Hi, guys
How do you guys deal with the date and time data on x axis?
I have some trouble with it. Could you help with this?
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Sample Data
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The sample data look like this:
20181028_10:00:00 600
20181028_10:00:01 500
20181028_10:00:02 450
20181028_10:00:03 660
......
=============
My Code
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library(lubridate)
mydata <- read.table("e:/R_study/graph_test2.txt")
xdata <- ymd_hms(mydata$V1)
ydata <- mydata$V2
plot(xdata, ydata, type="o")
=============
Questions:
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1. Why my x axis does not show me the correct date time like ""2018-10-28
10:00:00 UTC" ?
2. If my data is very huge(like data in every second and the data has the whole
day , even the whole month), how can I display the x axis in a neat and clean
way?
Thanks very much.
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