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The core tools behind the app is the sampling tree - which is under the module https://github.com/unhcr-americas/rmsSampling/blob/master/R/mod_screener.R -
The sampling tree is indeed a directed graph.
The initial documentation was turned into a DiagrammeR::grViz object defined as below:
#install.packages("DiagrammeR") DiagrammeR::grViz( "digraph flowchart { node [fontname = Lato]; edge [fontname = Lato]; # Decision Points ######### facecondition [ label = 'Q: There is possibility to do \n face to face interview'; shape = diamond; color = '#FAEB00'; style = rounded; ]; lessthan5000 [ label = 'Q: The population group is \n smaller than 5,000 individuals'; shape = diamond; color = '#FAEB00'; ]; availablereg [ label = 'Q: Up to date and \n complete registration list'; shape = diamond; color = '#FAEB00'; ]; budget [ label = 'Q: Specific budget and time available \nto conduct a listing exercise '; shape = diamond; color = '#FAEB00'; ]; traceable [ label = 'Q: Population group traceable'; shape = diamond; color = '#FAEB00'; ]; spread [ label = 'Q: Geographic distribution \n of that population group in the country '; shape = diamond; color = '#FAEB00'; ]; cluster [ label = 'Q: Do we have already \n population size breakdown by area within the country? '; shape = diamond; color = '#FAEB00'; ]; strata [ label = 'Q: Operation need \n from statistically reliable disaggregation '; shape = diamond; color = '#FAEB00'; ]; gather [ label = 'Q: Population tend to gather at \n a certain location on a specific day/time '; shape = diamond; color = '#FAEB00'; ]; network [ label = 'Q: Population is a well-connected community,\n where people tend to know each others '; shape = diamond; color = '#FAEB00'; ]; expert [ label = 'Q: Adequate time and expertise to \n carry out Respondent Driven Sampling'; shape = diamond; color = '#FAEB00'; ]; # Method Statement ######### nonprob [ label = 'Non-probabilistic methods'; shape = rect; color = '#99c7e4';]; srs [ label = 'Simple Random Sampling \n(SRS) without stratification'; shape = rect; color = '#338ec9';]; ppsframe [ label = 'Multiple-Stage \nCluster Sampling\n with Frame'; shape = rect; color = '#338ec9'; ]; srsstrata [ label = 'Simple Random Sampling\n (SRS) within Strata'; shape = rect; color = '#338ec9'; ]; acs [ label = 'Adaptive Cluster Sampling'; shape = rect; color = '#338ec9'; ]; lts [ label = 'Time Location Sampling'; shape = rect; color = '#66aad7'; ]; rds [ label = 'Respondent Driven Sampling\n (RDS)'; shape = rect; color = '#66aad7'; ]; # Edge statements ######### lessthan5000 -> facecondition; lessthan5000 -> nonprob[ label = 'Yes' ]; facecondition -> availablereg; availablereg -> traceable[ label = 'Yes' ]; traceable -> budget[ label = 'No' ]; traceable -> spread[ label = 'Yes' ]; budget -> nonprob[ label = 'No' ]; budget -> strata[ label = 'Yes' ]; spread -> srs[ label = 'Concentrated' ]; spread -> budget[ label = 'Scattered' ]; strata -> srsstrata[ label = 'Yes' ]; strata -> cluster[ label = 'No' ]; cluster -> acs[ label = 'No' ]; cluster -> ppsframe[ label = 'Yes' ]; availablereg -> gather[ label = 'No' ]; gather -> lts[ label = 'Yes' ]; gather -> network[ label = 'No' ]; network -> expert[ label = 'Yes' ]; network -> nonprob[ label = 'No' ]; expert -> rds[ label = 'Yes' ]; expert -> nonprob[ label = 'No' ]; } ")
However the current decision flow might still not be smooth:
The text was updated successfully, but these errors were encountered:
sometimes people mix between stratum and cluster, i you need to identify metadata,
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Edouard-Legoupil
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The core tools behind the app is the sampling tree - which is under the module https://github.com/unhcr-americas/rmsSampling/blob/master/R/mod_screener.R -
The sampling tree is indeed a directed graph.
The initial documentation was turned into a DiagrammeR::grViz object defined as below:
However the current decision flow might still not be smooth:
The text was updated successfully, but these errors were encountered: