[Monthly User Guide] Technical Specifications and Restrictions of JMP

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뉴스레터 구독자에게 발송되는 Monthly User Guide입니다. 관련 문의는 ikju.shin@jmp.com으로 부탁드립니다.

Any computer hardware or software is limited in its throughput. . Fortunately, most of the work we do is within that scope. ( If not, it means it's time to change your computer or software. ) JMP Such as Data Analysis software depends on what data it is dealing with. Data The scope of restrictions may be determined in processing or storage. . this month User Guide in JMP Let's see how far we can go .

One. JMP Datatable size that can be processed by

released in 2007 JMP Version 7 from Data Table All software restrictions related to . the rest is in use Operating system and memory capacity no see . Right-click on the Windows button ' system ' Select Device Specifications (Device Specification) processor from , RAM and operating system, etc.

If you still 32 Bit Windows operating system JMP 14 If you are using an older version , The rows and columns of the data table are 32 is defined as a bit integer . signed 32 The maximum bit integer is 2,147,483,647(2 of 31 squared ) by , max row (Column) or heat (Row) The number cannot exceed this .

On a 64-bit operating system, it is purely determined by the amount of memory. . JMP is driven with all data loaded into memory . this In-Memory method It is said , It is also the reason that graphs and data can be linked in real time to enable quick navigation. .

common case JMP Is 4 GB ideal RAM is recommended , data to work with 2 It is recommended to have twice as much memory installed . Operation is possible even if the size of the file is larger than memory . This is due to the virtual memory technology of the operating system. . only , I have to bear with slowing down my work. .

2. can be stored in one cell. Data range and size of

One) number (Numeric)

JMP by default will display it in an optimal way based on the value of each cell . If you enter a number in the default state, 12 Seat , In other words -999,999,999,999 from 999,999,999,999 It is normally displayed until , here 9 If you enter once more -1e+13 or 1e+13 It is expressed in exponential form as .

variable name to display all larger numbers (Column Header) Double-click or right-click on the variable name Column Info by choosing , Format second Fixed Dec You can change it to . because of this Display up to 64 digits and up to 25 decimal places You can .

then 64 all seats 9 The number filled with / is the minimum ?

JMP IEEE 754 double-precision floating-point method (double-precision floating-point format) mistake according to ( express 實數) . Floating point is when the computer handles real numbers. , mantissa representing significant figures (假數) and exponent to solve the position of the decimal point (指數) How to divide by . Numbers that can be represented in this way are -1.7976931348623157e+308 from 1.7976931348623157e+308 is up to .

2) message (Text, Character)

There is no restriction on the length of characters as long as the memory capacity allows.

3) Tips for running out of memory

You can reduce the data table capacity by compressing numeric columns that contain many small integers, or columns with fewer than 255 distinct values. . for example , 389 dog's fever 85,000 If you use this function on data with 250 MB the file 33 MB It may decrease to some extent .

Usage is simple . After selecting one or more target columns, Cols / Utilities / Compress Selected Columns Just run .

the number of distinct values in a string 255 If less than List Check( check the list ) is displayed .

For numeric columns , Data Format this Best, Fixed Dec or Data It is compressed only if it is in the format , according to the data 1 byte, 2 bytes or 4 bytes Compressed to integers .

3. JMP Wow Multi-threading ( multi-threading )

Multi-threading is multi-core CPU It is a technology that divides and processes operations at the same time to improve processing speed in the environment. . AMD latest ryzen CPU same case , maximum 32 core 64 Threads are also supported . this CPU If you purchase JMP It is often expected that the processing speed will improve dramatically. . In conclusion ' It may or may not improve. ' no see .

Multi-threading to apply, you must be able to split the operation into each independent . therefore JMP Among the functions of Multi-threading There are also calculations suitable for , There are also operations that are not. . The functions that support multi-threading are as follows. . ( underline is JMP Pro)

• Boosted Trees
• Bootstrap Forest
• Choice
• Covering Arrays
• Capability Analysis in Distribution
• Factor Analysis
• Fit Life by X
• Fit Model: Parametric Survival, Mixed Model , Generalized Regression , and Response Screening
• Functional Data Explorer
• Gaussian ( Fast GASP and the use of Categorical variables are only in JMP Pro.)
• Late Class Analysis
• Life Distribution
• Multivariate
• Neural ( some features are only in JMP Pro.)
• Nominal Logistics
• Nonlinear and Nonlinear Curves
• Normal Mixtures in Cluster Analysis
• Partial Least Squares ( some features are only in JMP Pro.)
• Partition
• Predictor Screening
• Principal Components
• Process Screening
• Profiler (Does not apply to Profilers launched from within other platforms.)
• Reliability Forecast
• Repairable Systems Simulation
• Response Screening
• Sparse Principal Components
• Structural Equation Models
• Support Vector Machines
• SVD Imputation in the Missing Values Screening
• Text Explorer ( SVD and Late Class Analysis are only in JMP Pro.)
• Time Series Forecast
• Uplift
• Variable Clustering

If you want to check if the CPU is being used well, you can check it by running the Windows task manager or resource monitor program. . Right-click on the Windows screen task bar and select Task Manager, or search by name in Windows Search and run it. .

Below is a slightly larger Data have Bootstrap Forest The situation when running

* References ( link )
What is the largest table size that JMP® can handle?
Features That Support Multithreading
Column and Data Table size( Volume) cut down