How to resolve the issue of R language not displaying o…

If R language is not displaying the running results, it could be due to several reasons.

1. The statement did not execute properly: please check for errors such as spelling mistakes, missing quotation marks, or mismatched parentheses.
2. The results are stored in a variable: some functions will store their return values in a variable instead of directly printing them to the console. You can try saving the result to a variable and then checking its value.
3. Output has been hidden: Sometimes, R language may hide long output results, only displaying a portion. You can try using the print() function or cat() function to show all results.
4. The graphics device is turned off: If you have plotted a graph in R language but the graphics device is turned off, you may not see the graphical output. You can try using the dev.off() function to reopen the graphics device.
5. Error occurred during the program runtime: If an error occurs during the program execution, it may result in the output not being displayed. You can use the try() function to catch errors and view error information.

If none of the above methods work, it is recommended to restart R and rerun the code, or try running the code in a different R environment to see if the results can be displayed correctly.