Recent questions tagged R

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r - Does calculating correlation between two dataframes require a loop?

I have a set of large dataframes that look like A and B: A <- data.frame(A1=c(1,2,3,4,5),B1=c(6,7,8,9, ... correlations are: [1] 0.95 0.92 0.46 See Question&Answers more detail:os...

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

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426 views

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r - How to annotate ggplot2 qplot outside of legend and plotarea? (similar to mtext())

I would like to annotate my plots with a filename. With plot() I used mtext: plot(1:10) mtext("File xy-12 ... hint for me. Kind regards, Jonas See Question&Answers more detail:os...

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

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406 views

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r - npc coordinates of geom_point in ggplot2

How can I get the x, y coordinates of a geom_point in a ggplot, where the reference frame is the entire ... the plot width and plot height. See Question&Answers more detail:os...

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

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690 views

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r - Include a comma separator for data labels

I have a box plot using ggplot which lists the data labels, but am not able to bring a comma separator ... =1)+ scale_y_continuous(labels=comma) See Question&Answers more detail:os...

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

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482 views

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r - How to display line numbers for code chunks in rmarkdown HTML and PDF

how do i display the line numbers of my code chunk with rmarkdown? ```{r} x <- 1:10 y <- x^2 plot(x, ... on Github... Would be glad for any 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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673 views

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r - Renaming multiple columns with dplyr rename(across(

Hey i'm trying to rename some columsn by adding "Last_" with the new version of dplyr but I keep getting this error ... )) dplyr version: v1.0.2 See Question&Answers more detail:os...

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

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305 views

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r - How do I do a conditional sum which only looks between certain date criteria

Say I have data that looks like date, user, items_bought, event_number 2013-01-01, x, 2, 1 2013-01-02, x, 1, 2 ... , y, 11 2013-01-06, y, 12 See Question&Answers more detail:os...

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

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475 views

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r - Rolling computation of two simultaneous variables iteratively or rowwise, using three other given variables

The dataset named crass looks like - > dput(crass) structure(list(WT_TRADE_PRICE = c(3801, 3801, 3801, 3797, ... 20 3788 3788 3788 3788 3797 See Question&Answers more detail:os...

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

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413 views

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r - Create line graph with ggplot2, using time periods as x-variable

I am very new to R, and so this question is extremely elementary, but I can't solve it myself. I would ... points will be connected by a line? See Question&Answers more detail:os...

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

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312 views

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r - Legend ordering in ggplot2

I created the following graph in R using ggplot2. As you can see, the order in the legend is not exactly what ... axis.text.x = element_blank()) See Question&Answers more detail:os...

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

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726 views

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r - How to start ggplot2 geom_bar from different origin

I'd like to start a bar chart at somewhere other than the y = 0. In my case, I want to start the bar ... with a different y axis: Any advice? See Question&Answers more detail:os...

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

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550 views

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r - How to use a character vector of column names in the formula argument of dcast (reshape2)

Say I have a dataframe df with dozens of identifying variables (in columns) and only a few measured variables ( ... formula = argument? 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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325 views

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r - the rules of subsetting

Having df1 and df2 as follows: df1 <- read.table(text =" x y z 1 1 1 1 2 1 1 1 2 2 1 1 2 2 2 ... to understand why I am wrong in my [ attempts. See Question&Answers more detail:os...

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

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571 views

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r - Extract coefficients from ggplot2-created nls fit

There's a nice explanation here of how to use ggplot2 to create a scatterplot, fit the data using nls, and ... doing a separate nls call. See Question&Answers more detail:os...

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

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340 views

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r - Closest point to a path

I have two sets of points, called path and centers. For each point in path, I would like an efficient ... but obviously faster would be better. See Question&Answers more detail:os...

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

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580 views

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r - Running out of heap space in sparklyr, but have plenty of memory

I am getting heap space errors on even fairly small datasets. I can be sure that I'm not running out of system ... much of the system's memory. See Question&Answers more detail:os...

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

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496 views

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r - plot linear regressions lines without interaction in ggplot2

This code plots regression lines with interactions in ggplot2: library(ggplot2) ggplot(mtcars, aes(hp, mpg, ... be plotted with stat_smooth? See Question&Answers more detail:os...

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

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624 views

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r - ggplot2: horizontal position of stat_summary with geom_boxplot

I want to annotate mean of each boxplot using ggplot2. However, I could not figure out how to horizontally center the ... = drv)) + theme_bw() See Question&Answers more detail:os...

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

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406 views

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r - Difference between `paste`, `str_c`, `str_join`, `stri_join`, `stri_c`, `stri_paste`?

What are the differences between all of these functions that seem very similar ? See Question&Answers more detail:os...

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

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384 views

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r - Summarize different Columns with different Functions

I have the following Problem: In a data frame I have a lot of rows and columns with the first row being the date. For ... 4.2 82 2 0.3 1 70 See Question&Answers more detail:os...

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

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834 views

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r - How to add my Outlook email signature to the COM object using RDCOMClient

I am working RDCOMClient into some of my work flow and thanks to agstudy's answer Here I am able to ... outlook signature here. outMail$Send() See Question&Answers more detail:os...

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

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413 views

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r - How to output a stem and leaf plot as a plot

Is there a way to output a stem and leaf plot to a graphical device, such as window() / quartz()? There ... there a simple hand-coded solution? See Question&Answers more detail:os...

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

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385 views

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r - Text color based on contrast against background

I have the following plot: m <- structure(list(Var1 = structure(c(1L, 2L, 3L, 4L, 5L, 6L, 7L, 1L, 2L ... black and in the darker boxes is white? See Question&Answers more detail:os...

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

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809 views

1 answer

r - Using rollmean when there are missing values (NA)

I have a data set which has a couple of NA in it. I take a rolling mean and expect that when there is no NA ... [1] grid_3.0.1 lattice_0.20-15 See Question&Answers more detail:os...

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

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510 views

1 answer

r - Convert row names in multiple data frames to column in data frame

I have a list of .csv files that I have read in to R and placed in a large data frame called data that consists ... 01, 2012 02, 2012 03... See Question&Answers more detail:os...

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

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575 views

1 answer

r - "Could not find function" in Roxygen examples during CMD check

I'm running a CMD check on a package in RStudio, part of which analyses the @examples in the inline Roxygen ... anyone says how to fix 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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275 views

1 answer

r - Substitute A for B and B for A in a string

I want to substitute all A's for B's and B's for A's in a string in R. My input is x = " ... tried sub but I cannot do multiple substitutions. See Question&Answers more detail:os...

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

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540 views

1 answer

r - Control alpha blending / opacity of n overlapping areas

I struggle to understand (and control) the blending of alphas - unfortunately, alpha values don't simply "add up" ... 'black') + coord_fixed() See Question&Answers more detail:os...

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

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