WebLogo: tests

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A working WebLogo implementation should pass all of these tests

Relative Entropy Test

The entropy should be 2 bits, 1 bit, 0 bits (The small sample correction should be turned off.)

Title And Labels Test

Replace and display x-label, y-label and title. (Also, try turning off "show x axis" and "show y axis", and changing the y-axis bits)

Format Test

Ensure that this logo can be created in each of the avaliable formats

Format: GIF (bitmap) PNG (bitmap) TIFF (bitmap) EPS (vector) PDF (vector)

Test Alphabetical Order

Each chracter in each stack has the same entropy. The letters should be alphabetized, top down. The entropy should be 2 bits, 1 bit, 0 bits (The small sample correction should been turned off.)

(NA)

(AA)

One Single Column

Should not die just because there is only 1 stack.

Small Sample Correction Test

The samples per column decrease from 32 (left) to 1 (right). Before the small sample correction the relative entropy of each stack is 2 bits. Since the errror bars are twice the SSC the top of each error bar should line up at 2 bits (less a very small margin.)

Errbar

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