[R] [EXT] Mutate issue help needed

[Eik Vettorazzi]

Hi Bruce,
I wonder how it could have worked exactly as you quoted in the past.

the problem starts here
> fname <- "Buzz.txt"
> # First assign data set to All with All<- *dataset*
> All<- fname 

actually you don't assign a dataset to 'All', but a character (the file name), I assume you want to read this file with read.table or alike

Best
  
Am 17.12.2024 um 13:30 schrieb Bruce Miller:

> Hi all,
>
> It has been a year or so since I have run this code to plot temporal
> activity.
> It was working now I am getting an error related to MUTATE.
>
> Error in UseMethod("mutate") :
>     no applicable method for 'mutate' applied to an object of class
> "character"
> Any help/suggestions welcomed.
> Tnx to all the R code gurus out there.
> R v 4.4.0
>
> Bat Dude
>
> The saved code I used is below.  Perhaps a package has changed since I
> last ran this?
> ++++++++++++++++++++++++
>
> library(lubridate) *#date functions come from here*
>
> library(tidyverse) *# dplyr and ggplot2 from here*
>
> *setwd("T:\\Hondurus\\Temporal")*
>
> *library(ggplot2); theme_set(theme_bw())#Works well*
>
> *fname <- "Buzz.txt"*
>
> #First assign data set to All with All<- *dataset*
>
> All<- *fname *
>
> # This uses Night and Time for X-Y labels
>
>    evening <- function(datetime) {
>
> update(datetime
>
> , yday = yday(datetime) - if_else(am(datetime), 1, 0)
>
> , hour = 17 *#Definedfor 17:00*
>
> , minute = 0
>
> , second = 0
>
> )
>
> }
>
> *# Create labels and corresponding breaks for the time in seconds from 1700*
>
> label_hours = c("17:00", "18:00", "19:00", "20:00", "21:00", "22:00",
> "23:00", "00:00", "01:00", "02:00", "03:00", "04:00", "05:00", "06:00")
>
> break_hours = c(0, 1:13*3600)
>
> *# Fix the data column, combine the date and hour/min, and calculate the
> elapsed time from #1700 in seconds*
>
>    polished <-
>
> All %>%
>
> mutate(*#convert Date from chr to Date*
>
> Date = as.Date(Date, "%m/%d/%Y")
>
> *#combine day and hour/min including **UTC*
>
> , datetime = as.POSIXct(paste(Date, Time, sep = " ","%Y-%m-%d %H:%M"),
> tz = "UTC")
>
> *#Now calculate the number of seconds since the start of the evening*
>
> , evening = evening(datetime)
>
> , Night = format(as.Date(evening), "%b %d, %Y")
>
> , Time = as.double(datetime - evening, "secs")
>
> )
>
> *Error in UseMethod("mutate") :
>     no applicable method for 'mutate' applied to an object of class
> "character"*
>
> ggplot(polished, aes(x =Night, y = Time, colour = Species)) +
>
> #geom_jitter() +
>
> geom_point()+
>
> *scale_colour_hue(l=40)+*
>
> ggtitle(label = 'Feeding buzz temporal activity')+
>
> facet_grid(. ~ Night) +facet_wrap(facets = ~Species)+
>
> scale_y_continuous(labels = label_hours, breaks = break_hours) +
>
> theme(axis.text.x = element_text(angle = 270))
>
>
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>
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Eik Vettorazzi

Universitätsklinikum Hamburg-Eppendorf
Institut für Medizinische Biometrie und Epidemiologie

Christoph-Probst-Weg 1
4. Obergeschoss, Raum 04.1.021.1

20246 Hamburg

Telefon: +49 (0) 40 7410 - 58243
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Web:www.uke.de/imbe

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