R language Visualization ggplot2 how to draw 24-hour dynamic Blood glucose Map

This article mainly introduces the relevant knowledge of "how to draw 24-hour dynamic blood glucose map with R language visualization ggplot2". The editor shows you the operation process through an actual case. The operation method is simple, fast and practical. I hope this article "R language visualization ggplot2 how to draw 24-hour dynamic blood glucose map" can help you solve the problem.

Data format sample=read.csv ("sample.csv", header = Theme stringsAsFactors = F) head (sample)

The method of creating equidistant time series (minutes) time=strptime ("00:00:00", "% H:%M:%S") + 300000breaks 287 # when there is no date, the default date is today's drawing code # time must first be converted to POSIXct format, like the following breaks, geom_datetime accepts only POSIXct format. Sample$time=as.POSIXct (sample$time) # breaks are customized Any time point can be chosen by ggplot (sample,aes (X-ray timekeeper lucky Group1) + geom_line () + scale_x_datetime (limits = c (as.POSIXct ("2020-03-24 00:00:00 CST"), as.POSIXct ("2020-03-24 23:59:59 CST"), breaks = c (as.POSIXct ("2020-03-24 00:00:00 CST"), as.POSIXct ("2020-03-24 04:00:00 CST"). As.POSIXct ("2020-03-24 07:00:00 CST"), as.POSIXct ("2020-03-24 12:00:00 CST"), as.POSIXct ("2020-03-24 18:00:00 CST"), as.POSIXct ("2020-03-24 22:00:00 CST"), labels = c ("00:00", "04:00", "07:00", "12:00", "18:00" "22:00") + scale_y_continuous (breaks = c, labels = c) + theme_bw () + theme (axis.text = element_text (size=16)) Axis.title = element_text (size=24)) # size of axis label + geom_hline (yintercept = c (6.1)) # add a horizontal line 6.1 is a high value of normal blood glucose.

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