Severity: Warning
Message: fopen(/home/answnniz/public_html/system/sessions/ci_session0edb041d7faf3690cdba77abe34c843304f59bff): failed to open stream: Disk quota exceeded
Filename: drivers/Session_files_driver.php
Line Number: 176
Backtrace:
File: /home/answnniz/public_html/index.php
Line: 315
Function: require_once
Severity: Warning
Message: session_start(): Failed to read session data: user (path: /home/answnniz/public_html/system/sessions)
Filename: Session/Session.php
Line Number: 143
Backtrace:
File: /home/answnniz/public_html/index.php
Line: 315
Function: require_once
What does the third-variable problem indicate? The correlation between any two of the variables must be established before another correlation can be computed. Changes in one variable are producing changes in another variable. The three viriables are all causaly related to one another; each is a cause of the others. Two of the variables are correlated with each other only because each is causally related to a third variable.