Microarray Data Analysis

Adaptive quantification

Copy tabulated data to the textarea as shown. First valid data must correspond to Column 1/Row 1. All lines preceding data for Column 1/Row 1 will be removed previous to calculations.

1

Parameters

Fill in the data to analyse, then run the computation.

2

Description

Computational procedure

1. For each spot, the following is computed for both channels (1 and 2): (value-background)*100/sum(value-background))

2. With previous results, ch1/ch2 and ch2/ch1 are computed

3. As there are several replicas for ch1/ch2 and ch2/ch1, median and its base 10 logarithm is computed.

4. In a table, medians and logs are represented. A color code is used to show over-expression (red) or under-expression (blue).