gistfile1.j

var sexLabel = [[CPTextField alloc] initWithFrame: CGRectMake(40, 430, 100, 30)];
  	[sexLabel setStringValue:"Sex:"];
		[sexLabel setTextColor: [CPColor colorWithHexString:"FFFFFF"]];
		[sexLabel sizeToFit];
		[self addSubview:sexLabel];

		maleRadioButton = [CPRadio radioWithTitle: "Male"];
		femaleRadioButton = [CPRadio radioWithTitle: "Female"];
		otherRadioButton = [CPRadio radioWithTitle: "Other"];
		
		radioGroup = [maleRadioButton radioGroup];
		[femaleRadioButton setRadioGroup:radioGroup];
		[otherRadioButton setRadioGroup:radioGroup];

		[maleRadioButton setFrameOrigin:CGPointMake(100, 430 )];
		[femaleRadioButton setFrameOrigin:CGPointMake(CGRectGetMaxX([maleRadioButton frame]) + 8, CGRectGetMinY([maleRadioButton frame]))];
		[otherRadioButton setFrameOrigin:CGPointMake(CGRectGetMaxX([femaleRadioButton frame]) + 8, CGRectGetMinY([femaleRadioButton frame]))];

		[self addSubview:maleRadioButton];
		[self addSubview:femaleRadioButton];
		[self addSubview:otherRadioButton];

I'll assume self is a CPView subclass.