Recent questions tagged R

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r - Using italic() with a variable in ggplot2 title expression

When I make a map using ggplot2 and attempt to italicize part of the figure title using a combination of ... evaluate before applying italic()? See Question&Answers more detail:os...

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

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806 views

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r - Error: package or namespace load failed for ‘car’

I'm unable to load the car package in R. I tried reinstalling using install.packages("car",dependencies=TRUE) ... load failed for car' See Question&Answers more detail:os...

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

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378 views

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r - Sum columns by group (row names) in a matrix

Let's say I have a matrix called x. x <- structure(c(1, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1 ... searched other questions, but couldn't figure this out. 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 "hello" > 0 return TRUE?

Try it: "hello" > 0 I tried using as.numeric("hello") but it just gave me back NA. What gives? See Question&Answers more detail:os...

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

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546 views

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r - Using ggplot2 with columns that have spaces in their names

I've the following data frame structure df <- as.data.frame(A) colnames(df)<- c("Sum of MAE", "Company ... help me getting the ggplot 2 working. See Question&Answers more detail:os...

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

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374 views

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r - Select a sequence of columns: `:` works but not `seq`

I'm trying to subset a dataset by selecting some columns from a data.table. However, my code does not work ... am I doing incorrectly? 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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291 views

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r - Choose specific number with probability

How can one choose a number with a specific probability p? Say we must choose between {0, 1} and the ... simple solution in R for this? See Question&Answers more detail:os...

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

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383 views

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r - as.alist.character?

I wish to create a call object from a string. alist(), which does more or less what I want in interactive ... ; can you suggest better? 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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263 views

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r - Copy-on-modify semantic on a vector does not append in a loop. Why?

This question sounds to be partially answered here but this is not enough specific to me. I would like to ... we know what will happen. See Question&Answers more detail:os...

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

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732 views

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r - ggplot2 Force y-axis to start at origin and float y-axis upper limit

After a bit of searching I am still not happy! Is there a simple way to make a graph with a y- ... )$layout$panel_scales_y[[1]]$range$range[[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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431 views

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r - ggplot2: have common facet bar in outer facet panel in 3-way plot

I have the following code: label_rev <- function(labels, multi_line = TRUE, sep = ": ") { label_both(rev( ... again in advance 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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355 views

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r - Saving plots within lapply

I have a list of dataframes: str(subsets.d) List of 22 $ 1 :'data.frame': 358 obs. of 118 variables: ..$ ... "70"), class = "data.frame")) See Question&Answers more detail:os...

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

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356 views

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r - Use hooks to format table in output

Using knitr and R Markdown, I can produce a tabularised output from a matrix using the following command: ``` ... the results option I specify. 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 - character string is not in a standard unambiguous format

I have a dataframe (df3) with with some values. One of these values is the daedlines. The data of this value is ... format How can I 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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445 views

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r - Adding a new column to matrix error

I'm trying to add a new column to existing matrix, but getting warning everytime. I'm trying this code: ... . What can be the 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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1.3k views

1 answer

r - how do I use geom_rect with discrete axis values

I would like to plot rectangles but I have an x axis that's discrete values. How do I set the xmin and xmax ... "+0.3, if that makes sense. See Question&Answers more detail:os...

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

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528 views

1 answer

r - Trouble with strings with <U+0092> Unicode characters

I have a very large dataset (70k rows, 2600 columns, CSV format) that I have created by web scraping. ... but everything else is in English. See Question&Answers more detail:os...

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

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1.2k views

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r - TwitteR setup_twitter_oauth() failing

I was following the vignette for the package, updated and loaded all necessary packages, seemed like it ... wordcloud following this tutorial. See Question&Answers more detail:os...

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

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400 views

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r - count the number of occurrences of "(" in a string

I am trying to get the number of open brackets in a character string in R. I am using the str_count function ... to get 3 for this example See Question&Answers more detail:os...

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

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302 views

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r - How to make a unique set of names from a vector of strings?

I have a vector of strings. Check out my vector, it's awesome: > awesome [1] "a" "b" "c" "d" ... might have called it. Probably not uniqueify. See Question&Answers more detail:os...

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

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342 views

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r - round but .5 should be floored

From R help function: Note that for rounding off a 5, the IEC 60559 standard is expected to be used, go to the ... there a fast way to 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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364 views

1 answer

r - Combining rows based on a column

structure(list(UserID = c(42L, 42L, 42L, 95L, 95L, 95L, 95L, 95L), TotalSpend_A = c(NA, NA, NA, NA, ... not multiple, how can I combine 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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442 views

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r - converting POSIXct to milliseconds

From ?POSIXct we know that Class "POSIXct" represents the (signed) number of seconds since the beginning of 1970 (in ... that I'm not seeing? See Question&Answers more detail:os...

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

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503 views

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r - Compare two columns element-wise

I have a big dataset df (354903 rows) with two columns named df$ColumnName and df$ColumnName.1 head(df) CompleteName ... 0)) Please 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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860 views

1 answer

r - How to create a dropdown list in a Shiny table using datatable when editing the table?

I used RStudio to read in a csv file and used Shiny to build an app as an interactive table, the cell I ... my bullets...... PLEASE 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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326 views

1 answer

r - How to Create a Single Dummy Variable with conditions in multiple columns?

I am trying to efficiently create a binary dummy variables (1/0) in my data set based on whether or not one or more ... takes on a 1? Thanks!!! See Question&Answers more detail:os...

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

0 votes

431 views

1 answer

r - Interleave two columns of a data.frame

I have a data frame like this: GN SN a 0.1 b 0.2 c 0.3 d 0.4 e 0.4 f 0.5 I would ... elements of the first column to gain the desired output? See Question&Answers more detail:os...

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

0 votes

287 views

1 answer

r - Error when installing rpy2 module in Python with easy_install

I've been trying to install the rpy2 module so I can use R functions inside my Python script, but I'm ... m doing wrong. Thank you! Hefin See Question&Answers more detail:os...

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

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