Recent questions tagged R

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r - Lubridate as_date and. as_datetime differences in behavior

I have a vector of numerics representing the number of milliseconds since January 1, 1970. I would like to convert ... .1.2 stringr_1.1.0 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 show abline of geom_abline in legend

in the following sample data , how can i display the abline ( i e the red color line) in legend with y. ... red line to be displayed in legend 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 - Time Series Interpolation

I have two series of data (calibration and sample) and am trying to interpolate the calibration data from monthly to the ... = c(NA, -8L)) 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 - Common elements of vectors with multiple elements

How to efficiently find common elements of two vectors with duplicate elements? Example: v1 <- c(1, 1, 2, ... 't handle duplicate elements 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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r - How To Center Axes in ggplot2

In the following plot, which is a simple scatter plot + theme_apa(), I would like that both axes go ... devtools::install_github("crsh/papaja") 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 - Reorder factor levels using names

I can reorder the levels of a factor using their indices like this factor(iris$Species,levels(iris$Species)[c(3: ... a factor using their names? 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 - Retrieve the list of files from a URL

I would like to get a list of all the files available at this address: http://www1.ncdc.noaa.gov/pub/data/cmb/ ... was the HTML code of the URL. 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 extract the legend labels from a ggplot2 object?

I am interested in automatically extracting the legend of ggplot2 object as a table (not as a graphics ... #00BA38 versicolor #619CFF virginica 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 - Brackets make a vector different. How exactly is vector expression evaluated?

I have a data frame as follows: planets type diameter rotation rings Mercury Terrestrial planet 0.382 58.64 ... (with reference to brackets)? 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 - sum over past window-size dates per group

The problem is similar to How do I do a conditional sum which only looks between certain date criteria but slightly ... fill=NA,rm.na=T)) 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 - why the object is vector?

> x=c(1,2,3,4,5) > x1=list(n1=1,n2=2,n3=x) > is.vector(x1) [1] TRUE > is.list(x1) [1] TRUE why is.vector(x1)=true?i can't understand. 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 - Doing a "fuzzy" and non-fuzzy, many to 1 merge with data.table

Lets assume I have two databases dfA and dfB. One has individual observations and one has country level data (which ... 2. The try before that 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 - Text alignment and font size in gtable

My question relates to the answer by Baptiste that you can find here: https://stackoverflow.com/a/18667413/2072440. ... text in them. Thank you. 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 - ggplot2 x - y axis intersect while keeping axis labels

I posted my original question yesterday which got solved perfectly here Original post I made a few addition to my code ... -1", grep=T) NULL 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 - Add mean columns to dataframe by category with NA's

I'm trying to add a column of the means to my data-frame with some code I can run over many different ... 4 Any help would be 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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r - Count total missing values by group?

EDIT: input very new to this. I have a similar problem to this: group by and then count missing variables? ... #5 E 584 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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r - Find median of every row using matrixStats::rowMedians

I am trying to calculate the row median for a data frame df with rowMedians from matrixStats package. Abundance ... . Any help is 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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r - Replace elements of vector by vector

I want to replace few elements of vector by whole second vector. Condition is, that replaced elements of first ... success. Can anyone 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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r - Finding the mean of a subset

I have made a subset from the dataframe 'Indometh' called 'indo': indo Subject time conc 1 1 0.25 1.50 13 2 ... I could do this just for conc. 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 use geom_bar for making connected bar plot in ggplot2?

I'm trying to use geom_bar for getting a bar plot connected with lines. How to draw connecting lines between samples? ... . How can I make 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 - How to reset path.expand on tilde

On Windows, in my RProfile.site, I used to set: Sys.setenv(R_USER="/my/desired/path/to/tilde") However, ... expanded to /some/path/to/projects/ 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 - Analysis using linear regression based on subgroups

Assume I have data (t,y), where I expect a linear dependency y(t). Furthermore, there exist attributes to each ... but to me it is mystery 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 - Extract second element from every item in a list

This additonal information might help. Here is what I am trying to do: This throws more light but here is ... list all their stores together. 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 - Recoding dummy variable to ordered factor

I need some help with coding factors for a logistic regression. What I have are six dummy variables representing ... is very 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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r - legends orientation in ggvis

In ggvis how to make legend vertical? mtcars %>% ggvis(x = ~wt, y = ~mpg, fill = ~cyl) %>% ... horizontally. I want it to be vertical. 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 find & remove duplicates in data frames?

I have the follwing data frame which happens to be NBA draft data: draft_year draft_round teamid playerid draft_from 1961 ... and must be kept. 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 - Why does as.numeric(1) == (3 | 4) evaluate to TRUE?

I wanted to make a simple comparison using h == 1 | 2 where h could be an integer between 1 and 4. To my ... or 4 and the answer will be FALSE? 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 - ggplot2: ..count.. not working with stat_bin_hex anymore

Some months ago I was able to produce the following plot without errors: library(ggplot2) library(hexbin) x ... still works with stat_bin_2d. See Question&Answers more detail:os...

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

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