It means assign. the right hand side of this symbol is assigned to the left hand side. Programmers prefer to use this than “=” as it is less confusing. It is a special meaning in the R programming, so that for instance you can assign an old data set to a new one, with a few changes. You can also assign the output from a plot, a t test, ANOVA, or a linear model to a named R object.
Start the line with a hash (#) in the Source Panel. A commented line is to help you understand the program, and is not a functioning line for R functions and calculations. Commenting is really useful as if you return to the program a few months later you will understand and remember what you were doing.
WE are planning that each module will take between 6 and 10 hours depending on your existing skills with the concepts and working with the programming language. However it is also a resource that you can dip into for particular aspects of agricultural research. How do I layout, collect data from and analyse a Randomised Complete Block Design experiment.
[code language=”r”]colour <- c(“blue”, “green,”red”, “yellow”)[/code]
[code= language=”r”]numbers <- c(2,3,4,5,6,7,8)[/code]
This can be seen as c for combine, and the items (numbers) are placed in brackets, separated by commas. If the items are text or characters we use quotes.
This table should assist you: (download by clicking the blue and have the table as a checklist)
What is the best way to go through Module 0
Install R and RStudio. Actually install R and RStudio. After
watching the Screencasts (videos). If you are not successful ask for help, by contacting us.
| Steps |
What to do |
Check completed |
| Complete the introductory questions |
Start at the top of the Module |
|
| Install R if you have not yet got it on your computer. Simple Introduction – using R |
Watch the Installation video (module 1) |
|
| Introduction to RStudio and simple calculations. Introduction to using R and RStudio |
Watch the Simple Introduction to R as video |
|
| Demonstration |
Run through the demonstration |
|
| Example to work yourself |
Run through the example for yourself |
|
| Review the basics principles |
Look at a PowerPoint of simple statistics revision |
|
| Run the next demonstration |
Run through the demonstration |
|
| Read about the statistical method |
Check you are comfortable with its use |
|
| Try the short assessment |
Did you feel you understood this? |
|
| Send some feedback to us using the contact |
What else would help you? Do you have a similar data set you would like help with ? |
Because we cannot anticipate all the questions. We wish this to improve and it will improve and grow when you ask us a question by using the feedback. Please ask one now?
The value of a variable can be re-scaled to have come from a distribution with a mean of zero and a standard deviation of one.
Yes there are pages of definitions.
click here.
Take a look at a pdf in this in
Module. click here.
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