Removing groups from Bland-Altman Plot

[Eli Omo]

Hi everyone,


Currently my Bland-Altman Plots is grouped by Ethnicity using this code.

Could anyone advise me how I could change the code to include all the data but not grouped.

local graphs
levelsof ETHNICITY, local(reps)
foreach r of local reps {
    summ difference1 if ETHNICITY == `r'
    local mean`r' = r(mean)
    local upper`r' = r(mean) + 1.96*`r(sd)'
    local lower`r' = r(mean) - 1.96*`r(sd)'
    graph twoway scatter difference1 avgclinichomes if ETHNICITY == `r', yline(`mean`r'' `upper`r'' `lower`r'') ///
        name(rep`r', replace) title("ETHNICITY = `r'")
    local graphs `graphs' rep`r'

Any help is greatly appreciated

[Øyvind Snilsberg]

remove any reference to the ethnicity variable,

sum difference1
local mean = r(mean)
local upper = r(mean) + 1.96 * r(sd)
local lower = r(mean) - 1.96 * r(sd)
graph twoway scatter difference1 avgclinichomes, yline(`mean' `upper' `lower')

[Eli Omo]

Thank you very much this worked!