[R] Novice users in need of urgent help with boxplots

WRAY NICHOLAS nicholas.wray at ntlworld.com
Tue Feb 28 18:52:46 CET 2017

The first thing you need to do is to read your data in.  Convert your excel file
to a csv file, say mydata.csv, and make sure that you know where it is eg folder
"Datafile" on C drive.  Then use setwd("C:/Datafile") and then
read.csv("mydata.csv")   That should upload it and you can trawl t'internet
looking at the masses of R sites for instructions on what to do next


>     On 28 February 2017 at 14:11 Ashley Patton via R-help
> <r-help at r-project.org> wrote:
>     Hi, please forgive me but I am completely new to R and have no experience
> with it other than a 3 day training course but I need to use it for an urgent
> project and don't have time to learn a whole new language before the deadline,
> although I hope to get there soon.
>     My question is this. I have a dataset in Excel containing data from 20
> sites. The data comes from loggers recording every half hour for a year. So my
> Excel file has 20 columns each with the name of the site as the header and
> each column contains the data recorded throughout the year. What I want to do
> is show the variation in that data at each site. So I would have a boxplot
> showing site 1, site 2, site 3... etc across the x axis and then the variable
> data (which in this case in air temperature) on the y axis so I can see what
> range in temperatures occurred throughout the year, what where the max, min,
> outliers etc. I have trawled the Internet looking for a code that will allow
> me to do this but all I can find is plots that refer to data where you are
> looking at a range in data with a category (like range in mpg with cylinder
> size) whereas I want to so look at the data for all of my sites just on one
> plot. I know this is possible because I have seen it down by someone else b!
>     ut I don't know where to start. Does anyone have any code that would do
> this or at least know where I could go? Like I say, I am a complete begging so
> writing code is a brand new thing for me. Many, many thanks to anyone who
> helps me with this one.
>     Many thanks
>     A
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