MATLAB Programming
MATLAB Programming MATLAB Programming
7 Working with Scientific Data Formats HDF-EOS Point Data HDF-EOS Point data sets are tables. You can import a subset of an HDF-EOS Point data set by specifying field names and level. Optionally, you can refine the subsetting by specifying the range of records you want to import, by defining a rectangular area, or by specifying a time period. For information about specifying a rectangular area, see “Geographic Box” on page 7-44. For information about subsetting by time, see “Time” on page 7-46. HDF-EOS Swath Data HDF-EOS Swath data is data that is produced by a satellite as it traces a path over the earth. This path is called its ground track. The sensor aboard the satellite takes a series of scans perpendicular to the ground track. Swath data can also include a vertical measure as a third dimension. For example, this vertical dimension can represent the height above the Earth of the sensor. The HDF Import Tool supports the following mutually exclusive subsetting options for Swath data: • “DirectIndex”onpage7-49 • “Geographic Box” on page 7-50 • “Time” on page 7-51 • “User-Defined” on page 7-51 To access these options, click the Subsetting method menu in the Importing and Subsetting pane. 7-48
Hierarchical Data Format (HDF4) Files Click here to select a subsetting option Direct Index. You can import a subset of an HDF-EOS Swath data set by specifying the location, range, and number of values to be read along each dimension. Each row represents a dimension in the data set and each column represents these subsetting parameters: • Start — Specifies the position on the dimension to begin reading. The default value is 1, which starts reading at the first element of each dimension. The values specified must not exceed the size of the relevant dimension of the data set. • Increment — Specifies the interval between the values to read. The default value is 1, which reads every element of the data set. • Length — Specifies how much data to read along each dimension. The default value is the length of the dimension, which causes all the data to be read. 7-49
- Page 560 and 561: 6 Data Import and Export For exampl
- Page 562 and 563: 6 Data Import and Export 6-124
- Page 564 and 565: 7 Working with Scientific Data Form
- Page 566 and 567: 7 Working with Scientific Data Form
- Page 568 and 569: 7 Working with Scientific Data Form
- Page 570 and 571: 7 Working with Scientific Data Form
- Page 572 and 573: 7 Working with Scientific Data Form
- Page 574 and 575: 7 Working with Scientific Data Form
- Page 576 and 577: 7 Working with Scientific Data Form
- Page 578 and 579: 7 Working with Scientific Data Form
- Page 580 and 581: 7 Working with Scientific Data Form
- Page 582 and 583: 7 Working with Scientific Data Form
- Page 584 and 585: 7 Working with Scientific Data Form
- Page 586 and 587: 7 Working with Scientific Data Form
- Page 588 and 589: 7 Working with Scientific Data Form
- Page 590 and 591: 7 Working with Scientific Data Form
- Page 592 and 593: 7 Working with Scientific Data Form
- Page 594 and 595: 7 Working with Scientific Data Form
- Page 596 and 597: 7 Working with Scientific Data Form
- Page 598 and 599: 7 Working with Scientific Data Form
- Page 600 and 601: 7 Working with Scientific Data Form
- Page 602 and 603: 7 Working with Scientific Data Form
- Page 604 and 605: 7 Working with Scientific Data Form
- Page 606 and 607: 7 Working with Scientific Data Form
- Page 608 and 609: 7 Working with Scientific Data Form
- Page 612 and 613: 7 Working with Scientific Data Form
- Page 614 and 615: 7 Working with Scientific Data Form
- Page 616 and 617: 7 Working with Scientific Data Form
- Page 618 and 619: 7 Working with Scientific Data Form
- Page 620 and 621: 7 Working with Scientific Data Form
- Page 622 and 623: 7 Working with Scientific Data Form
- Page 624 and 625: 7 Working with Scientific Data Form
- Page 626 and 627: 7 Working with Scientific Data Form
- Page 628 and 629: 7 Working with Scientific Data Form
- Page 630 and 631: 7 Working with Scientific Data Form
- Page 632 and 633: 7 Working with Scientific Data Form
- Page 634 and 635: 7 Working with Scientific Data Form
- Page 636 and 637: 8 Error Handling Checking for Error
- Page 638 and 639: 8 Error Handling Handling and Recov
- Page 640 and 641: 8 Error Handling X = A * B catch di
- Page 642 and 643: 8 Error Handling matrixMultiply(A,
- Page 644 and 645: 8 Error Handling Message Identifier
- Page 646 and 647: 8 Error Handling error('msg_id', 'e
- Page 648 and 649: 8 Error Handling Warnings Like erro
- Page 650 and 651: 8 Error Handling Warning Control Th
- Page 652 and 653: 8 Error Handling warnings by issuin
- Page 654 and 655: 8 Error Handling You must type the
- Page 656 and 657: 8 Error Handling s(2) ans = identif
- Page 658 and 659: 8 Error Handling end function f2(x)
7 Working with Scientific Data Formats<br />
HDF-EOS Point Data<br />
HDF-EOS Point data sets are tables. You can import a subset of an HDF-EOS<br />
Point data set by specifying field names and level. Optionally, you can refine<br />
the subsetting by specifying the range of records you want to import, by<br />
defining a rectangular area, or by specifying a time period. For information<br />
about specifying a rectangular area, see “Geographic Box” on page 7-44. For<br />
information about subsetting by time, see “Time” on page 7-46.<br />
HDF-EOS Swath Data<br />
HDF-EOS Swath data is data that is produced by a satellite as it traces a path<br />
over the earth. This path is called its ground track. The sensor aboard the<br />
satellite takes a series of scans perpendicular to the ground track. Swath data<br />
can also include a vertical measure as a third dimension. For example, this<br />
vertical dimension can represent the height above the Earth of the sensor.<br />
The HDF Import Tool supports the following mutually exclusive subsetting<br />
options for Swath data:<br />
• “DirectIndex”onpage7-49<br />
• “Geographic Box” on page 7-50<br />
• “Time” on page 7-51<br />
• “User-Defined” on page 7-51<br />
To access these options, click the Subsetting method menu in the<br />
Importing and Subsetting pane.<br />
7-48
Change language