xlsGetSheetTypes#

Purpose#

Gets the cell format types of a row in an Excel® spreadsheet.

Format#

types = xlsGetSheetTypes(file, sheet, row)#

Parameters:

file (string) – name of .xls or .xlsx file.
sheet (scalar) – sheet index (1-based).
row (scalar) – the row of cells to be scanned.

Returns:

types (1xK vector) –

of predefined data types representing the format of each cell in the specified row.

The possible types are:

0	Text
1	Numeric
2	Date

Portability#

Windows, Linux and macOS

Examples#

The first few lines of the example data file, xle_daily.xlsx, looks like this:

Date                        Adj Close     Volume
06/13/2017 00:00:00.000     65.158432     15807900
06/14/2017 00:00:00.000     63.978832     30280200
06/15/2017 00:00:00.000     63.495384     19258900

Therefore, the code snippet below

// File name with full path
fname = getGAUSShome() $+ "examples/xle_daily.xlsx";
sheet = 1;
row = 1;

cell_types = xlsGetSheetTypes(fname, sheet, row);

will assign cell_types equal to:

cell_types = 0  0  0

However, after the row of headers, the first column contains a date and the second and third columns contain numeric data. Therefore this code:

// File name with full path
fname = getGAUSShome() $+ "examples/xle_daily.xlsx";
sheet = 1;
row = 2;

cell_types = xlsGetSheetTypes(fname, sheet, row);

will assign cell_types to equal:

cell_types = 2  1  1

Remarks#

\(K\) is the number of columns found in the spreadsheet.

If xlsGetSheetTypes() fails, it will either terminate and print an error message or return a scalar error code, which can be decoded with scalerr, depending on the state of the trap flag.

`trap 0`	Print error message and terminate program.
`trap 1`	Return scalar error code which can be checked for with `scalmiss()`.