[R] Conditional Data Manipulation -Cumulative Product

[David L Carlson]

You need to use plain text, not html in your email. Your data are scrambled (see below). It is better to send your data using the R dput() function:

dput(StartSignals)
dput(MainData)
dput(StopSignals)

-------------------------------------
David L Carlson
Department of Anthropology
Texas A&M University
College Station, TX 77840-4352


-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-project.org] On Behalf Of Pooya Lalehzari
Sent: Tuesday, October 7, 2014 11:55 AM
To: R help
Subject: [R] Conditional Data Manipulation -Cumulative Product

Hello,
I have three datasets StartSignals, MainData, StopSignals and need to compound the data for each variable in MainData over dates that fall between the Start and Stop signals. (Stop signals are common and the same to all X1:X5 variables). Please see sample below:
The one way I was thinking of doing this project was to setup a nested "FOR" loop and go through the three data matrices. Is there a more elegant way of doing this?
Thank you.

StartSignals:
Date

X1

X2

X3

X4

X5

1/1/2014

0

0

0

0

0

1/2/2014

0

1

0

0

1

1/3/2014

0

0

1

0

0

1/4/2014

0

0

0

0

0

1/5/2014

1

0

0

0

1

1/6/2014

0

0

1

0

0

1/7/2014

0

0

0

1

0

1/8/2014

0

0

0

0

0

1/9/2014

0

0

0

0

0

1/10/2014

0

0

1

1

0

1/11/2014

1

0

0

0

0

1/12/2014

0

1

0

0

1

1/13/2014

0

0

0

0

0




MainData:
Date

X1

X2

X3

X4

X5

1/1/2014

1.92

1.38

0.83

1.25

1.12

1/2/2014

0.67

1.51

1.21

0.06

1.24

1/3/2014

1.09

0.09

0.2

1.62

0.3

1/4/2014

1.81

1.33

1.57

1.68

1.41

1/5/2014

1.04

0.38

1.72

1.98

1.23

1/6/2014

1.69

1.12

0.76

1.45

1.99

1/7/2014

1.57

1.3

1.22

0.66

1.75

1/8/2014

0.5

1.75

0.27

0.09

1.91

1/9/2014

0

1.26

0.59

0.4

1.81

1/10/2014

1.31

1.57

1.68

0.98

1.79

1/11/2014

0.43

1.63

1.98

1.46

0.81

1/12/2014

1.51

0.78

1.63

0.46

1.84

1/13/2014

0.26

0.34

0.34

0.97

1.13




StopSignals:
Date

Stop

1/1/2014

0

1/2/2014

0

1/3/2014

1

1/4/2014

0

1/5/2014

1

1/6/2014

0

1/7/2014

0

1/8/2014

1

1/9/2014

0

1/10/2014

0

1/11/2014

0

1/12/2014

0

1/13/2014

1



ExpectedResult:

Date

X1

X2

X3

X4

X5

1/1/2014

0

0

0

0

0

1/2/2014

0

1.51

0

0

1.24

1/3/2014

0

0.14

0.2

0

0.37

1/4/2014

0

0

0

0

0

1/5/2014

1.04

0

0

0

1.23

1/6/2014

0

0

0.76

0

0

1/7/2014

0

0

0.93

0.66

0

1/8/2014

0

0

0.25

0.06

0

1/9/2014

0

0

0

0

0

1/10/2014

0

0

1.68

0.98

0

1/11/2014

0.43

0

3.33

1.43

0

1/12/2014

0.65

0.78

5.42

0.66

1.84

1/13/2014

0.17

0.27

1.84

0.64

2.08










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