function lagts not supported?

I'm trying to lag a timeseries, but neither command of lagts or lagmatrix is working.

I have a timeseries called d4. Here is an example of the timeseries which I generated by executing

tsd4 = timeseries(d4,time);

'06-Jan-2010 00:00:00' 0.10000

'07-Jan-2010 00:00:00' 0.10500

'08-Jan-2010 00:00:00' 0.10500

'11-Jan-2010 00:00:00' 0.12000

'12-Jan-2010 00:00:00' 0.12000

'13-Jan-2010 00:00:00' 0.13000

'14-Jan-2010 00:00:00' 0.18000

'15-Jan-2010 00:00:00' 0.16000

'19-Jan-2010 00:00:00' 0.15500

'20-Jan-2010 00:00:00' 0.16000

When I execute

tsd4_1 = lagts(tsd4,1);

I get the error message _ Undefined function 'lagts' for input arguments of type 'timeseries'._

When I execute

tsd4_1 = lagmatrix(tsd4,1);

I get the error message

_ *The following error occurred converting from timeseries to double: Error using double Conversion to double from timeseries is not possible.

Error in lagmatrix (line 92) YLag((L + 1):end,columns) = Y(1:(end - L), :);*_

Answer 1

[Walter Roberson]

You might not have the Financial Toolbox installed, or it might not be licensed. What is shown for

which -all lagts

?

[EM]

Hi Walter thanks for your response. It seems as though I do have the financial toolbox, I think.

>>

which -all lagts

C:\Program Files\MATLAB\R2015a\toolbox\finance\ftseries\@fints\lagts.m % fints method