linear: Significant Cutoff Value for Linear Regression

In cutoff: Seek the Significant Cutoff Value

Description

Significant Cutoff Value for Linear Regression

Usage

linear(data, y, x, cut.numb, n.per, p.cut = 0.05, strict = TRUE,
  include = "low", round = 2, adjust = 1)

Arguments

data	data
y	name for y
x	name for x
cut.numb	number of cutoff points
n.per	the least percentage of the smaller group comprised in all patients
p.cut	cutoff of p value, default is 0.05
strict	logical. TRUE means significant differences for each group combination were considered. FALSE means considering for any combination
include	direction of cutoff point. Any left letter of lower or upper
round	digital. Default is 2
adjust	numeric value, adjust methord for p value. 1, defaulted, represents Bonferroni. 2 represent formula given by Douglas G in 1994

Value

a dataframe contains cutoff points value, subject numbers in each group, dumb variable, beta of regression and p value.

Examples

linear(data=mtcars,y='qsec',x='disp',
       cut.numb=2,
       n.per=0.25)

linear(data=mtcars,y='qsec',x='disp',
       cut.numb=2,
       n.per=0.25,
       p.cut=0.05,
       strict=TRUE,
       include='low',
       round=2)
linear(data=mtcars,y='qsec',x='disp',
       cut.numb=2,
       n.per=0.25,
       p.cut=0.05,
       strict=FALSE,
       include='low',
       round=2)

Example output

1: all combination: 351

2: filter by n.per
   --- 
   ===
   Combination:  30 

3: last combination: 1

   cut1 cut2       n          n.per  dump        beta    pvalue  p.adjust
1 140.8  318 10/14/8 0.31/0.44/0.25 b2/b3 -1.36/-2.42 0.05/0.00 1.37/0.09

1: all combination: 351

2: filter by n.per
   --- 
   ===
   Combination:  30 

3: last combination: 1

   cut1 cut2       n          n.per  dump        beta    pvalue  p.adjust
1 140.8  318 10/14/8 0.31/0.44/0.25 b2/b3 -1.36/-2.42 0.05/0.00 1.37/0.09

1: all combination: 351

2: filter by n.per
   --- 
   ===
   Combination:  30 

3: last combination: 29

    cut1  cut2        n          n.per  dump        beta    pvalue    p.adjust
1  120.3 225.0   8/9/15 0.25/0.28/0.47 b2/b3  0.03/-1.68 0.97/0.03 29.12/ 0.75
2  120.3 258.0  8/10/14 0.25/0.31/0.44 b2/b3  0.11/-1.85 0.88/0.01 26.55/ 0.35
3  120.3 275.8  8/13/11 0.25/0.41/0.34 b2/b3 -0.14/-2.10 0.84/0.01 25.31/ 0.20
4  120.3 301.0  8/14/10 0.25/0.44/0.31 b2/b3 -0.42/-1.91 0.58/0.02 17.26/ 0.65
5  120.3 304.0   8/15/9 0.25/0.47/0.28 b2/b3 -0.48/-1.97 0.52/0.02 15.51/ 0.63
6  120.3 318.0   8/16/8 0.25/0.50/0.25 b2/b3 -0.56/-2.00 0.45/0.02 13.48/ 0.72
7  121.0 225.0   9/8/15 0.28/0.25/0.47 b2/b3  0.04/-1.67 0.96/0.02 28.82/ 0.62
8  121.0 258.0   9/9/14 0.28/0.28/0.44 b2/b3  0.13/-1.85 0.87/0.01 25.95/ 0.28
9  121.0 275.8  9/12/11 0.28/0.38/0.34 b2/b3 -0.14/-2.10 0.83/0.01 25.00/ 0.16
10 121.0 301.0  9/13/10 0.28/0.41/0.31 b2/b3 -0.44/-1.90 0.54/0.02 16.25/ 0.55
11 121.0 304.0   9/14/9 0.28/0.44/0.28 b2/b3 -0.51/-1.97 0.48/0.02 14.42/ 0.53
12 121.0 318.0   9/15/8 0.28/0.47/0.25 b2/b3 -0.59/-1.99 0.41/0.02 12.31/ 0.61
13 140.8 258.0  10/8/14 0.31/0.25/0.44 b2/b3 -0.82/-2.28 0.26/0.00   7.94/0.03
14 140.8 275.8 10/11/11 0.31/0.34/0.34 b2/b3 -0.97/-2.52 0.15/0.00   4.39/0.02
15 140.8 301.0 10/12/10 0.31/0.38/0.31 b2/b3 -1.26/-2.33 0.07/0.00   2.12/0.07
16 140.8 304.0  10/13/9 0.31/0.41/0.28 b2/b3 -1.30/-2.39 0.06/0.00   1.76/0.07
17 140.8 318.0  10/14/8 0.31/0.44/0.25 b2/b3 -1.36/-2.42 0.05/0.00   1.37/0.09
18 145.0 275.8 11/10/11 0.34/0.31/0.34 b2/b3 -0.39/-2.20 0.56/0.00 16.89/ 0.07
19 145.0 301.0 11/11/10 0.34/0.34/0.31 b2/b3 -0.73/-2.01 0.30/0.01   9.04/0.26
20 145.0 304.0  11/12/9 0.34/0.38/0.28 b2/b3 -0.79/-2.07 0.26/0.01   7.68/0.26
21 145.0 318.0  11/13/8 0.34/0.41/0.25 b2/b3 -0.87/-2.10 0.21/0.01   6.16/0.31
22 146.7 275.8  12/9/11 0.38/0.28/0.34 b2/b3 -0.69/-2.31 0.32/0.00   9.49/0.03
23 146.7 301.0 12/10/10 0.38/0.31/0.31 b2/b3 -1.04/-2.11 0.14/0.00   4.22/0.14
24 146.7 304.0  12/11/9 0.38/0.34/0.28 b2/b3 -1.09/-2.18 0.12/0.00   3.47/0.13
25 146.7 318.0  12/12/8 0.38/0.38/0.25 b2/b3 -1.16/-2.20 0.09/0.01   2.65/0.16
26 160.0 301.0  14/8/10 0.44/0.25/0.31 b2/b3 -0.48/-1.81 0.52/0.01 15.60/ 0.39
27 160.0 304.0   14/9/9 0.44/0.28/0.28 b2/b3 -0.56/-1.88 0.43/0.01 13.01/ 0.38
28 160.0 318.0  14/10/8 0.44/0.31/0.25 b2/b3 -0.67/-1.90 0.34/0.02 10.14/ 0.46
29 167.6 318.0   16/8/8 0.50/0.25/0.25 b2/b3 -0.86/-1.91 0.24/0.01   7.10/0.37

cutoff documentation built on Jan. 11, 2020, 9:39 a.m.