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Re: st: Table to count how many times an event occurs with another
From
Eric Booth <[email protected]>
To
"<[email protected]>" <[email protected]>
Subject
Re: st: Table to count how many times an event occurs with another
Date
Thu, 4 Aug 2011 15:39:14 +0000
<>
Sorry, I forgot to mention that -tuples- is a user-written package (by NJC) from SSC. Type -ssc install tuples- or -findit tuples- to install.
- Eric
__
Eric A Booth
Public Policy Research Institute
Texas A&M University
[email protected]
On Aug 4, 2011, at 10:34 AM, Eric Booth wrote:
> <>
>
> Try:
>
> ***********
> clear
> input str12(Date Time ) D1 D2 D3 D4
> "01/01/2008" "8:00" 1 0 0 1
> "01/01/2008" "9:00" 0 1 0 0
> "01/01/2008" "10:00" 0 1 1 0
> "01/01/2008" "9:00" 0 0 0 0
> "01/01/2008" "10:00" 1 1 1 1
> "01/01/2008" "9:00" 0 1 0 1
> "01/01/2008" "10:00" 1 0 0 1
> end
>
>
> **number of times each pair co-occurs:
> tuples D1-D4, display max(2)
> *tuples 5-10 are what you want:
> forval i = 5/`ntuples' {
> loc one: piece 1 2 of "`tuple`i''"
> loc two: piece 2 2 of "`tuple`i''"
> g myvar`i' = 1 if `one'==1 & `two'==1
> lab var myvar`i' "`tuple`i''"
> }
>
> **count number of times in each Time interval:
> preserve
> collapse (count) myvar5-myvar10, by(Date Time)
> l Time my*, noobs
> restore
>
> *or you can use -egen count-
> **********
>
> - Eric
> __
> Eric A Booth
> Public Policy Research Institute
> Texas A&M University
> [email protected]
>
> On Aug 4, 2011, at 10:07 AM, Katia Bobulova wrote:
>
>> This is an example of my databse:
>>
>> Date Time D1 D2 D3 D4
>> 01/01/2008 8:00 1 0 0 1
>> 01/01/2008 9:00 0 0 0 0
>> 01/01/2008 10:00 0 1 1 0
>> ..... ....... . . . .
>>
>> For every day I have something similar to the above example with dummy
>> variables.
>> In the fist row (8:30) I have that two dummies happen at the same time
>> and also in the last row (10:00).
>> I want to construct a table, in which I have the number of times ( for
>> each interval throughout my whole sample) I have that events D1 and D4
>> happen together and D2 and D3 happen together and so on for all
>> possible combinations.
>>
>> Thanks,
>> Katia
>>
>>
>>
>>
>>
>> 2011/8/4 Anders Alexandersson <[email protected]>:
>>> Please provide the original example data of the 4 events and 10
>>> observations from which you want to create the table.
>>> The reason I ask is that I do not understand your provided 4*4 table.
>>>
>>> Anders Alexandersson
>>> [email protected]
>>>
>>> On Thu, Aug 4, 2011 at 10:08 AM, Katia Bobulova
>>> <[email protected]> wrote:
>>>> Because it doesn't do what I want and anyway it is not possible to use
>>>> tabulate with more than two variables.
>>>>
>>>> Katia
>>>>
>>>> 2011/8/4 Nick Cox <[email protected]>:
>>>>> Why not -tabulate-?
>>>>>
>>>>> Nick
>>>>>
>>>>> On 4 Aug 2011, at 10:52, Katia Bobulova <[email protected]>
>>>>> wrote:
>>>>>
>>>>>> Dear All,
>>>>>>
>>>>>> I have many events in my dataset and I want to count how many times
>>>>>> one event happens with another one.
>>>>>>
>>>>>> Assuming fro example 4 events and ten observations, I would like to
>>>>>> have a table like this:
>>>>>>
>>>>>> x1 x2 x3 x4
>>>>>> x1 10 2 1 3
>>>>>> x2 1 10 0 0
>>>>>> x3 0 3 10 1
>>>>>> x4 2 5 0 10
>>>>>>
>>>>>> Could you please help me?
>>>
>>> *
>>> * For searches and help try:
>>> * http://www.stata.com/help.cgi?search
>>> * http://www.stata.com/support/statalist/faq
>>> * http://www.ats.ucla.edu/stat/stata/
>>>
>>
>> *
>> * For searches and help try:
>> * http://www.stata.com/help.cgi?search
>> * http://www.stata.com/support/statalist/faq
>> * http://www.ats.ucla.edu/stat/stata/
>
>
> *
> * For searches and help try:
> * http://www.stata.com/help.cgi?search
> * http://www.stata.com/support/statalist/faq
> * http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/