Recent questions tagged R

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r - How to print (to paper) a nicely-formatted data frame

I'd like to print nicely-formatted data frames to paper, ideally from within a script. (I am trying to ... documentation to be very helpful). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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318 views

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r - Add column to data frame which returns 1 if string match a certain pattern

I want to add a column to an existing data frame which identifies if the element in that row contains a specific ... and 0 if it doesn't? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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381 views

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r - Factor with comma and percentage to numeric

I have a column ("rates")which is a factor with several levels such as: 16 Levels: -0,186% -0,229% -0,326% .. ... numeric(gsub("\%", "", rates)) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - How to convert numeric values to time without the date?

I want convert numeric values to time without the date for the data like 1215,1423,1544,1100,0645,1324 in R. ... 44. I was trying as.POSIXct. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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345 views

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r - Flattening a delimited composite column

I got a data frame in R where one of the fields is composite (delimited). Here's an example of what I got ... more than 20 million rows of this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Plot scatterplot on a map in Shiny

how do I plot my scatterplot on a map? I managed to plot my scatterplot, however I wanted it to be plotted on ... = server) Thank you very much! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - how can I make stacked barplot with ggplot2

Hi I wanted to make a stacked barplot using ggplot2 with below data Chr NonSyn_Snps Total_exonic_Snps A01 9217 ... this. Thanks Upendra See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Using anti_join() from the dplyr on two tables from two different databases

I am working on a ETL testing project, where my need is to compare data between two tables from two ... "TRUE") any suggestions please? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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442 views

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r - Can not connect PostgreSQL(over SSL) with RPostgresql on Windows

I can not connect PostgreSQL(on Heroku) with RPostgreSQL on Windows(64bit). I can connect local postgresql(not ... xxxxx Is there any solution? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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r - Indexing integer vector with NA

I have problems understanding this. I have an integer vector of length 5: x <- 1:5 If I index it with a ... should be the result of x[NA]? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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281 views

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r - Fit many formulae at once, faster options than lapply?

I have a list for formulas I want to fit to data, rather than running a loop I'd like to do this ... are coefficients, and some standard errors. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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493 views

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r - Shift a column of lists in data.table by group

I have a column of lists in R: DT <- data.table(foo = c(list(c("a","b","c")), list(c("b","c")), list(c("a"," ... ,NA 2: 1 c,NA 3: 2 b,NA 4: 2 NA See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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380 views

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r - Create several dummy variables from one string variable

I've tried pretty much everything from this similar question, but I can't get the results everyone else seems ... split. I appreciate any help. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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351 views

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r - Remove duplicate rows of a matrix or dataframe

I want to check which rows of the matrix or dataframe are duplicate, how can we find it? We want to remove ... . Col1 Col2 database A B IntAct See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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332 views

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r - installing ggplot2 package on ubuntu

I'm on ubuntu precise pangolin running inside a VM, using R 3.1 and Rstudio 0.98.507 and I'm unable to ... there is no package called ggplot2' See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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441 views

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r - Expand Data Frame

I want to expand a data frame given some conditions. It is a bit similar to this question expand data frames inside ... to do this? Thank you! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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524 views

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r - lm(): What is qraux returned by QR decomposition in LINPACK / LAPACK

rich.main3 is a linear model in R. I understand the rest of the elements of the list but I don't get what qraux ... attr(*, "class")= chr "qr" See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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420 views

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r - split a vector by percentile

I need to split a sorted unknown length vector in R into "top 10%,..., bottom 10%" So, for example if I ... does anyone knows how to do this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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445 views

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r - How can I compare two factors with different levels?

Is it possible to compare two factors of same length, but different levels? For example, if we have these ... sets of factors are different See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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371 views

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r - Override horizontal positioning with ggrepel

I'm working on a chart similar to a slopegraph, where I'd like to put labels along one or both sides with ... a bug here that drops my hjust? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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305 views

1 answer

r - How to detect that a vector is subset of specific vector?

I have two vectors (sets) like this: first<-c(1,2,3,4,5) second<-c(2,4,5) how can I detect that ... or not? is there any function for this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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404 views

1 answer

r - How do I clear an NA flag for a posix value?

Sample data in csv format. Save in a file broken_posix.csv Date 3/10/2012 23:00 3/11/2012 0:00 3/11/ ... doesn't seem like the right method. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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415 views

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r - How to select range of columns in a dataframe based on their name and not their indexes?

In a pandas dataframe created like this: import pandas as pd import numpy as np df = pd.DataFrame(np.random. ... up question can be found here. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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339 views

1 answer

r - Find overlapping regions and extract respective value

How do you find the overlapping coordinates and extract the respective seg.mean values for the overlapping region? ... 44910000 gain 0.0110 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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325 views

1 answer

r - random sampling - matrix

How can I take a sample of n random points from a matrix populated with 1's and 0's ? a=rep(0:1, ... the random points would also be important. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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665 views

1 answer

r - Error: package or namespace load failed for ‘tidyverse’ in loadNamespace

I'm getting the following error when I'm loading tidyverse. It was all working fine a few minutes ago when I was ... but >= 0.3.1 is required See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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252 views

1 answer

r - month language in the as.date function

I don't know how to figure out this problem. That's a piece of my df: structure(list(ID = structure(c ... values like explained in this post. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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1.2k views

1 answer

r - Subset dataframe based on POSIXct date and time greater than datetime using dplyr

I am not sure what is going wrong with selecting date times as a POSIXct format. I have read several comments on ... 0.5 and Lubridate 1.6 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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