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Questions - r

Can i set the limit of y axis which contains time data in Rstudio?

Hi i have a problem that occurs in R. I can't handle the y - axis, which is hour : minute format. here is the code sample. library("data.table") library("ggplot2") #load library t...
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rainbear

r

ggplot2

time

Votes: 0

Answers: 1

Latest Answer

Combining IanCampbell's mention of date_labels= and changing it to labels= using a function I wrote that ensures you see 24:00 instead of 00:00, we can get (I think) what you want. format.myPOSIX <...
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r2evans

Problem for reading UTF-8 file with gtfstools

I'm trying to open a GTFS file that has UTF-8 encoding, but even though I changed my project's encoding in R to UTF-8, the characters are still truncated. The problem can be seen in the "stop_nam...
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Igor

r

encoding

character-encoding

gtfs

gtfstools

Votes: 0

Answers: 1

Latest Answer

You just need to use the encoding parameter on read_gtfs(): library(gtfstools) # GTFS file directory data_path <- system.file("extdata", package = "gtfstools") spo_path <- f...
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dhersz

Wanting to subtract 1 from several specific columns in a dataframe

I am super new to R, and the many facets of coding language. I have a set of data with many variables. I have a few columns (that are beside each other), where I need to subtract 1 from all values in ...
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Cassidy Tomlinson

r

subtraction

Votes: 0

Answers: 2

Latest Answer

One option is use dplyr from tidyverse. I use the function mutate to alter the columns, which I select by using across. Since you have a range of columns that are next to each other, then you can just...
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AndrewGB

Find mean of counts within groups

I have a dataframe that looks like this: library(tidyverse) x <- tibble( batch = rep(c(1,2), each=10), exp_id = c(rep('a',3),rep('b',2),rep('c',5),rep('d',6),rep('e',4)) ) I can run the...
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Adam_G

r

dataframe

dplyr

summarize

Votes: 0

Answers: 2

Latest Answer

library(dplyr) group_by(x, batch) %>% summarize(avg_exp = mean(table(exp_id))) # # A tibble: 2 x 2 # batch avg_exp # <dbl> <dbl> # 1 1 3.33 # 2 2 5
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r2evans

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