Displaying 2 results from an estimated 2 matches for "sd_b".
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sd0b
2010 Aug 25
1
Estimate average standard deviation of mean of two dependent groups
...However for the standard deviation this seems more tricky as it is to assume
that standard deviations in A & B correlate. I assume (based on further
analysis) a correlation of r =0.5.
I found the formula to get the standard deviation of the SUM (not the mean)
of two variables:
SD=SQRT(SD_A^2 + SD_B^2 + 2*r*SD_A*SD_B)
with SD_B and SD_B being the standard deviation of A and B. And r*SD_A*SD_B
being the covariance of A and B.
Would this formula also be valid if I want to average (and not sum) my two
variables?
Many thanks for any help & best wishes,
Jokel
[[alternative HTML version del...
2010 Aug 16
1
[LLVMdev] [PATCH] fix "32-bit shift" warning in MSVC
...Index: lib/MC/MachObjectWriter.cpp
===================================================================
--- lib/MC/MachObjectWriter.cpp (revision 111120)
+++ lib/MC/MachObjectWriter.cpp (working copy)
@@ -769,7 +769,7 @@
IsPCRel = 1;
FixedValue = (FixupAddress - Layout.getSymbolAddress(SD_B) +
Target.getConstant());
- FixedValue += 1 << Log2Size;
+ FixedValue += static_cast<uint64_t>(1) << Log2Size;
} else {
FixedValue = 0;
}
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