On 12-May-11 15:15:00, 1Rnwb wrote:
> I have question about log2 transformation and performing mean
> on log2 data. I am doing analysis for ELISA data. the OD values
> and the concentration values for the standards were log2
> transformed before performing the lm. the OD values for samples
> were l
I have question about log2 transformation and performing mean on log2 data. I
am doing analysis for ELISA data. the OD values and the concentration
values for the standards were log2 transformed before performing the lm. the
OD values for samples were log2 transformed and coefficients of lm were
a
jarry hotmail.com> writes:
>
>
> Hi,
>
> I am reading an article in which, first, some given "p-results" are
> obtained, and, second, these are afterwards transformed and expressed as the
> "NEGATIVE base-10 logarithm of the p-value".
>
> My question is if anyone could indicate how is such t
Hi,
I am reading an article in which, first, some given "p-results" are
obtained, and, second, these are afterwards transformed and expressed as the
"NEGATIVE base-10 logarithm of the p-value".
My question is if anyone could indicate how is such transformation achieved
with R and how are they
Paul,
On Fri, Feb 6, 2009 at 3:25 PM, Paul Warren Simonin
wrote:
> Hello,
> I am writing regarding log transformation of data in a single matrix
> column, and subsequent use of these data in a glm model fit. I have a data
> matrix in which I am using the log function to transform the values. Th
Hello,
I am writing regarding log transformation of data in a single
matrix column, and subsequent use of these data in a glm model fit. I
have a data matrix in which I am using the log function to transform
the values. This transformation results in -Inf values in some places,
though. I
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