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Hi I wonder if anyone can suggest a way of looking at the impacts of various factors (eg habitat, climatic zone, analysis method, minimum particle detection size) on the sampled microplastic densities? My data is already summarised as mean and...
I have collected data from 300+ studies on microplastic densities in rivers, I would like to investigate how they vary numeric variables (population density, Average GDP, plastic production) and categorical variables (vegetated/non-vegetated, continent, ecoregion, climatic zone). However, when...
Dear All I wonder if some one can help. I am using metamean to determine with of my habitats have the most microplastics, I have collected 400+ papers with means, SD and sample number.Using the command:-metamean(MP_global...
Dear Michael Apologies, the list is copied in now. Yes I was under the illusion that metamean could only handle a single factor, I have struggled for so long trying to find a way to do it but my knowledge...
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