This image is provided as another way of looking at Pomelo's results.
Each row is a gene and each column is a sample.
Rows are ordered by increasing adjusted p-value. First row corresponds to the row with the
smallest adjusted p-value according to Pomelo's results, next one is the second lower adjusted p-value and so
on.
Columns are ordered by classes in alphabetical order.
If you have a row with the names of columns, that row must start with "#name".
For example:
Adjusted p-value and FDR indep. value (adjusted p-value using the FDR procedure of
Benjamini & Hochberg), are shown at the start of each row. See
Pomelo's help (Results file section) for details.
Once the first image is displayed, you can generate as many images as you want by filling the form that is
under the image. New images will be displayed in a new window.
If the data you are working with is not standardized, you must answer "yes" in the checkbox "Do you want
to standardize your data?"
in order to normalize it. By default your data will not be standardized.
If you choose to standardize you data, our standarization will transform your data to mean 0 and standard deviation 1. See next for details.
If you decided not to standardize your data, the scale units will be your data units.
For example, if your data are in log (base 2) of the ratios, the scale will be in the same units.
This means that a value of +3 (strongest red) is eigth times more than a value of 0.
Otherwise, if you decide to standardize your data, the scale will be presented in sigma units.
The scale limits can be selected between ±3, ±2 or ±1. Any values, either standardized or not, higher or lower than
those limits will be shown as the highest or lowest value respectively.
Any missing value will be shown as a white rectangle in the image.
The number of rows displayed by default is 50. If you want to see more rows, you have to fill
in the text box "Select number of lines to show". Due to browser restrictions, images with
more than 650 rows will not be shown. In these cases you will find a link to download the
image (save link as) to your computer where you will be able to see it with a common image
viewer.
If you have any question or comment, send Juanma an email.
1. Image
#name g1 g2 g1 g1 g2
gene1 23.4 45.67 6 85.6
genW@ 34 23 13
genX# 23 44 25.6 29.4 13.2
2. Standardization
3. Scale
4. Missing values
5. Rows
6. Comments
Last modified: Fri Mar 07 18:49:22 CET 2003