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rpietro / Infotrial

Analysis for infotrial application
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Chi Square Test #2

Closed lucaslentini closed 12 years ago

lucaslentini commented 12 years ago

Hi, Ricardo,

I was running some tests on the variables and I noticed that the tables that RStudio provides me are not organized! The commands work, but I can't understand the results I get!

Below, there is an example of a table I get. Is there a way to make this table more readable?

CrossTable(wouldyou,howmany,chisq=TRUE, missing.include=TRUE, format="SAS", prop.r=FALSE)

Cell Contents ------------------------- N Chi-square contribution N / Col Total N / Table Total

Total Observations in Table: 145 

                                 | howmany 
                        wouldyou |                                             1 |                                             2 |                                             3 | HOW MANY PEOPLE WILL TAKE PART IN THIS STUDY? |                                            NA |                                     Row Total |
------------------------------------- ----------------------------------------------- ----------------------------------------------- ----------------------------------------------- ----------------------------------------------- ----------------------------------------------- ----------------------------------------------- 1 17 13 2 0 86 118 0.550 0.659 0.085 0.814 0.632 0.680 0.650 1.000 0.000 0.887 0.117 0.090 0.014 0.000 0.593
2 8 5 0 0 2 15
11.333 4.152 0.207 0.103 6.433
0.320 0.250 0.000 0.000 0.021
0.055 0.034 0.000 0.000 0.014
------------------------------------- ----------------------------------------------- ----------------------------------------------- ----------------------------------------------- ----------------------------------------------- ----------------------------------------------- -----------------------------------------------
Would you participate in this study? 0 0 0 1 0 1
0.172 0.138 0.014 143.007 0.669
0.000 0.000 0.000 1.000 0.000
0.000 0.000 0.000 0.007 0.000
------------------------------------- ----------------------------------------------- ----------------------------------------------- ----------------------------------------------- ----------------------------------------------- ----------------------------------------------- -----------------------------------------------
NA 0 2 0 0 9 11
1.897 0.154 0.152 0.076 0.366
0.000 0.100 0.000 0.000 0.093
0.000 0.014 0.000 0.000 0.062
------------------------------------- ----------------------------------------------- ----------------------------------------------- ----------------------------------------------- ----------------------------------------------- ----------------------------------------------- -----------------------------------------------
Column Total 25 20 2 1 97 145
0.172 0.138 0.014 0.007 0.669
------------------------------------- ----------------------------------------------- ----------------------------------------------- ----------------------------------------------- ----------------------------------------------- ----------------------------------------------- -----------------------------------------------

Statistics for All Table Factors

Pearson's Chi-squared test

Chi^2 = 171.6125 d.f. = 12 p = 2.23344e-30

Warning message: In chisq.test(t, correct = FALSE, ...) : Chi-squared approximation may be incorrect

rpietro commented 12 years ago

when you paste it into an email it will get confusing, but in RStudio it should look like http://goo.gl/4VUog

is what you are seeing different from that?

On Thu, Aug 9, 2012 at 6:26 PM, lucaslentini notifications@github.comwrote:

Hi, Ricardo,

I was running some tests on the variables and I noticed that the tables that RStudio provides me are not organized! The commands work, but I can't understand the results I get!

Below, there is an example of a table I get. Is there a way to make this table more readable?

CrossTable(wouldyou,howmany,chisq=TRUE, missing.include=TRUE, format="SAS", prop.r=FALSE)

Cell Contents ------------------------- N Chi-square contribution N / Col Total N / Table Total

Total Observations in Table: 145

                             | howmany
                    wouldyou |                                             1 |                                             2 |                                             3 | HOW MANY PEOPLE WILL TAKE PART IN THIS STUDY? |                                            NA |                                     Row Total |

-------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------| 1 | 17 | 13 | 2 | 0 | 86 | 118 | | 0.550 | 0.659 | 0.085 | 0.814 | 0.632 | | | 0.680 | 0.650 | 1.000 | 0.000 | 0.887 | | | 0.117 | 0.090 | 0.014 | 0.000 | 0.593 | |

-------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------| 2 | 8 | 5 | 0 | 0 | 2 | 15 | | 11.333 | 4.152 | 0.207 | 0.103 | 6.433 | | | 0.320 | 0.250 | 0.000 | 0.000 | 0.021 | | | 0.055 | 0.034 | 0.000 | 0.000 | 0.014 | |

-------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------| Would you participate in this study? | 0 | 0 | 0 | 1 | 0 | 1 | | 0.172 | 0.138 | 0.014 | 143.007 | 0.669 | | | 0.000 | 0.000 | 0.000 | 1.000 | 0.000 | | | 0.000 | 0.000 | 0.000 | 0.007 | 0.000 | |

-------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------| NA | 0 | 2 | 0 | 0 | 9 | 11 | | 1.897 | 0.154 | 0.152 | 0.076 | 0.366 | | | 0.000 | 0.100 | 0.000 | 0.000 | 0.093 | | | 0.000 | 0.014 | 0.000 | 0.000 | 0.062 | |

-------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------| Column Total | 25 | 20 | 2 | 1 | 97 | 145 | | 0.172 | 0.138 | 0.014 | 0.007 | 0.669 | |

-------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------|-----------------------------------------------|

Statistics for All Table Factors Pearson's Chi-squared test

Chi^2 = 171.6125 d.f. = 12 p = 2.23344e-30

Warning message: In chisq.test(t, correct = FALSE, ...) : Chi-squared approximation may be incorrect

— Reply to this email directly or view it on GitHubhttps://github.com/rpietro/Infotrial/issues/2.

lucaslentini commented 12 years ago

Actually, I am seeing something similar to when I paste it on the text box! I made a print screen! https://docs.google.com/drawings/d/1gZDDupBDBnwAhzu3f5C1VJbAorWoS35En6EwMez6IA4/edit

Thank you!

rpietro commented 12 years ago

don't have access, but i don't understand why you would like to paste it somewhere. anyway, to get the format right try to convert the font to courier

On Sat, Aug 11, 2012 at 4:01 PM, lucaslentini notifications@github.comwrote:

Actually, I am seeing something similar to when I paste it on the text box! I made a print screen! https://docs.google.com/drawings/d/1gZDDupBDBnwAhzu3f5C1VJbAorWoS35En6EwMez6IA4/edit

Thank you!

— Reply to this email directly or view it on GitHubhttps://github.com/rpietro/Infotrial/issues/2#issuecomment-7669766.