How to share data in a decentralized way

1. According to Hou Jietai: the so-called centralization refers to subtracting the mean value of a variable from its expected value. For sample data, each observation value of a variable is subtracted from the sample average value of the variable, and the transformed variable is centralized
for your question, subtract the mean from each measurement.

2. What's gongxinbao? I don't know once about decentralized data trading. Go ahead. Good luck.

3. First, the goal of refined operation. For example, if your proct is just a tool, I'm afraid it can't be said that there are too many refined operations. Generally, it's enough to do a good job in routine user behavior analysis, and then cooperate with user qualitative research to guide proct design; If it is a content-based proct, or a proct with both function and content, it really needs to be considered. 2. Design statistical framework suppose that users will frequently interact and use functions on your app, and browse or generate content at the same time, so you need to design your statistical framework well while designing procts. 2、 Data collection first lists the data items you need, then evaluates which parts need to be reported by app and which parts can be counted in the background, and then adds them on the front and back platforms. Generally speaking, the collected data reported by app must be carefully checked and tested before release, because once the version is released and the data collection goes wrong, not only the previous efforts are wasted, but also a lot of dirty data will be brought. At the same time, the running efficiency of the client may be reced, and the gain is not worth the loss. 2. After data collation and data collection, all kinds of original data need to be processed into intuitive and visible data needed by proct managers. Here, we need to do some basic data logical association and display, so we won't repeat it. 3. Data analysis according to the statistical framework designed at the beginning, you can clearly see the data you need. Of course, the above is just a more basic analysis. If you get these data, you can analyze that users who use a function also like B function. The two are closely related. Can you consider more integration or interface adjustment in front-end design; For example, by analyzing the click stream, what are the paths for most users to visit or use the app, and do they hide the core functions too deeply? For another example, we can analyze different user attributes, such as male users and female users. Do they have significant differences in user behavior? wait. There is a big gap between the data analysis methods and models of different procts, which cannot be explained at once. So the above are more examples. 3、 Some principles need to be noted: 1. The data itself is objective, but the data interpreted must be subjective. The same data analyzed by different people is likely to draw completely opposite conclusions, so we must not analyze it with opinions in advance (for example, if we have hypotheses, we can use the data to demonstrate them); 2. Data collection by app must be of low priority. It can't affect proct performance and user experience because of data collection, and it can't collect user's privacy data (although many domestic apps don't do this); 3. Data is not omnipotent. You should trust your own judgment.

4. To put it simply, there are only two methods. One is to collect 400 Dongyong lake from Outland. After mining to 400, you can mine sarongye iron ore and (rich) cobalt ore, but you can't mine fulongye iron ore and Titan God iron ore

the other way is to go to Northrend at 350. At this time, you can collect cobalt minerals. The first few maps are all cobalt minerals. You can collect cobalt minerals while practicing or doing tasks. 400 can mine evil iron, Dongyong Lake / basin is good. If you see that you can improve your skills by smelting some minerals, don't hesitate to go to the auction house to buy some groups of minerals for smelting. It's worth the money< br /> http://wow.tgbus.com/professions/Mining/201005/20100520003452.shtml
375-450 mining strategy

5.

Northrend mining trainer tribe's Warsong fortress in the north wind tundra, and the alliance's fearless fortress in the north wind tundra can be found as follows:

1. First of all, players need to come to Northrend's north wind tundra map

6. Level 81 has a mission image, so there is no way to go to Northrend except for mages. If you have hearthstone or Dalaran ring and other props, just take it as if I didn't say it
it is suggested that the mission of call of ty (which is the prelude task of vaskil undersea) should be done first. Generally, when you go to windstorm City, you will accept this task by default. The task is to ask you to go to windstorm city port by boat (that is, the ship you used to go to Northrend). After finishing the prelude, you can go to Northrend mining by boat
I hope you will adopt it!

7. I suggest you download a plug-in, gatematrix, which is easy to use http://wowui.178.com/ui/55 This is a plug-in http://wowui.178.com/ui/221 This is the database of the plug-in

8. Cobalt ore, Safi longxie iron ore and rare Titan ore
I have practiced mining for four times. Cobalt ore can be collected in the periphery of the north wind tundra, or from the middle river channel, from 350 to 400, and then go to the solacha basin to collect ordinary Safi longxie iron ore. Safi longxie iron will have a low probability of playing Titan ore. It's estimated that no one will pick it now, only for motorcycles. If there is competition in the solacha basin, we can go to the ice cap glacier to collect. The above is the experience, hope to adopt

9. LM and BL are the campsites when they first arrived in Northrend~~