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st: graph the percent missing fairly efficiently
I want to produce a report for all variables of the percent of observations
that are missing. I know about codebook and inspect, and 'nmissing' (from the
web). However, if possible, what is wanted is a percent of missing
observations for each variable. I could use 'tabulate' but ideally we want a
pie chart showing the number missing. For this I could use 'graph' and
'pie' but to make 'pie' work, I think I need to turn all the missings [recode
or mvencode] to a recognizable coded missing like '-99' or something similar.
This is one option, but perhaps there is an another option (that won't require
variable recoding or generation, or if it does, certain solutions are fairly
efficient). Perhaps some variant of egen or egenodd is applicable, or
perhaps the matter is simplified with a different type of graph chart.
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