Set Up Predictive Analysis in Applicare on Linux

Step 1: Open up a command prompt or terminal then navigate to the Applicare home directory. 

Step 2: Create a directory named predictive_analysis in the Applicare home path and set the appropriate permission for this directory. 

chmod -R 777 <predictive_analysis>

Step 3:  Navigate to the predictive_analysis directory and create a file named rhel8.sh. Paste the following contents into that file and save it. Then set the appropriate permission for this file.

#!/bin/bash
export R_VERSION=4.2.0 
bash -c "$(curl -L https://rstd.io/r-install)"
ln -s /opt/R/${R_VERSION}/bin/R /usr/local/bin/R
ln -s /opt/R/${R_VERSION}/bin/Rscript /usr/local/bin/Rscript
chmod -R 777 pred.R

chmod +x rhel8.sh

Step 4: After executing the basch script. It should produce output similar to the example below. 

Step 5: Ensure that R is correctly installed and located. Execute the below command it.

which Rscript

The result should be "usr/local/bin/Rscript"

Apply step 6 ,7 and 8 only if you didn't get results on executing which R command.

Step 6:  If the results differ from the expected output, modify your .bashrc file to set the correct path for R:

vim ~/.bashrc   //OR THE PATH TO YOUR BASHRC FILE

Step 7: Once you are in the bashrc file, add the following line to your file:

export PATH=$PATH:/opt/R/4.2.0/bin/r --version

Step 8: Save and exit the file

Step 9: To verify that R was properly installed, type R in the terminal. You should see the R interface appear in the terminal or command prompt.

R should now be successfully installed and the Predictive Analysis program should be running in the background.

Step 10: Go to <Applicare_home_directory>\server\bin and edit the catalina.sh file.

-Dapplicare.rHomePathDir=<R_installed_path>

Enter the directory displayed after executing R in step 5, replacing the <R_installed_path> placeholder with this directory path .

Example

-Dapplicare.rHomePathDir=/usr/local/bin/Rscript