draftsight dimension

A typical example is the logical business compared to cubes, product dimensions, time dimensions, position dimensions, respectively, as different axes. The intersection of axes is a detailed fact. This fact table is a table of intersection points of multiple dimensions. A dimension table is a form of factual analysis.First, the star structure in the database structure is introduced, which maintains the data in a single fact table in the center of the

This article mainly introduces four knowledge points, which is also the content of my lecture. 1.PCA Dimension reduction operation; PCA expansion pack of Sklearn in 2.Python; 3.Matplotlib subplot function to draw a child graph; 4. Through the Kmeans to the diabetes dataset clustering, and draw a child map. Previous recommendation:The Python data Mining course. Introduction to installing Python and crawler"Python Data Mining Course" two. Kmeans cluste

Feature Selection (Dimension Reduction) is an important step in data preprocessing. For classification, feature selection can select the features most important to classification from a large number of features to remove noise from the original data. Principal Component Analysis (PCA) and linear discriminant analysis (LDA) are two of the most common feature selection algorithms. For more information about PCA, see my other blog. Here we mainly introdu

(1) Create aliases (table-new Object-alias) in the physical layer for the table(1) Create dimensions in the Business layer (table-Create logical dimension--"dimension based on level hierarchy")Drillthrough is the function of the dimension itselfGeneral information in the name: departmentKeyword action: Determining unique values and determining what to displayAggr

Incorrect array dimension returned by PHP for retrieving Webservice data I used the nusoap plug-in to read webservice, but an error occurred. When the returned array is greater than one group, the returned value is correct. However, when only one group of array data is returned, the dimension changes, resulting in incorrect array length obtained by count. The code is as follows: when there are two groups of

Incorrect array dimension returned by PHP for retrieving Webservice data I used the nusoap plug-in to read webservice, but an error occurred. When the returned array is greater than one group, the returned value is correct. However, when only one group of array data is returned, the dimension changes, resulting in incorrect array length obtained by count. The code is as follows: when there are two groups of

One-dimensional array is used as two-dimensional, and dimension array is used as two-dimensional# Include Int main (void){Int I, j;Int a [] = {, 35 };Typedef int (* Type) [5];Type B = (Type);For (I = 0; I {For (j = 0; j Printf ("% d", B [I] [j]);Printf ("\ n ");} Return 0; } What is access to a two-dimensional array using a one-dimensional array? What should I do if y (4) and y (2, 1) are the same variables? This is what LZ can look.Data storage is

In the process of extracting data from an OLTP business database to a DW data warehouse, especially after the first import, the problem is that some data in the business database has been changed to reflect these changes to the Data warehouse. In the Data warehouse, which data should be changed, which can not be changed? With these changes in mind, the dimension tables in the Data warehouse should be designed to meet these needs. It is clear that the

The SSAS Date dimension is basically present in all Cube design processes, and it is difficult to see an OLAP database with no time dimension. However, depending on the project requirements, the Date dimension may be designed differently, so there are a few issues to be aware of when designing the Time dimension: What

Ax has a very good function to hide or display a dimension, such as a warehouse, a warehouse location, and a batch number. Such operations are available in almost all forms that involve services, for example, the sales, purchase order line, inventory log, item quantity, and Other forms can all be set by the inventory-> Dimension Display button. This function is okay in most cases, but sometimes users want t

Merge data 3 ----------- conditional split and slowly changing Dimension components Search for Excel and databases using productnumber. When the data is in Excel but not in the database, it is added; when all data is in Excel, it is updated; if there is data in the database but there is no data in Excel, It is deleted.Delete the database if it is no longer in the database. I. Conditional split componentIf you use the product table for testing, there

Returns an array dimension (number of layers) call. $arr = array(array(1,2=>array(1,2,3)),2=>array(1=>array(array(array())),2),3);echo GetArrLv($arr); For example, if implode is a multi-dimensional array, an error is returned. of course, we can use an array similar to array_search (true, array_map ('is _ array', $ arr )) this method is used to determine whether it is 2-dimension + (for example, please Hold

CString str = _t ("Dimension Style"); CString strtmp (_t ("")); ////Get the callout style sheet for the current drawingacdbdimstyletable*pdimstyletbl; Acdbhostapplicationservices ()->workingdatabase ()getdimstyletable (PDIMSTYLETBL, acdb::kforwrite); ////Whether it already contains if(pdimstyletbl->has (str)) {Acdbdimstyletablerecord*Pdims; Pdimstyletbl-getAt (Acdb_model_space, Pdims, acdb::kforwrite); DoubleDtxtheight = Pdims->dimtxt ();////height

I am currently a very important part of the work is to participate in or responsible for a number of clusters in the Department of Maintenance, application development and optimization, including: HBase cluster, Storm cluster, Hadoop cluster, Super Mario cluster (real-time streaming system developed within the department), etc., with the expansion of business, The number of cluster machines has been small and large. Next is me to myself this 1 years, in the cluster application and the operation

Ax uses the inventory dimension check to check the inventory dimension in all aspects of the inventory. We know that most of the check tasks are handed over to the classes of the inventmovent series.There are two main tasks for inventory dimension check: 1. Whether the dimension specified by the user exists in the rele

Tags: style blog http OS Io strong data Dimension optimization In the process of SSAs development and design, dimension optimization is very important because it plays a very important role in the process of SSAs analysis service performance optimization. Generally, the first step to optimize the performance of a cube is to view the dimension and observe the de

Recently learned a bit of PHP array of ascending and descending dimension, nonsense less, on the demo.Suppose there is an array before descending, as follows $array = Array (' a ' = = = Array (' b ' = = 1, ' c ' = = = Array (' d ' = = 2, ' E ' + 3) '), ' f ' = = 4, ' g ' = = AR Ray (' H ' =>5));After dimensionality reduction, the following:Descending dimension $array = Array ( ' 0 ' = = a->b->1, ' 1 '

if you are using WVGA as a benchmark, Put it on the HVGA and it will not be fully displayed. The problem will be more pronounced on the QHD. Even the same hdpi WVGA and qHD have problems, and QHD can show more than WVGA.use dimension resources to solve problemsAs can be seen from the above questions, the density-independent units can not solve the above problems. Of course, there is a choice for each resolution to make a layout, but this will cause a

Thinkphp converts a two-dimensional array into a one-dimensional array method applicable to tags. thinkphp dimension. Thinkphp converts a two-dimensional array into a one-dimensional array method applicable to tags. thinkphp dimension this article provides an example of Thinkphp's one-dimensional array method applicable to tags. Share with Thinkphp to convert a two-dimensional array into a one-dimensional a

Use the java date class to generate a data warehouse dimension table Use the java date class to generate a data warehouse dimension table Date class: Returns the number of milliseconds of a relative date. Accurate to milliseconds, but does not support date internationalization and Time Zone display. The Date class evolved from the Java Development Kit (JDK) 1.0. At that time, it only contained several metho