little sas book

In general, we will use Excel to statistical test results, in addition to Excel, there are SAS and other software, but also can be statistical test results, I am also a beginner SAS, I would like to introduce you to the simple use of SAS, as I continue to learn statistical knowledge, I also hope to delve deeper into the capabilities of these statistical software

Assignment Statement Variable = expression Examples of assignment values: X = X1 + x2; X = sum (OfX1-x6); To use Sum (x, y); if either X or Y is a missing value, the sum result sets the missing value to 0, and if z = x + y is used; if there is a missing value, the result of Z will be the missing value. AR (1) = Br (1); * assign the first element of the array Br to the first element of the array ar. The subscript of the array in SAS starts with 1; X =

Proc report includes the print, means, tabulate, sort process, and data step functions: I. Basic Syntax: 1 Data natparks; 2 infile 'C: \ myrawdata \ parks. dat '; 3 input name $1-21 type $ region $ museums camping; 4 run; 5 6/* ----- group and analyze SS variables (group: vertical; horizontal SS: horizontal) --- */7 * region as group and type as variant SS variable with sums; 8 proc report data = natparks nowindows headline; 9 column region type N, (museums camping), mean; 10/* add statistics to

http://blog.csdn.net/killmice/article/details/42745937 The test tool FIO is read sequentially as an example, with the following commands: fio-name IOPS-RW = Read-bs = 4k-runtime = 60-iodepth 32-filename/dev/sda6-ioengin E Libaio-direct = 1 where rw = read for random reads, BS = 4k for each read 4k, filename specifies the corresponding partition, here I am/dev/sda6, direct = 1 means the cache through Linux Test SATA Hard Drive, SAS hard drive, SSD har

OverviewA unit server in Beijing accidentally offline, hot spare disk, replace the offline hard disk. However, the hot spare disk in the process, another hard drive offline, causing hot spare synchronization failed, two sets of RAID array crashes, LVM structure is incomplete, the file system is not working properly, the server data needs to be repaired. Two off-line hard drive detection, found that the first offline hard drive is not recognized, the initial inference is a hardware failure, the n

substr (s,p,n) with the character position commandfunction: The substitution and extraction of SAS characters.Grammar:1. Extract: New=substr (old,p,n)Start extracting n-length characters from the first character of the variable old, and name it the variable new.such as: New=substr (old,2,3); old= "ABCDEFG"; new= "BCD";2. Replacement: substr (old,p,n) = "XXX"The first character of the variable old is replaced by n characters, and the replacement conten

Since the last time I wroteArticleIt was already a few months ago. Here I will post the article address. If you are interested, you can check it out. 1) database entity design that supports differential data storage-debut 2) database entity design that supports differential data storage (2) (continued) 3) database entity design that supports differential data storage (3) (continued) 4) Introduction of the SAS framework (this article)

1 Proc Sort data = Data - Set 2 Out = Neat 3 Nodupkey 4 Dupout = Extraobs; 5 By Variable - 1 Variable - 2 ... Variable - N; 6 Run; Note: If out = is not specified, the sorted data is automatically replaced by the original dataset. the nodupkey option command SAS deletes repeated observations of variables in the by statement. dupout = option command SAS puts the de

The usual array functions in SAS are: Dim dimk hbound Hboundk LBound lboundkThe array function counts the dimensions, the upper and lower bounds of the array, and facilitates the writing of the portable program, which includes:Dim (x) To find the number of elements in the first dimension of the array xDIMK (x) to find the number of elements in the array x K dimensionLBound (x) to find the lower bound of the first dimension of array XHbound (x) to find

SAS and SATA Hard Drive guidelines When you add a hard disk drive to the server, follow these general rules: The system will automatically set all drive numbers If you are using only one hard drive, install the drive in the home with the smallest drive letter. When multiple drives are divided into the same drive array, these drives must have the same capacity to maximize storage space efficiency. Drives in the same logical volume must have the sa

Data input and output in SAS are: 1. By column: Input variable name Data score; /* Create a data set on the score */Input name $1-10 Math 11-12 Chinese 17-18 中文版 26-27; /* For each variable, enter data by column */Datalines; /* Tip Below is the data line */Bital 90 92 88Martin 80 95 94Run2. List input: Input variable name Data /* Data set name default, default is data1*/Length City $9/* Specifies that the length of the character variable is 9 (the def

(%) any sequence of zero or more charactersproc SQL; Select Ffid, name, address from sasuser.frequentflyers where like ' % P%place ' * Spaces are also included in the string; Quit;3.6:using the sounds-like (=*) Operator to Select a spelling variationThe Sounds-like (=*) operator uses the SOUNDEX algorithm to compare each value of a column (or other Sql-expressi ON) with the word or words (or other sql-expression) so you specify.3.7:subsetting Rows by Using calcu

Tags: SAS XFS SSDAn OLTP performance comparison test was previously done: SAS vs SSD various modes MySQL TPCC OLTP comparison test results, this time to do the OLAP comparison test.The comparison test results are shown below:650) this.width=650; "Src=" http://dp.imysql.com:8080/files/upload_yejr_imysql/SAS_VS_SSD_MySQL_OLAP_benchmarking _20121225.jpg "style=" border:0px; "alt=" sas_vs_ssd_mysql_olap_benchma

. Therefore, whether static classes are used or not depends on the actual situation. Ii. How does the log producer pass in the parameter or? Iii. How to Write logs, synchronous or asynchronous? 4. Log File storage location and file size control. 5. Expansion problems. I am going to talk about the second, third, fourth, and fifth points in one piece. In fact, there are two types of logs: Fixed logs, such as system logs or internal framework logs, and user logs, such as in Web appli

After studying two days of SAS, SAS can finally obtain the file name and column name. // Obtain the file column name Libname da "C: \ test "; Data ex; Set da. QQ; Run; Proc transpose data = ex out = ex2; VaR _ all _; // the table cannot be completely transposed before it is added. Some columns are always missing. Run; Proc print data = ex2; Run; // Obtain the file name in a folderFilename indata pipe 'di

Detailed operation on the SAS card function of HP computer, hp Detailed operation on the SAS card function of HP computers in IDC Management I. Software Removal Protection 1) After the computer is turned on, wait for the access to the dashboard selection system interface; 2) Press F1 to go To the BIOS page of the SAS card; 3 ). switch the cursor to >>> System Res

Data student1;Input name$ age score;Datalines;Wangwu 29 68Lisi 30 85Wangxi 28 79Lixingxun 32 91Wufang 27 56;RunData student;Set student1;RunData student2;Input name$ age score;Datalines;WANGWU 29 88Lisi 30 89Wangxi 28 85Lixingxun 32 93Wufang 27 76;Run/* Display the original data set */Proc Print data=student;Title "Original data Set";Run/*remove Removal Observation */Data student1;Modify Student1;If score RunProc Print data=student1;Title "Remove";Run/*replace Replacement Observations */Data stu

With the SAS Gplot/gchart module, simple charts can be drawn.1. Bar chart, doughnut chart, pie chart and so on;Proc Gchart data=xxxxx;Vbar varname;RunThis process contains several options, note that the difference between the subgroup and group options, subgroup is not listed, and group is drawn separately for different groups;2. Scatter plots, line charts, etc.Proc Gplot data=xxxxx;Plot y*x;RunWhen there are several different lines on the same table,

Data heartemp;Set Sashelp.heart;If bp_status= ' normal ' then delete;* blood pressure is not written to the data set, drop excludes variables, delete excludes observations;Keep status sex Weight_status bp_status;Rename bp_status = Bloodpressure;RunProc Print data= heartemp (obs=10);RunData mytemp;input x y;Z=x+y;/* Statistical odd even, evennumber+1 complete accumulation */If mod (z,2) =0 then evennumber+1;else oddnumber+1;Cards12 5568 68 9788 999114 8628 9738 6748 9778 234;RunProc Print;RunThis

1, missing values are missing, characters are missing;2, Problem: PROC tabulate watchmaking class There is missing, the purpose of the missing range of a non-missing value belongs to a class, the other in accordance with the actual operation, the remainder with other.PROC"0=" 1 ' = '. A CLASS "' 2 ' = ' 03. B CLASS "other = "04. OTHERS ";RUN;/* results, ' returned to ' 04. Other "*//* After testing, change (') to (') is correct, that is, the missing is "01. Missing "* *[