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% Mortality distribution vs. time

Oct 3, 2018 6:54 AM
(1156 views)

Hell JMP Community,

I am writing to see if anyone has any suggestions for my analysis comparing mortality distributions between fly populations. I tested 4 doses at 4 time points and I would like to see how the proportion of losses varried over time between populations to understand variance in response to exposure at different levels.

Presently I have the table set up as the percent of total loss at each time for each cage in a univariate format and have been running it as X=Time, Y/response=%loss, GROUP=Population, and then fit curve => Quadratic. I then have been using BY=Dose to compare the distributions between population at the different doses.

Does anyone have any better suggestions for another ways to analize this dataset.

I appreciate any input- Joe

4 REPLIES 4

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Re: % Mortality distribution vs. time

@joemama985,

Joe,

Could you kindly provide a sample of your data and demonstrate what you are trying to do and achieve or share the script and the test data so the users in the community can reproduce and relate to what you are seeking ?

Best

Uday

Uday

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Re: % Mortality distribution vs. time

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Re: % Mortality distribution vs. time

Following on Dale's reply and the nature of your raw data, you could use a probit analysis. Set it up using Fit Model with the Generalized Linear Model personality, the binomial distribution, and the probit link function. Be sure to enter both data columns for the number that did not survive and the number tested in that order.

You can use any linear predictor you want, as is the case in any regression.

Learn it once, use it forever!