Monthly Archives: October 2014

esProc Helps Process Structured Texts in Java –Expression Computing

As Java doesn’t directly support dynamically parsing expressions in the text files, the computation can only be realized by splitting strings manually and then writing a recursive program. The whole process requires writing a great amount of code, is complicated … Continue reading

Posted in Data Analytics, esProc/R/Python/Perl, Program Language, Structured Data Process | Leave a comment

esPro Helps Process Structured Texts in Java – Data Import

Java provides only the most basic data import functions like specifying separators. But other common functions, such as importing specified columns by column names, specifying the order of columns and data types and that no separatorshould be used, need to … Continue reading

Posted in Data Analytics, esProc/R/Python/Perl, Program Language, Structured Data Process | Leave a comment

esProc Helps Process Structured Text in Java – Import data into the database

While importing the structured text files into the database using Java alone, we need to combine the SQL statements together manually, and to deal with various troublesome situations as well, like if the data in a table has been existed, … Continue reading

Posted in Data Analytics, esProc/R/Python/Perl, Program Language | Tagged , , , | Leave a comment

esProc Helps Process Structured Texts in Java – Alignment Join

The join statements of the database can be used conveniently to perform the operation of alignment join. But sometimes the data is stored in the text files, and to compute it in Java alone we need to write a large … Continue reading

Posted in esProc/R/Python/Perl, FAQ, Program Language | Tagged , , , , | Leave a comment

esProc Helps Process Structured Texts in Java –Non-Single Row Records

esProc can help Java deal with various computations in processing structured texts. But in the case of non-single row records, it is necessary to preprocess the data before esProc can perform computations on it. Let’s look at this through an … Continue reading

Posted in esProc/R/Python/Perl, FAQ, Program Language | Tagged , , , | Leave a comment

How to Clear Cell Values to Release Memory in esProc

In esProc, the storage of cellset variables is ubiquitous. Cell values are convenient references during computation, but they could occupy too much memory. Data can be cleared from cells to reduce memory footprint after they accomplish their mission in computation. … Continue reading

Posted in Application, esProc/R/Python/Perl, Program Language | Tagged , , | Leave a comment

How to Compute Moving Average in R Language

A moving average is used to smooth out a time series. Computing moving average is a typical case of ordered data computing. Its basic computing method is to create a subset composed of N consecutive members of a time series, … Continue reading

Posted in esProc/R/Python/Perl, FAQ | Tagged , | Leave a comment