Learning R: Writing Functions & More

In summary, the conversation is about using the R language to write functions for manipulating strings. The person is looking for help evaluating the number of A, T, G, and C in a given string and is struggling with using if/else statements.
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Tereno
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0
Does anyone know how to use the R language to write functions and etc?
 
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  • #2
  • #3
Yeah I kinda did..and not to clear about it.
 
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R programmation

Does anyone know how to use the R language to write functions for string?

I have this type of string:

ATGTTGCGTGTC

I want to evalute the number of A or T and G and C for every A/T a want to sum 2 for the other 4 I want to have one number...
did you have any suggestion? because with If else I have difficultis
Thanks for any help
 

FAQ: Learning R: Writing Functions & More

What is R and why is it useful for scientists?

R is a programming language and software environment commonly used for statistical computing and graphics. It is useful for scientists because it allows for efficient data analysis, visualization, and modeling, making it an important tool for research and decision making.

What are functions in R and how can they be helpful?

Functions in R are blocks of code that can be used to perform specific tasks. They can be helpful because they allow for a more organized and modular approach to programming, making it easier to reuse code and perform complex operations.

How can I write my own functions in R?

To write your own function in R, you can use the "function()" keyword followed by the function name, input parameters, and the code to be executed. It is important to have a clear understanding of the task at hand and the desired output before writing a function.

What are some common mistakes to avoid when writing functions in R?

Some common mistakes to avoid when writing functions in R include using the wrong syntax, not properly defining input parameters, not including a return statement, and not testing the function with different input values. It is also important to use meaningful and descriptive names for functions and variables.

How can I improve my skills in writing functions in R?

To improve your skills in writing functions in R, you can practice by attempting different coding challenges, reading and studying code written by experienced programmers, and seeking feedback from others. You can also refer to resources such as online tutorials, books, and forums for tips and guidance.

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