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POObjective-C NSMutableArray:removeObjectsInRange
 

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    <p>I have a NSMutableArray called rawData of size 198792. Each index contains an NSObject called DataSet. The interface for a DataSet is as follows:</p> <pre><code>@interface DataSet : NSObject { NSNumber *rightFoot; NSNumber *leftFoot; } </code></pre> <p>I am trying to trim down the rawData using the following line of code:</p> <pre><code>[rawData removeObjectsInRange:NSMakeRange(0, StartTime*freq-1)]; </code></pre> <p>where StartTime*freq-1 = 11799.</p> <p>I am getting an error during runtime: <strong>* Terminating app due to uncaught exception 'NSRangeException', reason: '*</strong> -[NSMutableArray objectAtIndex:]: index 198791 beyond bounds [0 .. 186992]'</p> <p>Thank you for any help!</p> <p>EDIT: stack trace</p> <pre><code>2012-02-16 17:59:31.671 fwd_analysis[8154:207] *** Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[NSMutableArray objectAtIndex:]: index 198791 beyond bounds [0 .. 186992]' *** Call stack at first throw: ( 0 CoreFoundation 0x00dc25a9 __exceptionPreprocess + 185 1 libobjc.A.dylib 0x00f16313 objc_exception_throw + 44 2 CoreFoundation 0x00db80a5 -[__NSArrayM objectAtIndex:] + 261 3 fwd_analysis 0x00002a99 -[fwd_analysisViewController startButtonPressed:] + 252 4 UIKit 0x002b24fd -[UIApplication sendAction:to:from:forEvent:] + 119 5 UIKit 0x00342799 -[UIControl sendAction:to:forEvent:] + 67 6 UIKit 0x00344c2b -[UIControl(Internal) _sendActionsForEvents:withEvent:] + 527 7 UIKit 0x003437d8 -[UIControl touchesEnded:withEvent:] + 458 8 UIKit 0x002d6ded -[UIWindow _sendTouchesForEvent:] + 567 9 UIKit 0x002b7c37 -[UIApplication sendEvent:] + 447 10 UIKit 0x002bcf2e _UIApplicationHandleEvent + 7576 11 GraphicsServices 0x0171a992 PurpleEventCallback + 1550 12 CoreFoundation 0x00da3944 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52 13 CoreFoundation 0x00d03cf7 __CFRunLoopDoSource1 + 215 14 CoreFoundation 0x00d00f83 __CFRunLoopRun + 979 15 CoreFoundation 0x00d00840 CFRunLoopRunSpecific + 208 16 CoreFoundation 0x00d00761 CFRunLoopRunInMode + 97 17 GraphicsServices 0x017191c4 GSEventRunModal + 217 18 GraphicsServices 0x01719289 GSEventRun + 115 19 UIKit 0x002c0c93 UIApplicationMain + 1160 20 fwd_analysis 0x00002758 main + 102 21 fwd_analysis 0x000026e9 start + 53 ) terminate called after throwing an instance of 'NSException' Current language: auto; currently objective-c Program received signal: “SIGABRT”. </code></pre>
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    1. COYou need to post the stack trace of your exception, and you need to post the code where the exception is occurring. To do that, you need to [create an exception breakpoint](http://stackoverflow.com/questions/4961770/run-stop-on-objective-c-exception-in-xcode-4).
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    2. CO@robmayoff I posted the stack trace and the code where the exception is occuring is: [rawData removeObjectsInRange:NSMakeRange(0, StartTime*freq-1)];
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