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r - strucchange not reporting breakdates
    This is my first time with strucchange so bear with me. The problem I'm having seems to be that strucchange ... the 3 NAs). Any suggestions? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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955 views
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r - Flatting a dataframe with all values of a column into one
    I have a data frame in this format str(df2) 'data.frame': 2 obs. of 10 variables: $ stc1 : Factor w/ 2 levels ... " "stc2" "stc3" "stc4" ... See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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970 views
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r - How to bind data.table without increasing the memory consumption?
    I have few huge datatable dt_1, dt_2, ..., dt_N with same cols. I want to bind them together into a ... dt_N once they are combined 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 - Balancing (creating same number of rows for each individual) data
    Given a data.table as follows, id1 is a subject-level ID, id2 is a within-subject repeated-measure ID, X are ... . Is this a job for reshape2? 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
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r - Parse datetime with lubridate
    I am trying to parse the following datetime with the following format: library(lubridate) a <- "2004-05-07 18 ... fine if lubridate is not used. 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 - Boxplot Whiskers at Min/Max
    In ggplot2, I would like to have the whiskers extend to the min and max values for a data set and not show ... extend to the min and max? 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 - Subsetting a data frame to the rows not appearing in another data frame
    I have a data frame A with observations Var1 Var2 Var3 1 3 4 2 5 6 4 5 7 4 5 8 6 7 9 and data ... data frames I've used are just arbitrary data. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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969 views
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r - Subset data based on Minimum Value
    This might an easy one. Here's the data: dat <- read.table(header=TRUE, text=" Seg ID Distance Seg46 ... 38930 Seg46 160.37672 Seg72 191.24400 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 - Error - No tidy method for objects of class lmerMod
    I am using a dataset from an online practice tutorial and the code can be found at the bottom of Page 4 (https: ... = ID/(ID + Residual)) 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 - Sweave doesn't seem to get .Rnw file encoding right
    This question arose out of the following question on tex.sx: Sweave generating invalid LaTeX. The problem seems to be ... R console in R.app.) 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 - Does rollapply() allow an array of results from call to function?
    # Loading packages require(forecast) require(quantmod) # Loading OHLC xts object getSymbols('SPY', from = '1950 ... suitable to rollapplyr()? 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 - continuous value supplied to discrete scale
    I am new to ggplot2. In fact, I only discovered it last week and I haven't quite figured out yet how ... value supplied to discrete 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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r - Strange behaviour of ggplot2
    I simply want to draw multiple arrows on a scatterplot using ggplot2. In this (dummy) example, an arrow is drawn but ... ])) plot(a) } 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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901 views
1 answer
r - Create a sequence from vectors with start and end positions
    Given two separate vectors of equal length: f.start and f.end, I would like to construct a sequence (by ... and would appreciate some guidance. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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1.0k views
1 answer
r - Converting letters to numbers in entire dataframe
    I am having trouble applying the chartr() function on all columns of my data frame for converting letters to ... of columns) Sincerily, ykl 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 - how to force geom_smooth render for ggplot?
    I would like to force render a smoother line for this multi-group plot, even in situations where a group has only ... The output I want to see: 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 - ggplot2: show missing value colour in legend
    Just wondering what is required so the colour for missing values is shown in the legend? Looking at example ... listed in the legend. 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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998 views
1 answer
r - Color a designated area?
    I am trying to figure out if there is a way to color only half of a circle that I created using grid.circle ... white. Thank you for your 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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1.1k views
1 answer
r - Barchart of count of true/false values by group (dodged graphs)
    I am rather new in R and ggplot. And I am not sure if what I want is doable. Here is (a ... created after using the suggestion from @mtoto) See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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999 views
1 answer
r - Create a bar graph with pre-summarized data using ggplot2
    I have following data in a file called binFile 78 1 79 4 80 33 81 150 82 714 83 2663 84 8834 85 25679 86 63654 ... y, 0) : object 'y' 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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974 views
1 answer
r - How to show whiskers and points on violin plots?
    I have a dataframe df with the following data. I want to plot the logCPM expression of the gene between two ... expression of that) Thank you See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.0k views
1 answer
r - How to sort a matrix/data.frame by all columns
    I have a matrix, e.g.: a = rep(0:1, each=4) b = rep(rep(0:1, each=2), 2) c = rep(0:1, times ... . How can I sort by a large number of columns? 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 answer
r - How to find first element of a group that fulfill a condition
    structure(list(group = c(17L, 17L, 17L, 18L, 18L, 18L, 18L, 19L, 19L, 19L, 20L, 20L, 20L, 21L, ... group_by should be used but what next? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.0k views
1 answer
r - data.table::fread and Unbalanced "
    When I tried to read a csv file using data.table:fread(fn, sep='', ... ":"Z0JiRA0qPFtWM3BYVltmcx5MWF9ZS0YLdW1ydXoqPycuJS8idXdlY3R0TGBtU 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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888 views
1 answer
r - Shiny Reactivity Fails with data.tables
    As a follow up to Modifying a reactive value should trigger an observe chunk, I investigated the issue further and ... false for the first time. See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.0k views
1 answer
r - Subtract every element of vector A from every element of vector B
    Does anyone know any way to accomplish the following in a vectorized format? Rather than subtracting member-wise ... vectors of uneven length? See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
0 votes
1.0k views
1 answer
r - All-to-all setdiff on two numeric vectors with a numeric threshold for accepting matches
    What I want to do is more or less a combination of the problems discussed in the two following threads: ... function that would 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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1.3k views
1 answer
r - Plotting a step function with only horizontal lines
    I use ggplot2 to plot a step function using geom_step(). What I need now is to get rid of the vertical ... (x,y))+geom_step(lines=horizontal) See Question&Answers more detail:os...
asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)
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