56 lines
2.2 KiB
R
56 lines
2.2 KiB
R
library(here)
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library(survival)
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library(ggsurvfit)
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source(here("code/helpers.R"))
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options(arrow.skip_nul = TRUE)
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a <- load_accounts() %>%
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filter(!has_moved) %>%
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filter(locked == FALSE) %>%
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anti_join(., arrow::read_feather(here("data/scratch/individual_moved_accounts.feather")), by=c("username"="moved_acct", "server"="moved_server")) %>%
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inner_join(arrow::read_feather(here("data/scratch/metadata.feather")), by="server") %>%
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filter(created_at > "2023-04-30") %>%
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filter(created_at <= "2023-06-30") %>%
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filter(created_at < last_status_at) %>%
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mutate(jm = server %in% arrow::read_feather(here("data/scratch/joinmastodon.feather"))$domain) %>%
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mutate(active = last_status_at >= as.Date("2023-12-01")) %>%
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#mutate(last_status_at = ifelse(active, lubridate::ymd_hms("2023-09-01 00:00:00", tz = "UTC"), last_status_at)) %>%
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mutate(active_time = difftime(ifelse(active, lubridate::ymd_hms("2023-12-01 00:00:00", tz = "UTC"), last_status_at), created_at, units="days")) %>%
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#mutate(active_time = difftime(last_status_at, created_at, units="days")) %>%
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mutate(status = ifelse(active, 0, 1))# %>% filter(followers_count > 0) %>% filter(following_count > 0)
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server_summary <- a %>%
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group_by(server) %>%
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summarize(cohort_size = n(), .groups = "drop")
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sel_a <- a %>%
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mutate(is_ms = server == "mastodon.social") %>%
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ungroup() %>%
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inner_join(server_summary, by = "server") %>% filter(!noindex) #%>% filter(user_count > 100)
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cx <- sel_a %>%
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coxph(Surv(active_time, status) ~ is_ms + jm, data = ., x=TRUE, robust = T, cluster=server)
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cz <- cox.zph(cx)
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plot_survival <- sel_a %>%
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#filter(followers_count > 0) %>%
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#filter(following_count > 0) %>%
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mutate(id = paste(username, server, sep = "@")) %>%
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survfit2(
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Surv(active_time, status) ~ jm + is_ms, # is_jm
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data = ., id = id,
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cluster = server,
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robust = TRUE
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) %>%
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ggsurvfit() +
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labs(
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y = "Overall survival probability",
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x = "Time (days)",
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) +
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scale_fill_discrete(name = "Group", labels = c("Not in JM", "JM", "mastodon.social")) +
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scale_color_discrete(name = "Group", labels = c("Not in JM", "JM", "mastodon.social")) +
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theme_bw_small_labels() +
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theme(axis.text.x = element_text(angle = 45, hjust = 1), legend.position="bottom")
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