GGplot Barplot不接受Y值吗?

问题描述

我有一个数据框:

>picard
count    reads
 1    20681318
 2     3206677
 3      674351
 4      319173
 5      139411
 6      117706

如何在ggplot(条形图)上绘制log10(计数)与log10(读数)?

How do I plot log10(count) vs log10(reads) on a ggplot (barplot)?

我尝试过:

ggplot(picard) + geom_bar(aes(x=log10(count),y=log10(reads)))

但是它不接受y = log10(读取).如何绘制我的y值?

But it is not accepting y=log10(reads). How do I plot my y values?

推荐答案

您可以执行类似的操作，但绘制x轴(​​不连续，对数为10)对我来说没有意义:

You can do something like this, but plotting the x axis, which is not continuous, with a log10 scale doesn't make sense for me :

ggplot(picard) +
    geom_bar(aes(x=count,y=reads),stat="identity") +
    scale_y_log10() +
    scale_x_log10()

如果您只希望y轴的对数为10，则只需执行以下操作即可:

If you only want an y axis with a log10 scale, just do :

ggplot(picard) +
    geom_bar(aes(x=count,y=reads),stat="identity") +
    scale_y_log10()

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