Dear all
I am learning R
I am doing Z-test with package 'BSDA'
here is my syntax and result:
> sdgr.ztest<-z.test(growth[type=='SD'& from_treeline=='above'], +
> growth[type=='SD'& from_treeline=='below'],alternative = "two.sided", + mu
> = 0, sigma.x =(sd(growth[type=='SD'& from_treeline=='above'],na.rm = T)), +
> sigma.y =(sd(growth[type=='SD'& from_treeline=='below'],na.rm = T)),
> conf.level = 0.95)> sdgr.ztest # Z-test for Seedling Growth above and below
> treeline
Two-sample z-Test
data: growth[type == "SD" & from_treeline == "above"] and growth[type == "SD"
& from_treeline == "below"] z = NA, p-value = NAalternative hypothesis: true
difference in means is not equal to 0 95 percent confidence interval: NA NA
sample estimates:mean of x mean of y NA NA
I don't understand where my syntax went wrong. Similar syntax works for sapling
case, but not for seedling case. is it due to the NAs in my data set for
seedlings?, as the package says, NAs are allowed but will be removed during
analysis, i don't think it is the problem.
i am attaching the data file too. and one more information, I am using MS
Windows 2003 OS.
Please guide me, how can i go ahead.
Thanking you in anticipation
Warm regard
MS
Madan
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a=TEXT_MFESRP_Local_MapsMenu_Resturants_1x1id,code,growth,from_treeline,type
1,SD1,1.73,below,SD
2,SD2,1.12,above,SD
3,SD3,1.6,above,SD
4,SD4,1.66,above,SD
5,SD5,1.65,below,SD
6,SD6,1.43,above,SD
7,SD7,,above,SD
9,SD9,1.1,below,SD
10,SD10,1.44,above,SD
11,SD11,1.48,above,SD
12,SD12,2.25,above,SD
13,SD13,,above,SD
14,SD14,1.5,above,SD
15,SD15,,above,SD
16,SD16,1.06,above,SD
17,SD17,1.5,above,SD
18,SD18,4.17,below,SD
19,SD19,2.02,below,SD
20,SD20,1.38,above,SD
21,SD21,2,below,SD
22,SD22,1.41,above,SD
23,SD23,1.9,above,SD
24,SD24,1.7,above,SD
25,SD25,2.08,above,SD
26,SD26,1.92,below,SD
27,SD27,1.55,below,SD
28,SD28,1.48,below,SD
29,SD29,1.33,below,SD
30,SD30,1.5,above,SD
31,SD31,1.6,below,SD
32,SD32,1.24,below,SD
33,SD33,1.56,above,SD
34,SD34,1.58,below,SD
35,SD35,1.43,above,SD
36,SD36,1.3,above,SD
37,SD37,2.12,below,SD
38,SD38,1.63,below,SD
39,SD39,1.3,above,SD
40,SD40,1.16,below,SD
41,SD41,1.13,below,SD
42,SD42,1.43,below,SD
43,SD43,1.07,below,SD
44,SD44,1.25,below,SD
45,SD45,1.18,below,SD
46,SD46,1.17,above,SD
47,SD47,1,below,SD
48,SD48,1.43,above,SD
49,SD49,1.18,above,SD
50,SD50,1.17,below,SD
51,SD51,1.78,below,SD
52,SD52,1.67,above,SD
53,SD53,1,above,SD
54,SD54,1.8,below,SD
55,SD55,0.8,above,SD
56,SD56,0.95,above,SD
57,SD57,1.8,below,SD
58,SD58,,above,SD
59,SD59,,below,SD
60,SD60,,below,SD
61,SD61,,below,SD
62,SD62,,below,SD
63,SD63,,below,SD
64,SD64,,below,SD
65,SD65,0.93,below,SD
66,SD66,1.35,below,SD
67,SD67,1.33,below,SD
68,SD68,1.09,below,SD
69,SD69,1.41,below,SD
70,SD70,1.3,below,SD
71,SD71,1.2,below,SD
72,SD72,1.27,above,SD
73,SD73,0.7,below,SD
74,SD74,1.05,below,SD
75,SD75,1.68,below,SD
76,SD76,1.57,below,SD
77,SD77,1.22,above,SD
78,SD78,1.46,below,SD
79,SD79,2.32,below,SD
80,SD80,2.7,below,SD
81,SD81,1.57,above,SD
82,SD82,1.53,below,SD
83,SD83,1.63,below,SD
84,SD84,1.23,above,SD
85,SD85,1.77,below,SD
86,SD86,1.53,below,SD
87,SD87,1.39,below,SD
88,SD88,1.18,above,SD
89,SD89,1.85,below,SD
90,SD90,1.82,below,SD
91,SD91,,below,SD
92,SD92,1.74,below,SD
93,SD93,1.76,below,SD
94,SD94,1.16,below,SD
95,SD95,,below,SD
96,SD96,1.2,below,SD
97,SD97,1.42,below,SD
98,SD98,0.95,below,SD
99,SD99,2.43,below,SD
100,SD100,,below,SD
101,SD101,1.48,below,SD
102,SD102,1.33,below,SD
103,SD103,,below,SD
104,SD104,0.94,below,SD
105,SD105,,below,SD
106,SD106,1.15,below,SD
107,SD107,,below,SD
108,SD108,1.87,below,SD
109,SD109,1.23,below,SD
110,SD110,1.83,below,SD
111,SD111,1.47,below,SD
112,SD112,,below,SD
113,SD113,1.28,below,SD
114,SD114,,below,SD
115,SD115,1.57,below,SD
116,SD116,,below,SD
117,SD117,1.75,below,SD
118,SD118,1.8,below,SD
119,SD119,1.49,below,SD
120,SD120,1.54,below,SD
1,SPB1,2.19,above,SPB
2,SPB2,1.66,above,SPB
3,SPB3,1.78,above,SPB
4,SPB4,1.73,above,SPB
5,SPB5,8.63,above,SPB
6,SPB6,1.96,below,SPB
7,SPB7,5.17,above,SPB
8,SPB8,3.5,above,SPB
9,SPB9,2.78,above,SPB
10,SPB10,5.5,above,SPB
11,SPB11,2.75,below,SPB
12,SPB12,3,above,SPB
13,SPB13,4.71,above,SPB
14,SPB14,4.86,above,SPB
15,SPB15,4.63,below,SPB
16,SPB16,1.92,below,SPB
17,SPB17,3,below,SPB
18,SPB18,1.48,below,SPB
19,SPB19,2.35,below,SPB
20,SPB20,2.9,below,SPB
21,SPB21,2.35,below,SPB
22,SPB22,2.11,above,SPB
23,SPB23,1.92,below,SPB
24,SPB24,19.38,below,SPB
25,SPB25,2.33,above,SPB
27,SPB27,3.17,below,SPB
28,SPB28,1.73,below,SPB
29,SPB29,2.31,below,SPB
30,SPB30,1.9,below,SPB
31,SPB31,2.23,below,SPB
32,SPB32,2.04,below,SPB
33,SPB33,2.38,above,SPB
34,SPB34,4.9,above,SPB
35,SPB35,5.96,below,SPB
36,SPB36,1.77,below,SPB
37,SPB37,2.64,above,SPB
38,SPB38,4.01,above,SPB
39,SPB39,1.94,below,SPB
40,SPB40,1.8,above,SPB
41,SPB41,14.14,below,SPB
42,SPB42,6.5,above,SPB
43,SPB43,2.08,above,SPB
44,SPB44,6.75,above,SPB
45,SPB45,2.65,below,SPB
46,SPB46,2.43,below,SPB
47,SPB47,2.35,above,SPB
48,SPB48,2.79,above,SPB
49,SPB49,2.37,below,SPB
50,SPB50,1.8,below,SPB
51,SPB51,1.89,below,SPB
52,SPB52,2.69,above,SPB
53,SPB53,1.8,below,SPB
54,SPB54,2.46,below,SPB
55,SPB55,1.93,below,SPB
56,SPB56,1.84,above,SPB
57,SPB57,3.56,below,SPB
58,SPB58,2.38,below,SPB
59,SPB59,1.77,above,SPB
60,SPB60,4.64,above,SPB
61,SPB61,1.7,below,SPB
62,SPB62,6.59,above,SPB
63,SPB63,2.34,below,SPB
64,SPB64,3.32,below,SPB
65,SPB65,4.36,below,SPB
66,SPB66,5.43,below,SPB
67,SPB67,1.95,below,SPB
68,SPB68,1.75,above,SPB
69,SPB69,2.35,below,SPB
70,SPB70,1.7,below,SPB
71,SPB71,6.77,below,SPB
72,SPB72,2.27,below,SPB
73,SPB73,1.5,below,SPB
74,SPB74,1.44,below,SPB
75,SPB75,1.73,above,SPB
76,SPB76,1.37,below,SPB
77,SPB77,1.4,below,SPB
78,SPB78,1.94,below,SPB
79,SPB79,1.67,below,SPB
80,SPB80,1.78,below,SPB
81,SPB81,4.91,below,SPB
82,SPB82,8.73,below,SPB
83,SPB83,2.08,below,SPB
84,SPB84,4.96,below,SPB
85,SPB85,6.4,below,SPB
86,SPB86,1.87,below,SPB
87,SPB87,1.59,below,SPB
88,SPB88,3.61,below,SPB
89,SPB89,2.02,below,SPB
90,SPB90,4.77,below,SPB
91,SPB91,3.78,below,SPB
92,SPB92,2.38,below,SPB
93,SPB93,1.94,below,SPB
94,SPB94,2.8,below,SPB
95,SPB95,1.7,below,SPB
96,SPB96,3.22,below,SPB
97,SPB97,2.63,below,SPB
98,SPB98,6.62,below,SPB
99,SPB99,2.7,below,SPB
1,T1,,,T
2,T2,,,T
3,T3,,,T
4,T4,,,T
5,T5,,,T
6,T6,,,T
7,T7,,,T
8,T8,,,T
9,T9,,,T
10,T10,,,T
11,T11,,,T
12,T12,,,T
13,T13,,,T
14,T14,,,T
15,T15,,,T
16,T16,,,T
17,T17,,,T
18,T18,,,T
19,T19,,,T
20,T20,,,T
21,T21,,,T
22,T22,,,T
23,T23,,,T
24,T24,,,T
25,T25,,,T
26,T26,,,T
27,T27,,,T
28,T28,,,T
29,T29,,,T
30,T30,,,T
31,T31,,,T
32,T32,,,T
33,T33,,,T
34,T34,,,T
35,T35,,,T
36,T36,,,T
37,T37,,,T
38,T38,,,T
39,T39,,,T
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