Search found 16 matches

by neophytosk
Mon Oct 21, 2013 12:44 am
Forum: Data Manipulation
Topic: Importing trade data with special date format
Replies: 9
Views: 6284

Re: Importing trade data with special date format

perfect,

can i use it now to compund the frequencies e.g at 10 minutes intervals?

if yes how can I do this in eviews?

Thnx

Neo
by neophytosk
Sun Oct 20, 2013 1:56 pm
Forum: Data Manipulation
Topic: Importing trade data with special date format
Replies: 9
Views: 6284

Re: Importing trade data with special date format

here is a sample, the original file has 1mln observations so it is too bigto upload
by neophytosk
Sun Oct 20, 2013 1:34 pm
Forum: Data Manipulation
Topic: Importing trade data with special date format
Replies: 9
Views: 6284

Re: Importing trade data with special date format

Hi thnx for the comments. I imported the data as suggested and use "deal_id" as the identifier (see updated attached sample file) but I still would like to change "lastmodificationdate" to a readable eviews date format as I would like to create a new file with frequency compoundi...
by neophytosk
Sun Oct 20, 2013 11:30 am
Forum: Data Manipulation
Topic: Importing trade data with special date format
Replies: 9
Views: 6284

Re: Importing trade data with special date format

Hi

I am using eviews 7 , is there a way to open the file as you do in v.8?

Also what do you mean by unique values? That some observations occur in the same time?

Thnx

Neo
by neophytosk
Sun Oct 20, 2013 8:19 am
Forum: Data Manipulation
Topic: Importing trade data with special date format
Replies: 9
Views: 6284

Importing trade data with special date format

Hello Do you have any suugestions on how to import a financial series dataset with the following dat structure: 16JAN2012:03:43:42 I tried to import as unstructured and then convert the date variables as below, but i recieve an error: series datetime = @dateval(@str(lastmodificationdate, "f11.0...
by neophytosk
Sun Oct 20, 2013 8:08 am
Forum: Programming
Topic: Structural VAR program
Replies: 0
Views: 1905

Structural VAR program

Hello, can anybody explain to me what the below commands from an SVAR program do? I am trying to update my model and I am not sure if these commands work: 'a. test matrix temp_mmax = irf_{%VARname}{%Flow} + 2*irf_{%VARname}{%Flow}_se matrix temp_mmin = irf_{%VARname}{%Flow} - 2*irf_{%VARname}{%Flow}...
by neophytosk
Thu May 30, 2013 11:12 am
Forum: Data Manipulation
Topic: How to update a high frequency dataset using a timestamp var
Replies: 15
Views: 11300

Re: How to update a high frequency dataset using a timestamp

I attached an example workfile I would like to convert from high to lower frequency using the date as ID. For example to sum up the group variables for a specific time frequency e.g 5min intervals. Rgd those trades which appear at the same time I propose to: -use deal ID as an additional source vari...
by neophytosk
Mon May 27, 2013 5:17 am
Forum: Data Manipulation
Topic: How to update a high frequency dataset using a timestamp var
Replies: 15
Views: 11300

Re: How to update a high frequency dataset using a timestamp

yup I 've tried that but I get the reply 'variables you are trying to merge are of the wrong type'

I have befoehand added a cell ID and date ID series and used those as 'source IDs'
by neophytosk
Sat May 25, 2013 3:57 am
Forum: Data Manipulation
Topic: How to update a high frequency dataset using a timestamp var
Replies: 15
Views: 11300

Re: How to update a high frequency dataset using a timestamp

Could you give me a code to execute this? I need test first your suggestion and see if this will give me the results I would like to get.

Thanks
by neophytosk
Fri May 24, 2013 1:08 pm
Forum: Data Manipulation
Topic: How to update a high frequency dataset using a timestamp var
Replies: 15
Views: 11300

Re: How to update a high frequency dataset using a timestamp

this means that I have to make the assumption that each observation based on ID equals to some predefined time interval, e.g 1min right? from ID1 to ID5 the d(time)=4mins if we make the assumption that all observations are equally distributed in time? let me know if this is the case and potentially ...
by neophytosk
Fri May 24, 2013 9:25 am
Forum: Data Manipulation
Topic: How to update a high frequency dataset using a timestamp var
Replies: 15
Views: 11300

Re: How to update a high frequency dataset using a timestamp

I need to structure the dataset - this post was created for this reason as I want to convert it from high to low frequency based on the time variable.

e.g sum up observations at 1 min or 10 minute intervals

Is this possible without structuring the dataset?
by neophytosk
Fri May 24, 2013 8:46 am
Forum: Data Manipulation
Topic: How to update a high frequency dataset using a timestamp var
Replies: 15
Views: 11300

Re: How to update a high frequency dataset using a timestamp

These are trades which occur at the same exact time......i.e two customers trade at the same time with the bank What do you suggest as an alternative to structure the dataset? Is there a way to overcome this? Let's first go with the easiest way, say i delete those trades which occur exactly at the s...
by neophytosk
Fri May 24, 2013 5:02 am
Forum: Data Manipulation
Topic: How to update a high frequency dataset using a timestamp var
Replies: 15
Views: 11300

Re: How to update a high frequency dataset using a timestamp

Hi,

I provided an example file. The date variable is 'last modification date'

Best

Neo
by neophytosk
Thu May 23, 2013 6:53 am
Forum: Data Manipulation
Topic: How to update a high frequency dataset using a timestamp var
Replies: 15
Views: 11300

How to update a high frequency dataset using a timestamp var

Title: How to update an unstructured high frequency dataset using a timestamp variable Dear all, I have the following question. Background I have a timeseries dataset regarding fx trades with different counterparties as below, location of exchange etc (which are not included in the example). Key var...
by neophytosk
Wed May 15, 2013 11:20 pm
Forum: Estimation
Topic: How to convert a categorical variable into dummies
Replies: 3
Views: 6034

Re: How to convert a categorical variable into dummies

Hi Statz, Thnx for the reply. However to convert the counterparty type with the recode function I need to re write the command for all counterparty types in the variable.My example was very simplified. I am looking for a code to do this since I have many categorcial variables to convert into dummies...

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