// File: /workspace/github_c_makefile_star2_O2/olcaytaner[P]Isell/tests.c
// Function: ttest
int ttest(char **files, int *which, double confidence, double *real_confidence)
{
 /*Last Changed 02.02.2004 added safemalloc*/
 /*One Tailed Test for H0: mu1 <= mu2 H1: mu1 > mu2*/
 /*Two Tailed Test for H0: mu1 = mu2 H1: mu1 != mu2*/
 /*confidence = 0.95 for alpha = 0.05, confidence = 0.99 for alpha = 0.01 etc.*/
 /*Last Changed 12.02.2002*/
 int i, j, counts[2], df;
 double means[2], **observations, sse = 0.0, nom, denom, upper, lower;
 observations = read_observations_for_two_file(files, counts);
 if (!observations)
  {
   *real_confidence = 0.5;
   return 0;
  }
 for (i = 0; i < 2; i++)
  {
   means[i] = 0.0;
   for (j = 0; j < counts[i]; j++)
     means[i] += observations[i][j];
   means[i] /= counts[i];
  }
 if (means[0] > means[1])
   (*which) = 1;
 else
   (*which) = 2;
 if (!get_parameter_o("accuracy")) 
   (*which) = 3 - (*which);       
 for (i =  0; i < 2; i++)
   for (j = 0; j < counts[i]; j++)
     sse += pow(observations[i][j] - means[i], 2);
 free_2d((void**)observations, 2);
 denom = sqrt(sse);
 df = counts[0] + counts[1] - 2;
 nom = (means[0] - means[1]) * sqrt((counts[0] * counts[1] * df) / (counts[0] + counts[1] + 0.0));
 (*real_confidence) = 1 - t_distribution(nom / denom, df);
 if (get_parameter_i("tailed") == 1)
  {
   upper = t_distribution_inverse(1 - confidence, df);
   if ((nom / denom) < upper)
     return 0;
   else
     return 1;
  }
 else
  {
   upper = t_distribution_inverse((1 - confidence) / 2, df);
   lower = -t_distribution_inverse((1 - confidence) / 2, df);
   if ((nom / denom) > lower && (nom / denom) < upper)
     return 0;
   else
     return 1;
  }
}

// Assembly:
pushq %rbp
pushq %r15
pushq %r14
pushq %rbx
subq $0x48, %rsp
movq %rdx, %rbx
movsd %xmm0, 0x30(%rsp)
movq %rsi, %r15
leaq 0x8(%rsp), %rsi
callq 0x89dc2
testq %rax, %rax
je 0x8db62
movq %rax, %r14
xorl %eax, %eax
cmpq $0x2, %rax
je 0x8dabe
movl 0x8(%rsp,%rax,4), %ecx
testl %ecx, %ecx
movl $0x0, %edx
cmovgl %ecx, %edx
xorpd %xmm0, %xmm0
xorl %esi, %esi
cmpq %rsi, %rdx
je 0x8daab
movq (%r14,%rax,8), %rdi
addsd (%rdi,%rsi,8), %xmm0
movsd %xmm0, 0x20(%rsp,%rax,8)
incq %rsi
jmp 0x8da92
cvtsi2sd %ecx, %xmm1
divsd %xmm1, %xmm0
movsd %xmm0, 0x20(%rsp,%rax,8)
incq %rax
jmp 0x8da78
movsd 0x20(%rsp), %xmm0
movsd 0x28(%rsp), %xmm1
xorl %eax, %eax
movapd %xmm0, 0x10(%rsp)
movsd %xmm1, (%rsp)
ucomisd %xmm1, %xmm0
setbe %al
incl %eax
movl %eax, (%r15)
leaq 0xdf42(%rip), %rdi      # 0x9ba2c
callq 0x4cff1
testl %eax, %eax
jne 0x8dafc
pushq $0x3
popq %rax
subl (%r15), %eax
movl %eax, (%r15)
xorpd %xmm1, %xmm1
xorl %eax, %eax
xorl %ecx, %ecx
cmpq $0x2, %rcx
je 0x8db3b
movl 0x8(%rsp,%rcx,4), %edx
testl %edx, %edx
cmovlel %eax, %edx
xorl %esi, %esi
cmpq %rsi, %rdx
je 0x8db36
movq (%r14,%rcx,8), %rdi
movsd (%rdi,%rsi,8), %xmm0
subsd 0x20(%rsp,%rcx,8), %xmm0
mulsd %xmm0, %xmm0
addsd %xmm0, %xmm1
incq %rsi
jmp 0x8db15
incq %rcx
jmp 0x8db04
pushq $0x2
popq %rsi
movq %r14, %rdi
movsd %xmm1, 0x40(%rsp)
callq 0x34fc3
movsd 0x40(%rsp), %xmm0
xorpd %xmm4, %xmm4
ucomisd %xmm4, %xmm0
jb 0x8db76
sqrtsd %xmm0, %xmm3
jmp 0x8db83
movabsq $0x3fe0000000000000, %rax # imm = 0x3FE0000000000000
movq %rax, (%rbx)
xorl %eax, %eax
jmp 0x8dc7a
callq 0x4300
xorpd %xmm4, %xmm4
movapd %xmm0, %xmm3
movapd 0x10(%rsp), %xmm2
movl 0x8(%rsp), %eax
movl 0xc(%rsp), %ecx
leal (%rcx,%rax), %edx
leal (%rcx,%rax), %ebp
addl $-0x2, %ebp
imull %eax, %ecx
imull %ebp, %ecx
cvtsi2sd %ecx, %xmm0
cvtsi2sd %edx, %xmm1
subsd (%rsp), %xmm2
divsd %xmm1, %xmm0
ucomisd %xmm4, %xmm0
jb 0x8dbbd
sqrtsd %xmm0, %xmm0
jmp 0x8dbd8
movapd %xmm2, 0x10(%rsp)
movsd %xmm3, (%rsp)
callq 0x4300
movsd (%rsp), %xmm3
movapd 0x10(%rsp), %xmm2
mulsd %xmm0, %xmm2
divsd %xmm3, %xmm2
movapd %xmm2, 0x10(%rsp)
movapd %xmm2, %xmm0
movl %ebp, %edi
callq 0x1e9ba
movsd 0x7927(%rip), %xmm1     # 0x95520
subsd %xmm0, %xmm1
movsd %xmm1, (%rbx)
leaq 0xe9d7(%rip), %rdi      # 0x9c5df
callq 0x4cd35
movsd 0x790b(%rip), %xmm0     # 0x95520
subsd 0x30(%rsp), %xmm0
cmpl $0x1, %eax
jne 0x8dc32
movl %ebp, %edi
callq 0x1ea02
ucomisd 0x10(%rsp), %xmm0
setbe %al
jmp 0x8dc7a
mulsd 0x80e6(%rip), %xmm0     # 0x95d20
movsd %xmm0, (%rsp)
movl %ebp, %edi
callq 0x1ea02
movapd %xmm0, 0x30(%rsp)
movsd (%rsp), %xmm0
movl %ebp, %edi
callq 0x1ea02
xorpd 0x8570(%rip), %xmm0     # 0x961d0
movapd 0x10(%rsp), %xmm1
cmpnltpd %xmm1, %xmm0
cmpnltpd 0x30(%rsp), %xmm1
orpd %xmm0, %xmm1
movd %xmm1, %eax
movzbl %al, %eax
andl $0x1, %eax
addq $0x48, %rsp
popq %rbx
popq %r14
popq %r15
popq %rbp
retq