Recent questions tagged R

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720 views

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r - Repeat regression with varying dependent variable

I've searched both Stack and google for a solution, none found to solve my problem. I have about 40 dependent ... results[i] <- summary } See Question&Answers more detail:os...

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

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879 views

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r - Combine geom_tile() and facet_grid/facet_wrap and remove space between tiles (ggplot2)

I have a data set with x, y, and z (resp) values along with two columns for facetting in ... , 0.777777777777778, 0.777777777777778, 1.55555555555556, 1.55555555555556...

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

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729 views

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r - Can't get aggregate() work for regression by group

I want to use aggregate with this custom function: #linear regression f-n CalculateLinRegrDiff = function (sample){ ... found What is wrong? See Question&Answers more detail:os...

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

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827 views

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r - Nested list based on flat/condensed name structure of named vector or list

I'm looking for a simple way to create a nested list based on a "flat" or condensed name structure of either a ... find what I was looking for. See Question&Answers more detail:os...

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

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842 views

1 answer

r - Subtract exactly one year from a POSIXct object

lets say we have this date "2014-05-11 14:45:00 UTC". I would like to get the exact POSIXct object for ... function. So does anyone know how? See Question&Answers more detail:os...

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

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821 views

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r - geom_polygon with multiple hole

I refer to the answer for this question and have additional question. I have modify the code as below: library( ... can I remove that? 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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744 views

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r - combining tail with by in data.table

What's the best way to get the tail row of a data.table by a factor? Say I have: > dt <- data.table(category = ... category value 1: A 2 2: B 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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927 views

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r - Calculate distance between 2 lat longs

I have 4 columns in my data frame lat1,long1...lat2,long2. I need to calculate distance between these pairs. I ... [i]), fun = distHaversine)} See Question&Answers more detail:os...

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

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734 views

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r - Manipulate a data frame where there are multiple colums for each experiment

I have many sequencing experiments each with multiple results for each of a few hundred genes, when the data is ... better way to do 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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831 views

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r - How to reorder a grouped bar plot by one category?

First of all, thanks to take a look to this ! :-) I have a grouped bar plot which I would like to order in ... (color = "black"), ) print(p) See Question&Answers more detail:os...

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

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839 views

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r - For each row return the column index and name of non-NA value

I have data frame where each row contain one non-NA value. ED1 ED2 ED3 ED4 ED5 1 NA NA NA NA NA NA 1 NA NA NA 1 ... c("ED1" "ED3" "ED2" "ED5") See Question&Answers more detail:os...

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

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629 views

1 answer

r - out of order date in ggplot2

I typically know how to order my dates in ggplot but something is different about this data and I'm hoping someone can ... names = c(NA, -84L)) See Question&Answers more detail:os...

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

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830 views

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r - Subsetting from a Data Frame

I'm early in the process of learning R. Say I have a data frame with a column named "Gender". If I ... know which data frame I working with. See Question&Answers more detail:os...

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

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1.7k views

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r - Can't find function "across" in mutate()

We're trying to clean up our data. We've collected the dataset and almost everything works, apart from the last ... a solution to this 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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792 views

1 answer

r - stemDocment in tm package not working on past tense word

I have a file 'check_text.txt' that contains "said say says make made". I'd like to perform stemming on it to get ... "sai" "sai" "make" "made" See Question&Answers more detail:os...

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

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780 views

1 answer

r - Combine some csv files into one - different number of columns

I already loaded 20 csv files with function: tbl = list.files(pattern="*.csv") for (i in 1:length(tbl)) ... not able to. So please help 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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1.1k views

1 answer

r - RMarkdown: ! Package pdftex.def Error; online image not found?

I am running into a problem when trying to include a web-based image within a R Markdown PDF document. Minimal ... show up in a PDF document? See Question&Answers more detail:os...

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

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907 views

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r - How to column bind two ffdf

Suppose two ffdf files: library(ff) ff1 <- as.ffdf(data.frame(matrix(rnorm(10*10),ncol=10))) ff2 <- ... the author abandoned it so I reposted. See Question&Answers more detail:os...

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

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854 views

1 answer

r - as.Date with two-digit years

If I convert the date 10.10.61 (DD.MM.YY) with as.Date(date, format="%d.%m.%y") for some reason it ... which brings up the same (wrong) result. See Question&Answers more detail:os...

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

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916 views

1 answer

r - Rgdal installation failed on ubuntu 16.04

I have been trying to install rgdal from RStudio Version 1.0.44 on ubuntu 16.04 then I was getting the gdal ... rgdal' had non-zero exit status See Question&Answers more detail:os...

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

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666 views

1 answer

r - How to implement a 2-d (hue x luminance) color scale?

Here's a toy data.frame that illustrates the problem (the most basic version thereof, that is; there will be ... each with its own color scale. See Question&Answers more detail:os...

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

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803 views

1 answer

r - For each row extract the value in the column name that match another value in the cell

I have a question which can be easily solved with a for-loop. However, since I have hundred-thousands rows in a ... [ order(new_mydf[,1]), ] See Question&Answers more detail:os...

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

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996 views

1 answer

r - Create a time series with a row every 15 minutes

I'm having trouble creating a time series (POSIXct or dttm column) with a row every 15 minutes. Something that ... how this can be done easily? See Question&Answers more detail:os...

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

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721 views

1 answer

r - Group by ID, each element of the new table is a vector

I have a table like this data.table(ID = c(1,2,3,4,5,6), R = c("s","s","n","n","s","s"), ... 3 4 Is there any option in data.table can do this? See Question&Answers more detail:os...

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

0 votes

1.1k views

1 answer

r - ggplot2 - create a barplot for every column of a dataframe

I know this question is really basic, but I am a total beginner and I have been the whole day trying to plot ... , medium, and high) Thank you See Question&Answers more detail:os...

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

0 votes

966 views

1 answer

r - getFinancials (quantmod) and tq_get (tidy quant) not working?

I'm getting the same error in both quantmod and tinyquant for financials data. Can anyone see if this is ... /NaN argument Can somebody help? See Question&Answers more detail:os...

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

0 votes

755 views

1 answer

r - Transform from Wide to Long without sorting columns

I want to convert a dataframe from wide format to long format. Here it is a toy example: mydata < ... everything gets transformed to character. See Question&Answers more detail:os...

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

0 votes

762 views

1 answer

r - Remove lines with only NAs from data.table

I want to remove the lines from a data.table that only contain NAs. > tab = data.table(A = c(1, ... way without knowing the column 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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