Results 1 to 4 of 4
Like Tree1Thanks
  • 1 Post By chiro

Math Help - Observational vs. Experimental Data and How to Control Covariants.

  1. #1
    Newbie oldwarplanes's Avatar
    Joined
    Mar 2013
    From
    United States
    Posts
    7

    Exclamation Observational vs. Experimental Data and How to Control Covariants.

    Hello, all. So I have this dataset that contains information pertaining to gun registration in the US including variables such as population, area, urban (I'm guessing that's the number of cities or something), poverty, gun registrations, and homicides. Here is the actual dataset:

    Code:
         pop  area urban poverty gunreg homicides
    AL  4089  52.4    60    19.0      1       410
    AR  2372  53.2    54    18.4      1       240
    CA 30380 163.7    93    14.2      1      3710
    CT  3291   5.5    79     5.8      1       170
    DC   598   0.1   100    19.2      1       489
    FL 13277  65.8    85    14.1      1      1300
    HI  1135  10.9    89    10.0      1        44
    IA  2795  56.3    61    10.1      1        62
    IL 11543  57.9    85    13.3      1      1270
    MA  5996  10.6    84    10.2      1       200
    MD  4860  12.4    81     9.3      1       540
    MI  9368  96.8    70    13.9      1      1020
    MN  4432  86.9    71    12.0      1       100
    MO  5158  69.7    53    13.6      1       550
    NC  6737  53.8    50    13.2      1       730
    ND   635  70.7    53    13.5      1        11
    NJ  7760   8.7    89     9.0      1       350
    NY 18058  54.5    84    14.1      1      2550
    OH 10939  44.8    74    11.8      1       760
    PA 11961  46.1    69    10.8      1       740
    RI  1004   1.5    86     8.2      1        38
    SC  3560  32.0    55    16.5      1       350
    TN  4953  42.1    61    16.9      1       470
    TX 17349 268.6    80    16.8      1      2660
    UT  1770  84.9    87     9.8      1        43
    WA  5018  71.3    76    26.2      1       220
    AK   570 656.4    68    11.2      0        56
    AZ  3750 114.0    88    14.2      0       290
    CO  3377 104.1    82    12.1      0       155
    DE   680   2.5    73     8.1      0        32
    GA  6623  59.4    63    16.0      0       720
    ID  1039  83.6    57    13.7      0        21
    IN  5610  36.4    65    14.1      0       380
    KS  2495  82.3    69    11.1      0       150
    KY  3713  40.4    52    17.4      0       260
    LA  4252  51.8    68    22.0      0       760
    ME  1235  35.4    45    12.5      0        23
    MS  2592  48.4    47    23.8      0       370
    MT   808 147.0    53    15.8      0        29
    NE  1593  77.4    66    10.9      0        43
    NH  1105   9.4    51     7.1      0        32
    NM  1548 121.6    73    20.9      0       160
    NV  1284 110.6    88    10.7      0       135
    OK  3175  69.9    68    15.8      0       220
    OR  2922  98.4    71    11.3      0       120
    SD   703  77.1    50    13.5      0         9
    VA  6286  42.8    69    10.6      0       550
    VT   567   9.6    32     7.1      0        24
    WI  4955  65.5    66     9.2      0       240
    WV  1801  24.2    36    17.2      0       135
    WY   460  97.8    65    10.6      0        20
    So using this data (since it's not a perfectly set environment, it takes a little extra work to find relationships), how would you go about figuring out what factors actually contribute to the number of homicides. I feel a little overwhelmed and after transforming so much data (with basic least squares etc), I'm starting to confuse myself. Can anyone lend me a hand/lead me in the right direction to help me figure out what contributes to homicides?

    Thanks so much in advance!
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    Joined
    Sep 2012
    From
    Australia
    Posts
    3,612
    Thanks
    591

    Re: Observational vs. Experimental Data and How to Control Covariants.

    Hey oldwarplanes.

    For your problem you need to outline exactly what kind of relationships you are wishing to find.

    Do you want to look at whether specific kinds of relationships exist or do you want to use algorithms to try and find relationships that you haven't pre-decided?

    These two approaches require completely different kind of analyses.
    Thanks from Ruun
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Newbie oldwarplanes's Avatar
    Joined
    Mar 2013
    From
    United States
    Posts
    7

    Re: Observational vs. Experimental Data and How to Control Covariants.

    I guess I'm looking to find relationships that I haven't pre-decided.
    Follow Math Help Forum on Facebook and Google+

  4. #4
    MHF Contributor
    Joined
    Sep 2012
    From
    Australia
    Posts
    3,612
    Thanks
    591

    Re: Observational vs. Experimental Data and How to Control Covariants.

    In that case you will need to look into data mining.

    One suggestion I have for this is Rattle which has a GUI interface and allows you to perform a variety of data mining tasks.

    Rattle is an add-on library/code-base for the free open source package R.

    The R Project for Statistical Computing

    Togaware: Rattle: A Graphical User Interface for Data Mining using R
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 0
    Last Post: July 5th 2012, 02:18 PM
  2. MATHEMATICA FindFit experimental data
    Posted in the Math Software Forum
    Replies: 6
    Last Post: February 13th 2010, 02:50 PM
  3. Help with surface plotting experimental data (Matlab)
    Posted in the Math Software Forum
    Replies: 1
    Last Post: August 3rd 2009, 05:02 AM
  4. stats - Experimental Data and Design Analysis
    Posted in the Advanced Statistics Forum
    Replies: 1
    Last Post: August 13th 2006, 12:55 PM
  5. Saxon algebra 2 (experimental data)
    Posted in the Advanced Algebra Forum
    Replies: 4
    Last Post: January 26th 2006, 10:39 AM

Search Tags


/mathhelpforum @mathhelpforum