R debugging: “only 0’s may be mixed with negative subscripts”

The problem: actionlist$RPos[1000] has a value of 21. n1 ranges from -31 to 0. When you add them you get a vector with a mix of positive and negative values, which isn’t allowed in subsetting.

How I got there: First check traceback():

traceback()
5: `[.data.frame`(z, actionlist$RPos[i] + n1, j) at #8
4: z[actionlist$RPos[i] + n1, j] at #8
3: is.data.frame(x) at #8
2: cor(z[actionlist$RPos[i] + n1, j], x[, j]) at #8
1: GetTopN(10)

This tells me the problem is in actionlist$RPos[i] + n1 most likely. Then I just added a simple print(i) statement to tell me which iteration was the problem. (Alternatively, you could probably have just checked actionlist$RPos + n1 for trouble spots manually.

Related Posts:

  1. Is it possible to “decompile” a Windows .exe? Or at least view the Assembly?
  2. How can I write to the console in PHP?
  3. Paused in debugger in chrome?
  4. Check if object exists in JavaScript
  5. Fixing Segmentation faults in C++
  6. What is between ESP and EBP?
  7. How do I debug “Error: spawn ENOENT” on node.js?
  8. Swift: print() vs println() vs NSLog()
  9. What is a stack trace, and how can I use it to debug my application errors?
  10. What do I do when my program crashes with exception 0xc0000005 at address 0?
  11. Ran Pycharm debug which ended with exit code -1
  12. What is w3wp.exe?
  13. How to track down a “double free or corruption” error
  14. How to track down a “double free or corruption” error
  15. Chrome: Uncaught SyntaxError: Unexpected end of input
  16. wntdll.pdb not loaded – Can’t see the exception
  17. Unfortunately MyApp has stopped. How can I solve this?
  18. wntdll.pdb not loaded – Can’t see the exception
  19. Unfortunately MyApp has stopped. How can I solve this?
  20. PHP parse/syntax errors; and how to solve them
  21. Visual Studio debugger error: Unable to start program Specified file cannot be found
  22. Remote debugging a Java application
  23. How can I use adb over WiFi?
  24. Undefined reference to class constructor, including .cpp file fixes
  25. How to use gdb with pipes and stdin
  26. How do I remedy “The breakpoint will not currently be hit. No symbols have been loaded for this document.” warning?
  27. Is there a built-in function to print all the current properties and values of an object?
  28. Console.log not working at all
  29. General way of solving Error: Stack around the variable ‘x’ was corrupted
  30. Connecting to Git team provider failed
  31. Debug assertion failed
  32. Debug Assertion Failed: _CrtIsValidHeapPointer(block)
  33. Adding message to assert
  34. What’s the difference between nexti and stepi in gdb?
  35. What is the purpose of the vshost.exe file?
  36. Eclipse java debugging: source not found
  37. Valgrind complains with “Invalid write of size 8”
  38. Source information missing from the debug information for this module – PDB successfully loaded
  39. JavaScript console.log causes error: “Synchronous XMLHttpRequest on the main thread is deprecated…”
  40. Is there a good Valgrind substitute for Windows?
  41. Undefined reference to class constructor, including .cpp file fixes
  42. How do I debug a stand-alone VBScript script?
  43. In which cases does program exit with 0x40010004 code?
  44. What is a “first chance exception”?
  45. gdb: No symbol “i” in current context
  46. GDB no such file or directory
  47. How to see stdout of ansible commands?
  48. How to make bash scripts print out every command before it executes?

Leave a Comment