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POqplot error: "each group consists of only one observation. Do you need to adjust the group aesthetic?"
 

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  1. POqplot error: "each group consists of only one observation. Do you need to adjust the group aesthetic?"
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    <p>I am having a problem plotting a line using qplot. I've reviewed previous posts related to ggplot2 (e.g. <a href="https://stackoverflow.com/questions/16776450/ggplot2-each-group-consists-of-only-one-observation">ggplot2 each group consists of only one observation</a>), but my problem is a bit different.</p> <p>I only want a simple line graph plotting temperature against time (ymd_hms). Not two lines.</p> <p>My data looks like this:</p> <pre><code>Date.time 2011/06/17 00:00:00 2011/06/17 00:30:00 2011/06/17 01:00:00 2011/06/17 01:30:00 2011/06/17 02:00:00 2011/06/17 02:30:00 2011/06/17 03:00:00 2011/06/17 03:30:00 Temp 71.1 71.1 71.1 71.1 70.8 70.8 70.8 70.5 </code></pre> <p>This is the code I've used:</p> <pre><code>as.POSIXct(data$Date.time, format = "%Y/%m/%d %H:%M:%S") qplot(Date.time, Temp, data=mydata, geom="line") But I get this error: "Each group consists of only one observation. Do you need to adjust the group aesthetic?" </code></pre> <p>How can I fix this? </p> <p>Thank you!</p>
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    1. COcan you change your data(Data.tme,temp) by `dput(head(mydata))`
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