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© 2004, 2005 by
Chih Long Liu

Walkthrough TMA-Combiner - 4

The Output File

After the TMA-Combiner has completed its operation, you will find yourself back at the main screen of the TMA-Combiner (at the "Control") worksheet. The output file should be located in the same working directory. When you open it, you will find that the file is still in PCL format, such as in the example below:

combined output

Click
on the image for a larger view of the picture.

You will immediately notice that if your aggregate dataset contained replicate cores, there is now only one unique entry to represent each combined set of cores, and that such an entry will have a number in parenthesis preceding the rest of the entry. In the "NAME" column, the core descriptor will appear like the example below:

(2)10 | SS | monophasic | gr 3 | pelvis |

where the original descriptor in your input dataset would have been as follows:

10 | SS | monophasic | gr 3 | pelvis |

The (2) indicates that the case 106 entry in the combined dataset contains the combined score derived from up to 2 replicate cores. This is also true for antibodies - in the example above, if bcl2 had been combined from two different bcl2 scores, the column header would appear as (2)bcl2.

Core and antibody replicates that occur only once in the aggregate dataset, however, will appear in the combined output file unchanged, and they will not have a preceding number in parenthesis. If you notice some antibody replicates that unexpectedly remained uncombined, you may want to go back and double-check to ensure that your files fulfill the file format requirements.

The other major change you will notice is the format of the entries in the UID column. Here, the jpg filenames corresponding to the three replicate cores are present here, as well as all antibody names for which a score was available in the uncombined dataset. The corresponding UID entry for the example case 10 is shown below:

1_19_1_4_14_1040_43.jpg*1_19_2_4_14_1040_42.jpg!10!cam5.2!pankeratin!ck7!ema!o13(cd99)!...

(not all of the UID entry is shown, for sake of brevity; the important section that has changed from the uncombined dataset is shown above in red text)

The significance of the modifications in the formatting of the UID column information will be covered in more detail in the Stainfinder update section. For those of you who do not use Stainfinder, you may safely disregard the information in this column.

Cluster and TreeView

For clustering analysis and visualization under TreeView, you may treat this output file as you would with any other PCL-format output file generated by the TMA-Deconvoluter. The combined datasets should not appear significantly different from the uncombined data, save for the differences in the data deriving from the score combination process. There are two exceptions - one when Rule 2 score combining is performed - in this case, you may notice additional, intermediate color gradations between the colors shown in the standard score key, such as in the example below. This is to be expected and should be interpreted at face value.

combined output rule 2

The other exception occurs when you combine multiple TMA datasets together when there is very little overlap. Under such a situation, the heatmap in TreeView will display large regions of gray, indicating the lack of overlap. An example of this is shown below.

TreeView - low overlap

If you do not know how to use Cluster and TreeView, please refer to the Deconvoluter Walkthrough - Step 3.

You may now browse your dataset for additional analysis. If you use Stainfinder and wish to use it to view combined TMA datasets, proceed to the Stainfinder update section, which begins on the next page.

back to top

Back to Step 3
Stainfinder - update section

Return to the walkthrough overview page.


Last edited by Chih Long Liu on August 15, 2005