This is an opportunity to check that you were able to complete all the pre-requisites that were sent out in the pre-course email. Everything is detailed here is you are looking for the instructions
xcode-select--installand follow the onscreen instructions
We’d like to introduce three data sources that will be using during the course.
a Google drive folder
An RCT comparing post-operative pain control after axillary node dissection with local anaesthetic infiltration via the drain versus injection to the skin flaps (Thanks to Muska Khpal)
Please note (stern tone of voice!) that any data that is placed on the internet cannot include any patient identifiers.
You are also encourage to bring along your own data. We can’t promise to spend time on this, but there are exercises to do along the way, and you might want to try these exercises out on your own work.
It’s going to be helpful to have an understanding of how files and folders (aka directories) are named on your computer because unlike your usual habit of pointing and clicking to open something, we will need to start writing things down.
C:\drive (a back slash)
/(a forward slash)
You can write the relative ‘path’ to any file as if you walked from one file (or directory) to another. Sometimes this means walking up the branch to descend another one. To walk up a level you type
... For example, if you are working in your
documents folder which is at
And you want to go to the same
readme.docx file as before. You would type
which reads as ‘go up one level’ (the
..), then go down into a folder called
desktop, and then to the file called
.(single not double dot) is just the short cut for the current directory. So
./readme.docxsimply means the file called
readme.docxin this directory. Seems pedantic but that’s computers for you!
You can see the path to any file or directory by right clicking and looking for properties (Windows), or using the ‘Get Info’ menu item (Mac OS X).
Set-up a ‘projects’ directory somewhere, of your choosing, on your computer. Create a project called ‘ds4d-course’, and within it create separate folders called notes, data, code, and temp (for temporary).
Have a quick look at the Software Carpentry lesson on files and directories.