Recent questions tagged R

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I am using tryCatch to catch any errors that occur. However, even though I catch them and return the ... the error handling I provide? 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 - readxl::read_xls returns "libxls error: Unable to open file"

I have multiple .xls (~100MB) files from which I would like to load multiple sheets (from each) into R as a ... and has not been resolved yet. 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 - Turning an igraph.vs into a data frame

So I am using all_shortest_paths to get an output, which looks like this: PathsE $res[[1]] + 4/990 vertices, named: ... - I am pretty new to R! See Question&Answers more detail:os...

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

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636 views

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r - Increment by one to each duplicate value

I am trying to find a proper way, in R, to find duplicated values, and add the value 1 to each subsequent ... 1 (stop times are in seconds). See Question&Answers more detail:os...

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

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976 views

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r - Fill missing values rowwise (right / left)

I'm looking for a way to "fill" NAs to the right (as opposed to down/up) with dplyr. In other words, I would like to ... c("a",3,4,4,6)) d d2 See Question&Answers more detail:os...

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

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673 views

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r - How to get table using rvest()

I want to grab some data from Pro Football Reference website using the rvest package. First, let's grab results ... snap count table? 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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920 views

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r - data.table - group by all except one column

Can I group by all columns except one using data.table? I have a lot of columns, so I'd rather avoid writing ... elegant way to do this too. See Question&Answers more detail:os...

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

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679 views

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r - Simpler way to reconstitute a melted data frame back to the original

How do I recreate a data.frame that I melted with reshape2? Reproducible example library(reshape2) library(plyr) ... else here before. argh. 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 - Greek letters in ggplot annotate

I want to add greek letters into text in ggplot. Here is what I want to do: library(ggplot2) df <- data. ... theta), paste0("=", xIntercept)) See Question&Answers more detail:os...

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

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658 views

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r - data.table::fread doesn't like missing values in first column

Is this a bug in data.table::fread (version 1.9.2) or misplaced user expectation/error? Consider this ... have malformed data somehow?). See Question&Answers more detail:os...

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

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722 views

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r - How can I find the index of all NA in a dataframe column?

I have a dataframe and in a particular column I want to find the index of all NA values. How can I do 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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r - Friedman test unreplicated complete block design error

I'm having trouble running a Friedman test over my data. I'm trying to run a Friedman test using this command ... here? Many thanks in advance! See Question&Answers more detail:os...

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

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748 views

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r - Reading aligned column data with fread

I came across a file like this: COL1 COL2 COL3 weqw asrg qerhqetjw weweg ethweth rqerhwrtjw rhqerhqerhq qergqer ... data with data.table ? See Question&Answers more detail:os...

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

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588 views

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r - Boxplots with Wilcoxon significance levels, and facets, show only significant comparisons with asterisks

Following up on this question and for the sake of completeness, I modified the accepted answer and customized the resulting plot, ... ="bold")) } #WHY USING THE CODE BELOW TO CHAN...

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

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841 views

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r - How to get sparse matrices into H2O?

I am trying to get a sparse matrix into H2O and I was wondering whether that was possible. Suppose we have ... load a sparse matrix into H2O? See Question&Answers more detail:os...

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

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686 views

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r - Problems loading rJava Package on Win7

I have installed the latest versions of R (2.15.2) and Java (7.11), and through RStudio (0.97.310) ... . Any help would be 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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795 views

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r - Removing plotly click event data

I am designing a Shiny app which contains a plotly scatter plot. I would like for the user to be able to click ... doesn't seem to work for me. 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 - ggplot and grid: Find the relative x and y positions of a point in a ggplot grob

I'm combining multiple plots of ggplot, using grid viewports, a necessity (I believe) because I want to rotate a ... the blocks on the top 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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716 views

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r - How to specify different colors with ggplot

library(ggplot2) p <- ggplot(mtcars, aes(wt, mpg)) p + geom_point(size=4) Suppose you have the above ... this be done with ggplot specifically? See Question&Answers more detail:os...

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

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683 views

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r - Finding list of positions in multidimensional structure (array)

Suppose I have a simple multidimensional structure, like this one: somestr<-array(sample.int(2, 120, replace= ... this function returns TRUE. See Question&Answers more detail:os...

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

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700 views

1 answer

r - Parse dates in format dmy together with dmY using parse_date_time

I have a vector of character representation of dates, where formats mostly are dmY (e.g. 27-09-2013), dmy (e.g ... @vitoshka: "This is a bug". See Question&Answers more detail:os...

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

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671 views

1 answer

r - Reordering dcast data frame

Is it possible to reorder the columns of data frame which is a result of dcast() call E.x. Given the ... still does not work. Any suggestions? See Question&Answers more detail:os...

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

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679 views

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r - Collapse vector to string of characters with respective numbers of consequtive occurences

I would like to collapse a CIGAR vector to a CIGAR string. By CIGAR vector to String I mean the following: I ... , that does not count. 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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894 views

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r - dcast fun.aggregate parameters

In the R package reshape2, does the dcast() function parameter fun.aggregate= have the ability to accept ... is great; 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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737 views

1 answer

r - How to "save" click events in Leaflet Shiny map

What I want to do is pretty simple. I want to be able to save all click events on a Shiny/Leaflet map. ... clicks/click$ids in a vector or list? See Question&Answers more detail:os...

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

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1.0k views

1 answer

r - Convert Julian date to calendar dates within a data frame

I have a data frame > df Age year sex 12 80210 F 13 9123 M I want to convert the year 80210 as ... day month year formate from Julian days. See Question&Answers more detail:os...

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

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893 views

1 answer

r - Most Efficient way to create a symmetric matrix

I have the following matrix/ dataframe: > e V1 V2 V3 V4 V5 1 0 2 3 4 5 2 0 0 6 8 10 3 0 0 0 ... big)? Is there a better way than nested loops? See Question&Answers more detail:os...

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

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714 views

1 answer

r - To find the difference between two column elements in a data frame

My question is a very basic one and I am new to R and programming. I have a data frame RESULT with two columns Max, Min ... NaN 6 25.6 23.1 2.5 See Question&Answers more detail:os...

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

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