Calculate the percentage of zeros that I have in a column in R -

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i have column of catch rate data in df (df$catch.rate) contains combination of decimal values , zeros. calculate percentage of 0 rows in whole column give me indication of contribution data.

many thanks!

sum(df$catch.rate %in% 0 ) / nrow(df)

i suggest using %in% if have na values..... e.g.

x <- c(0,na,1)  sum(x == 0 ) / length(x) #[1] na

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