Expression Intensity Probes.Variable
From Array Suite Wiki
Gene Expression intensity
Shows the log2 normalized expression for the specified gene, organized by group (e.g. Primary Site).
When visualizing more than one gene, each gene is shown in its own plot.
X-axis shows log2 expression level. Y-axis shows the group.
filter gene expression by meta data
Use the Sample Tab to further filter the data using any associated sample/subject meta data.
After filtering by primary site:
Use Specify Profile (Task tab) to change the grouping.
Use Specify Split Column (Task tab) to change the automatic coloring.
Show Summary Information displays an on-the-fly p-value, indicating if the expression is significantly changed, of selected group (and split column) using Show Summary Information (Task Tab | Customize). This is calculated by an F-test for One-way or Two-way ANOVA (depending on sample grouping).
Probe level Expression intensity
Shows the log2 normalized probe set expression intensity, organized by group.
Calculate gene level expression from mapped probe level data
Since the expression data shown in above figure are log2 normalized. the gene level data is the mean of the linear-scale values.
- rise 2 to the power of a vector with all expression probe values;
- log2 transform the mean of all values get from (1);