Determining which diagnosis rooms are most effective

[MandrakeHorse]

The purpose of this discussion is to determine which diagnosis rooms are the most effective at diagnosing patients.

Thanks to @mugmuggy's investigations for #1303 (comment), it was discovered that the calculation for diagnosis progress includes a "room factor". Each type of diagnosis room can apply a small or large bonus/penalty to progress depending on the patient's illness. Some of these modifiers make logical sense (such as X-rays being ineffective with Invisible patients or psychiatrists not being able to understand patients with Slack Tongue) while others seem more arbitrary. The table of room bonuses is reproduced below and includes a row for the total sum of all these modifiers (including that of the unfinished Alien DNA disease):

Disease	Scanner	Blood	Cardio	Xray	Ultra	General	Ward	Shrink
BLOATY_HEAD	400	0	0	0	0	0	200	0
HAIRYITUS	200	0	0	0	0	0	400	0
ELVIS	0	0	0	0	0	0	200	400
INVIS	0	400	0	-200	0	0	0	0
RADIATION	-200	400	0	-400	0	0	0	0
SLACK_TONGUE	400	0	200	0	0	0	0	-200
ALIEN	200	400	0	200	200	0	0	-400
BROKEN_BONES	0	0	200	400	0	0	0	0
BALDNESS	0	400	0	0	0	0	200	-200
DISCRETE_ITCHING	0	400	0	0	0	0	0	0
JELLYITUS	0	0	0	0	0	400	0	0
SLEEPING_ILLNESS	400	0	0	0	0	0	200	0
PREGNANT	0	0	0	0	0	0	0	0
TRANSPARENCY	0	0	0	0	0	0	400	0
UNCOMMON_COLD	0	0	0	0	0	400	0	0
BROKEN_WIND	0	0	0	0	400	0	0	0
SAPRE_RIBS	0	0	0	400	0	0	0	0
KIDNEY_BEANS	0	0	0	200	400	0	0	0
BROKEN_HEART	0	0	400	0	200	0	0	0
RUPTURED_NODULES	400	0	0	0	200	0	0	0
MULTIPLE_TV_PERSONALITIES	0	0	0	0	0	0	0	400
INFECTIOUS_LAUGHTER	0	200	0	0	0	0	0	400
CORRUGATED_ANKLES	0	0	400	0	0	0	0	0
CHRONIC_NOSEHAIR	400	0	0	0	0	0	200	0
3RD_DEGREE_SIDEBURNS	0	0	0	0	0	0	0	400
FAKE_BLOOD	0	400	0	0	0	0	0	0
GASTRIC_EJECTIONS	0	0	0	0	0	0	400	0
THE_SQUITS	0	0	0	0	0	400	200	0
IRON_LUNGS	200	0	0	400	0	0	0	0
SWEATY_PALMS	0	0	-400	0	0	0	0	400
HEAPED_PILES	0	0	0	0	0	0	400	0
GUT_ROT	0	0	0	0	400	0	0	0
GOLF_STONES	0	0	0	200	400	0	0	0
UNEXPECTED_SWELLING	400	0	0	0	0	0	0	0
TOTAL	2800	2600	800	1200	2200	1200	2800	1600

By considering the room factor alone, we can see that the largest bonuses to diagnosis progress are provided by the Scanner and (perhaps somewhat counter-intuitively) the Ward. This is closely followed by the Blood Machine, then Ultra Scanner, Psychiatric Room, then General Diagnosis and X-ray, and then finally Cardio in last place. This generally supports the argument that the more advanced/expensive diagnostic rooms are generally better at diagnosing patients, since these rooms provide the most bonuses to diagnosis progress and have little-to-zero chance of penalty.