Recent questions tagged R

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r - How to control number of minor grid lines in ggplot2?

By default, it seems that ggplot2 uses a minor grid that is just half of the major grid. Is there any way ... minor grid appear at every decade? 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 modify this Correlation Matrix plot?

I have the following codes to display a correlation matrix, panel.cor <- function(x, y, digits=2, prefix=" ... how to change the fitting method? 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 - Obtain latitude and longitude from address without the use of Google API

I am currently working on a large population-based database where it is required that I compute the distance between ... using R? 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 - Plot every column in a data frame as a histogram on one page using ggplot

I would like to plot each column of a data.frame using a histogram on one page. Here is an example using the ... not sure what it is. 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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454 views

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r - Why can't I get a p-value smaller than 2.2e-16?

I've found this issue with t-tests and chi-squared in R but I assume this issue applies generally to other ... for such a tortuous question. See Question&Answers more detail:os...

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

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559 views

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r - Is there a function to add AOV post-hoc testing results to ggplot2 boxplot?

I'd like to add results of a Tukey.HSD post-hoc test to a ggplot2 boxplot. This SO answer contains a manual ... prefer to do this in ggplot2. 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 - Revert list structure

GOAL Given a list of lists my goal is to reverse its structure (R language). So, I want to bring the ... your nested list have different 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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368 views

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r - Knitr style table with CSS

I am sure that I am overlooking something obvious, but I want to style my tables produced and kable with custom css. ... ="flat-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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r - what does ..level.. mean in ggplot::stat_density2d

I've seen some examples when constructing a heatmap of having the fill variable set to ..level... Such as ... couldn't find any suitable guide. 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 - Adding lagged variables to an lm model?

I'm using lm on a time series, which works quite well actually, and it's super super fast. Let's say ... being able to use predict directly? See Question&Answers more detail:os...

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

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967 views

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r - ggplot x-axis labels with all x-axis values

I'm plotting ggplot with geom_point. The x-axis will be individuals' ID, and y-axis is variable A. How ... not presenting individual ID. 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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442 views

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r - Deleting rows that are duplicated in one column based on the conditions of another column

Here is an example of my data set; Date Time(GMT)Depth Temp Salinity Density Phosphate 24/06/2002 1000 1 33. ... (deepest) depth. Any ideas? See Question&Answers more detail:os...

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

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476 views

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r - Barplot with 2 variables side by side

I am trying to get a barplot which is fairly common, but despite reading tons of documentation on plotting in ... here. 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 - Writings functions (procedures) for data.table objects

In the book Software for Data Analysis: Programming with R, John Chambers emphasizes that functions should generally ... data.table procedures? See Question&Answers more detail:os...

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

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319 views

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r - How to organize large Shiny apps?

What are the best practices to organize larger Shiny applications? I think best R practices are also applicable to ... ui, server = server) 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 - Correlation between NA columns

I have to write a function that takes a directory of data files and a threshold for complete cases and calculates ... -0.12350667 -0.07588814 See Question&Answers more detail:os...

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

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344 views

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r - Referring to variables by name in a dplyr function returns object not found error

library(nycflights13) library(dplyr) sum.na <- function(df,x){df %>% summarise(n=sum(is.na(x)))} sum.na( ... ) : object 'arr_time' not found** See Question&Answers more detail:os...

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

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263 views

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r - Gathering wide columns into multiple long columns using pivot_longer

I have code which converts from wide to long with gather but I have to do this column by column. I want to use ... ac, cs or se as I need. See Question&Answers more detail:os...

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

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281 views

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r - Load image from website

I am trying to add some chemical structure images to some plots I have created. I am using the ACToR database to access ... ) [1] "con" "rawpng" See Question&Answers more detail:os...

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

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763 views

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r - How to get around error "factor has new levels" in cross-validation glm?

My goal is to use cross-validation to evaluate the performance of a linear model. My problem is that my ... like to avoid deleting them.) 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 - Identifying or coding unique factors

I would like to create a new variable,litter, to indicate each sow or litter in different farrowing dates (fdate). Each ... 1 9296 3/10/2009 6 See Question&Answers more detail:os...

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

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388 views

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r - Parse string with additional characters in format to Date

I have a string variable that I want to parse to class Date. In addition to the day, year and month, the ... becomes simply this "9 2005 06"? See Question&Answers more detail:os...

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

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363 views

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r - How to get rows, by group, of data frame with earliest timestamp?

df <- data.frame(group=c(1,2,4,2,1,4,2,3,3), ts=c("2014-02-13","2014-06-01","2014-02 ... to execute it without lots of subsetting and rejoining. See Question&Answers more detail:os...

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

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473 views

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r - Converting multiple boolean columns to single factor column

my data frame look like this: A S1 S2 S3 S4 1 ex1 1 0 0 0 2 ex2 0 1 0 0 3 ex3 0 0 1 0 4 ex4 ... ex8 S2 ex9 S3 ex10 S1 anybody help my problem? See Question&Answers more detail:os...

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

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367 views

1 answer

r - ggplot2: issues with dual y-axes and Loess smoothing

I'm a novice with R and ggplot. I recognize the power of R and elegance of ggplot and am trying to learn. Normally, ... .7,82.46829268,,,,,,,,, See Question&Answers more detail:os...

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

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414 views

1 answer

r - How to sum and combine two data frames?

I have two data frames: DATA1: ID com_alc_cd com_liv_cd com_hyee_cd A 1 0 0 B 0 0 1 D 0 0 0 C 0 1 0 DATA2: ID ... 2 1 C 0 2 0 D 0 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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306 views

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r - Difference between mean(c(1,2,21)) and mean(1,2,21)

What's the difference between these two? mean(c(1,2,21)) and mean(1,2,21) The answers are different, but what's the meaning of each one? See Question&Answers more detail:os...

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

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321 views

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r - How do I subset column variables in DF1 based on the important variables I got in DF2?

I have 2 df's like this ID = c('x1','x2','x5') df1 <- data.frame(ID) x1 = c(1,2,3, ... variables and hence would like to do it programatically. See Question&Answers more detail:os...

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

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