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This repository have two different exercises in erlang:
**1.Decision tree that maximizes the optimal point and consequently provides decision support based on the assumptions provided.**
**1.Decision tree that maximizes the optimal point and consequently provides decision support based on the given assumptions.**
* The probability of making a medication/treatment 1 and use is OK of 42%;
* One possibility of making a medication/treatment 1 and of the user staying KO is 22.5%;
* The probability of making a medication/treatment 1 and is not conclusive is 35.6%;
* The probability of making a medication/treatment 2 and staying OK is 62%;
* The probability of making a medication/treatment 2 and getting KO is 38%.
* The probability of taking medication/treatment 1 and the user being OK is 42%;
* The probability of taking medication/treatment 1 and the user becoming KO is 22.5%;
* The probability of taking medication/treatment 1 and it not being conclusive is 35.6%;
* The probability of taking medication/treatment 2 and being OK is 62%;
* The probability of taking a medication/treatment 2 and getting KO is 38%.
```
@ -52,13 +52,13 @@ doAll() ->
**2.There are ways to get the probabilities knowing certain parameters (they do not indicate the optimal point, but calculate a probability of success depending on the existing resources) - using the baysian networks.**
**2. There are ways of obtaining probabilities knowing certain parameters (they don't indicate the optimum point, but calculate a probability of success depending on the existing resources) - using Baysian networks.**
What is the probability of giving the patient M2 and is OK, knowing that:
What is the probability of giving the patient M2 and the patient being well, knowing that:
* The probability of administering M1 and the patient is OK is 20%;
* The probability of administering M2 knowing that I administered M1 and the patient being OK is 70%;
* The probability of administering M2 knowing that I did not administer M1 and the patient is OK of 20%.
* The probability of administering M1 and the patient being well is 20 per cent;
* The probability of administering M2 knowing that I have administered M1 and the patient is well is 70%;
* The probability of administering M2 knowing that I have not administered M1 and the patient is OK is 20 per cent.
### Prerequisites
@ -69,12 +69,12 @@ Basic knowledge of erlang, algorithm and statistics.
### Install or use Docker
If you prefer install the erlang compiler, please search for the appropriate installation for your OS.
If you prefer to install the erlang compiler, please find the appropriate installation for your operating system.
If you prefer you can use Docker to test this solution.
If you prefer, you can use Docker to test this solution.
Get a [docker container](https://hub.docker.com/search?q=erlang&type=image) and start the container.
I suggest [this container](https://hub.docker.com/r/bitwalker/alpine-erlang) and run:
I suggest [this container](https://hub.docker.com/r/bitwalker/alpine-erlang) and run it:
```
docker pull bitwalker/alpine-erlang
@ -86,15 +86,15 @@ docker run --rm -it --user=root bitwalker/alpine-erlang
1. For the first exercise (Decision Tree):
```
c(engine).
engine:doAll().
c(motor).
motor:doAll().
```
and the best solution is:
![alt text](https://i.postimg.cc/mg5dTMyB/Captura-de-ecr-2019-04-09-s-13-05-46.png)
** You can do a medication 1 and medication 2 of 97.6% of success to be OK.**
** You can take medication 1 and medication 2 with a 97.6 per cent success rate to get well.
@ -103,16 +103,16 @@ and the best solution is:
2. For the second exercise (Baysian Networks):
```
c(engine3).
engine3:getp({m2, ok}).
c(motor3).
motor3:getp({m2, ok}).
```
![alt text](https://i.postimg.cc/QxBm0Vrz/Captura-de-ecr-2019-04-09-s-15-57-38.png)
**There is a 16% chance that the patient will be OK administering the drug M2.**
**There is a 16 per cent chance that the patient will be OK when administering drug M2.
## Built With
## Created with
* erlang - https://www.erlang.org;
@ -122,13 +122,12 @@ Please read [CONTRIBUTING.md](CONTRIBUTING.md) for details on my code of conduct
## Versioning
I use [SemVer](http://semver.org/) for versioning. For the versions available, see the [tags on this repository](https://gitlab.andrealmeida.net/public_projects/erlang-decision-tree/tags).
I use [SemVer](http://semver.org/) for versioning. For available versions, see [tags on this repository](https://gitlab.andrealmeida.net/public_projects/erlang-decision-tree/tags).
## Authors
[![Author](https://img.shields.io/badge/Author-André%20Almeida-blue.svg)](https://andrealmeida.net)
## License
This project is licensed under the MIT License - see the [LICENSE.md](LICENSE.md) file for details
## Licence
This project is licensed under the MIT licence - see the file [LICENSE.md](LICENSE.md) for more details.