Good Afternoon,
I'm trying to generate a very simple Kaplan-Meier plot with necropsy day and date. I'm using the survival tab but the graph appears as if there are 3 animals remaining at the 86d time point and the graph starts at 0.8 not 1.
Please assist. I know this is probably something very simple but I have tried for over a day and cannot figure out how to fix it! The data is attached. There are only 6 time points and one condition. I would like the post-exposure necropsy day and date to appear on the same graph but it's not a necessity.
Thank you in advance. Everyone here is always so kind!
double click the x axis
maybe try editing the axis format when using the date column.
the min and max of the axis can be set here too
for a survival plot (Analyze>Reliability>Survival)
the grouping variable would be your animal group. (verify there are three distinct labels, no typos, or case changes, or leading/trailing spaces)
if some animals made it to day 100 when the study ended, then add a new colunm for censor. animals who survived are "1" and wuzzies are "0". Or use a single row for the fuzzies, and freq col for the number that survived.
the graph has a single x axis, so either date or day, but not sure how to get both without some wackyness.
It would be helpful to me if you can attach the output of your analysis, and point out the numbers (e.g. 3, 0.8) in the results.
I guess the question on the value 0.8 is related to midpoint adjustment, but I cannot be sure without seeing what you mean.