answers more detail:os...

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

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668 views

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r - Convert integer as "20160119" to different columns of "day" "year" "month"

How can I convert a column of integers as dates: DATE PRCP 1: 19490101 25 2: 19490102 5 3: 19490118 18 4 ... like this: days month years PRCP See Question&Answers more detail:os...

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

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555 views

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r - Replicate each row of data.frame and specify the number of replications for each row?

I am programming in R and I got the following problem: I have a data String jb, that is quite long. ... the internet. Thanks for your help! See Question&Answers more detail:os...

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

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538 views

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r - Maps, ggplot2, fill by state is missing certain areas on the map

I am working with maps and ggplot2 to visualize the number of certain crimes in each state for different years ... those ugly missing spots? See Question&Answers more detail:os...

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

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468 views

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r - What type of graph is this? And can it be created using ggplot2?

I have this chart that I'm attempting to replicate. It has two continuous variables for the X & Y axes, ... point will be 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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637 views

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r - XPath and namespace specification for XML documents with an explicit default namespace

I'm struggling to get the correct combination of an XPath expression and the namespace specification as required by ... ) [1] "XMLNodeSet" See Question&Answers more detail:os...

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

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495 views

1 answer

r - How to sort all dataframes in a list of dataframes on the same column?

I have a list of dataframes dataframes_list. For an example, I put the dput(dataframes_list) at the bottom. I want ... class = "data.frame")) See Question&Answers more detail:os...

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

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694 views

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r - Row-wise sort then concatenate across specific columns of data frame

(Related question that does not include sorting. It's easy to just use paste when you don't need to sort.) I have ... foo # 2: bar qux bar, qux See Question&Answers more detail:os...

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

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582 views

1 answer

r - Replace missing values (NA) in one data set with values from another where columns match

I have a data frame (datadf) with 3 columns, 'x', 'y, and z. Several 'x' values are missing (NA). 'y' ... NA in the using my imputed value df? See Question&Answers more detail:os...

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

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563 views

1 answer

r - Limiting variable scope

I'm trying to write a function, which limits the scope of R variables. For example, source("LimitScope.R") ... offered for the few practicals. See Question&Answers more detail:os...

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

0 votes

569 views

1 answer

r - Bars in geom_bar have unwanted different widths when using facet_wrap

I can'd find a solution for the following problem(s). I would appreciate some help a lot! The following code ... some fixing: Thanks a lot! See Question&Answers more detail:os...

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

0 votes

631 views

1 answer

r - Generating all permutations of N balls in M bins

I want to generate a set of permutations of n balls in m bins. The following set of nested lists generates ... does that would be acceptable. See Question&Answers more detail:os...

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

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722 views

1 answer

r - How to combine scales for colour and size into one legend?

I would like to know how to colorize the size_scale in scale_size() {ggplot2} in a plot where the size and ... as Illustrator...)? 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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767 views

1 answer

r - adding regression line per group with ggplot2

I do the following graph: > ddd UV.NF TRIS volvol 2 145.1923 31 500 μl / 625 μl 3 116.3462 ... attempts with geom_smooth() but without success. See Question&Answers more detail:os...

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

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520 views

1 answer

r - grouped operations that result in length not equal to 1 or length of group in dplyr

I'm not sure which function to use to do the following: library(data.table) dt = data.table(a = 1:4, b = ... expecting 2 (the group size) or 1 See Question&Answers more detail:os...

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

0 votes

734 views

1 answer

r - rlang::sym in anonymous functions

I recently notices that rlang::sym doesn't seem to work in anonymous functions and I don't understand why. ... . Can anyone explain why? See Question&Answers more detail:os...

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

0 votes

696 views

1 answer

r - Creating a density histogram in ggplot2?

I want to create the next histogram density plot with ggplot2. In the "normal" way (base packages) is ... the default ggplot fill colours. See Question&Answers more detail:os...

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

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744 views

1 answer

r - replace multiple values in a column for a single one

I have a rather basic question. I have several values in a column that I would like to replace for a single ... , and thanks for any help! See Question&Answers more detail:os...

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

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844 views

1 answer

r - (igraph) Grouped layout based on attribute

I'm using the iGraph package in R to layout a network graph, and I would like to group the vertex ... Master.Org". Thoughts ? Thanks! See Question&Answers more detail:os...

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

0 votes

507 views

1 answer

r - Convert factor to integer in a data frame

I have the following code anna.table<-data.frame (anna1,anna2) write.table<-(anna.table, file="anna.file.txt", ... have the same problem...... See Question&Answers more detail:os...

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

0 votes

583 views

1 answer

r - Time series plot gets offset by 2 hours if scale_x_datetime is used

Problem: I'm trying to plot a time series with ggplot but the data gets offset by two hours for some reason ... doing wrong? Thanks in advance. See Question&Answers more detail:os...

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

0 votes

511 views

1 answer

r - Calculate group mean while excluding current observation using dplyr

Using dplyr (preferably), I am trying to calculate the group mean for each observation while excluding that observation ... % do(special_avg(.)) See Question&Answers more detail:os...

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

0 votes

504 views

1 answer

r - Replace duplicated elements with NA, instead of removing them

I have a DF. One of its columns looks like DF$A A a a a b b b c c I am trying to replace all ... to NA values. Thank you for any suggestion. See Question&Answers more detail:os...

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

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