How does Excel count how many data types are in a column and how many are in each category?

Excel can count how many kinds of data are in a column and how many kinds of data are in each category. The simple method of PivotTable report is

Select the data range to be used as the pivot table, which must contain field names, then select Data-Pivot Table and Perspective from the menu and follow the wizard. Try to drag the required fields into the structure diagram of the PivotTable report in the layout, and put the fields in the positions of rows, columns and data respectively. You can choose different statistical methods in the data and confirm them.

How to count how many different kinds of data are in a column of data in excel?

:jingyan . Baidu ./article/7f 4 1 ecec 1 AEA 29593 c 095 c 76。

How many types of data lines are there? It is divided into three categories: USB data cable, audio cable and HDMI high-definition multimedia cable. The USB data line of Jianghan Electronics is divided into USB Micro data line, USB Mini data line, Apple interface data line and new C data line.

How many kinds of Tibetan mastiffs are there? Tibetan mastiffs are divided into many varieties, all according to their appearance. According to the color of Tibetan mastiff, it can be divided into snow mastiff, black mastiff, yellow mastiff, red mastiff, armored gold, armored silver, wolf blue and gray mastiff. On the whole, the varieties are tiger head, big lion head and small lion head. Different varieties have different characteristics. The bristles on the back of the head and around the neck of the Tibetan mastiff with a big lion head are upright, while those on the back of the head and around the neck of the Tibetan mastiff with a small lion head are shorter, with a slightly smaller head wind and a calm expression. The bristles on the head and neck of the Tiger-headed Tibetan Mastiff are not short or too short, with a wide mouth and a short nose, which looks like a tiger.

China Tibetan Mastiff is mainly divided into four strains.

Among them are Tibetan Mastiff, Qinghai Mastiff, Hequ Mastiff and Hongyuan Mastiff.

How many kinds of inks are there? According to the operation form, it is divided into: ① volatile dry ink. ② Reactive drying ink. B, heating and curing the ink. . UV curing ink (UV ink)

How many types of databases are there? four

Fuzzy database

Refers to a database that can handle fuzzy data. General databases are based on two-way logic and accurate data tools, and cannot express many ambiguities.

Things. With the establishment of the theoretical system of fuzzy mathematics, people can use quantity to describe fuzzy events and perform fuzzy operations. In this way, incompleteness, uncertainty and fuzziness can be introduced into the database system, thus forming a fuzzy database. There are two main aspects in the research of fuzzy database. First, how to store fuzzy data in the database; The second is to define various operations and establish functions on fuzzy data. The representation of fuzzy numbers mainly includes fuzzy interval number, fuzzy center number, fuzzy set number and membership function.

Statistical database

Database system for managing statistical data. This database contains a large number of data records, but its purpose is to provide users with all kinds of statistical summary information, rather than providing information of a single record.

Mesh database

A database that processes grid data models with record types as nodes. The processing method is to decompose the network structure into several secondary tree structures, which are called systems. System type

Is a description of the relationship between two or more record types. In a department type, there is a dominant record type called department master record class.

Type, and other types are called member record types. The relationship between department owners and members is a one-to-many relationship. The representative of mesh database is DBTG system. 1969 USA

CODASYL organization put forward a "DBTG report". From now on, the system implemented according to the DBTG report is generally called the DBTG system. Most existing grid database systems adopt DBTG scheme. DBTG system is a typical three-level structure system: sub-mode, mode and storage mode. The corresponding data definition languages are called sub-mode definition language SSDDL, mode definition language SDDL and device media control language DMCL respectively. And data manipulation language DML.

deductive database

Refers to a database with deductive reasoning ability. It is generally realized by database management system and rule management system. Storing factual data for reasoning in a database is called an extended database; Defining the facts to be exported with logical rules is called connotation database. The main research content is how to calculate effectively.

Reasoning of computational logic rules. Specifically: optimization of recursive query, consistency maintenance of rules, etc.

How many kinds of seafood, vegetables and main raw materials are there in Korean barbecue?

Beef1000g

Korean barbecue marinade 80g

Pickling ratio:

Marinade: water: raw meat = 8: 0.5 (cooking wine) 10: 100.

Other ingredients:

Cooking wine 0.5g/ 100g raw meat.

Water (ice water or cold water)100g

Step 1: Remove the inedible parts such as blood clots and fascia from the raw meat, and cut it into strips about 6 mm thick, 4-5 cm wide and about 10 cm long.

Step 2: Beat the meat strips with a meat hammer to make the meat soft and easy to roll into meat rolls.

Step 3: Roll the beaten meat strips into meat rolls, as shown in the figure (step 3 in the figure).

Step 4: Weigh the Korean barbecue marinade and water in proportion and mix them evenly to make the marinade.

Step 5: Add the prepared pickling solution into the meat roll, stir it evenly (the recommended practice is to use a strong bag, seal it and roll it on the table until the juice is absorbed by the meat), and put it in the refrigerator for 4 ~ 6 hours.

Step 6: Bake the marinated meat roll in the oven. In order to make the meat well, we spread out the meat roll and cut it into small pieces. Temperature: 200℃, time: 5 ~ 8 minutes, until the central temperature reaches 80℃. In addition, the temperature and time can be flexibly controlled according to the size of the meat pieces made by ourselves.

Suggested cooking time and method:

Beef: 5 ~ 8 minutes

[Statistics] What are the functions of cloth? There are infinite types of theories. But there are about a dozen commonly used, such as uniform distribution, binomial distribution and so on.

How many kinds of chemical industries are there: inorganic chemical industry, organic chemical industry and biochemical industry?