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繪製折線圖時,我對x軸有問題。如下圖所示,我的標籤太多了。ggplot2中的縮放x軸
我嘗試只包括使用seq()
一些標籤來補救方案,但我會遇到這樣的錯誤:
ggplot(df, aes(x = date, y = measure, group = 1)) +
geom_line() +
theme_bw() +
theme(axis.text.x = element_text(angle = 90, hjust = 1, vjust = 0.5)) +
xlab("X-Axis") +
ylab("Y-Axis") +
scale_x_continuous(breaks = round(seq(min(df$date), max(df$date), by = 221.2), 1))
#> Error in seq.default(min(df$date), max(df$date), :
#> 'from' must be a finite number
#> In addition: Warning message:
#> In seq.default(min(df$date), max(df$date), :
#> NAs introduced by coercion
有什麼建議?如果有幫助,df$date
被認爲是一個角色。也許,我應該將其轉換爲數字或作爲日期時間?
請提供用於生產該地塊您'df' – useR