为什么Google Play的主动设备安装量不等于每日总设备安装量减去每日总设备卸载量？

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有效设备安装与Google Play统计信息（以前称Android市场）的总安装量之间的差异很容易由用户卸载解释。不过，我希望活动设备的安装量等于整个设备的安装量减去总卸载量。但看着日常设备安装和卸载我的几个应用程序，这似乎并不是这种情况。

我看到：

转到Google Play上的统计信息页面将应用导出为CSV

在excel中打开并创建一列daily_device_installs - daily_device_uninstalls。这应该是每日净安装次数。

由于数据发送时间的差异，您可能不希望此列等于后续日期间active_device_installs 的差异。但是在很长一段时间内，活动安装中的差异应该接近净安装列的总和。不是。 在几个月内的极端情况下，active_device_installs仅增加了40k，而净安装是100k。

Google Play帮助对此没有多大用处： support.google/googleplay/android-developer/bin/answer.py?hl=zh-CN&answer=139628

其他人看到相同的东西吗？我们应该信任哪个统计信息，或者我缺少什么东西和tehy是一致的？

解决方案

我在我的开发人员帐户中遇到同样的问题。 （每日活动安装 - 每日活动卸载）数量为30天的时间少于（活动安装第1天 - 活动安装第30天）数量的3倍

Google play文档说：

有关当前应用安装人数的数据，请参阅主动或总计指标，而不是尝试总计日常指标日常指标旨在提供关于您的应用程序最近安装的即时反馈总计和活动指标将为您提供最准确的图片 - 它们考虑应用程序重新安装，生成每日报告，不再有效的设备等等。

但是，数字的3倍差异非常大，最重要的是非常混乱

任何其他经验？

The difference between Active Device Installs and total installs on Google Play's stats (formerly Android market) is easily explained by users uninstalling. However I would expect the active device installs to equal to the total device installs less the total uninstalls. But looking at the daily device installs and uninstalls across several of my apps this does not seem to be the case.

What I'm seeing:

Go to the stats page on Google Play export to CSV for an app

Open in excel and create a column that is daily_device_installs - daily_device_uninstalls . This should be the net daily installs.

Due to discrepancies in when data is sent you might not expect this column to equal the difference in active_device_installs between subsequent days. But over a long period of time, the difference in active installs should be close to the sum of the net installs columns. It's not.

In one extreme case over a couple of months the active_device_installs shows an increase of only 40k while the sum of the net installs is 100k.

Google Play help is not much use on this: support.google/googleplay/android-developer/bin/answer.py?hl=en&answer=139628

Are others seeing the same thing? Which stat should we trust or am I missing something and tehy are consistent?

解决方案

i experience the same issue into my developer account. The number of (Daily Active Installs - Daily active uninstalls) for a period of time of 30 days is 3 times less than the number of (Active Installs Day 1 - Active Installs Day 30)

The Google play documentation says:

"For data about the current installed population of your app, refer to "active" or "total" metrics rather than trying to sum up daily metrics. The daily metrics are meant to provide immediate feedback about your app’s recent installations. "Total" and "active" metrics will give you the most accurate picture -- they take into account app reinstallation, data that is received after the daily report is generated, devices that are no longer active, and more."

But 3 times difference on numbers is very big and most importantly very confusing

any other experience?