Nothing
Code
show(seq_ttest(rnorm(20), d = 0.8))
Output
***** Sequential One Sample t-test *****
formula: rnorm(20)
test statistic:
log-likelihood ratio = -5.783, decision = accept H0
SPRT thresholds:
lower log(B) = -2.944, upper log(A) = 2.944
Log-Likelihood of the:
alternative hypothesis = -5.676
null hypothesis = 0.107
alternative hypothesis: true mean is not equal to 0.
specified effect size: Cohen's d = 0.8
degrees of freedom: df = 19
sample estimates:
mean of x
0.05238
*Note: to get access to the object of the results use the @ or [] instead of the $ operator.
Code
show(seq_ttest(x_special_name, d = 0.8, alternative = "less", mu = 2))
Output
***** Sequential One Sample t-test *****
formula: x_special_name
test statistic:
log-likelihood ratio = 12.358, decision = accept H1
SPRT thresholds:
lower log(B) = -2.944, upper log(A) = 2.944
Log-Likelihood of the:
alternative hypothesis = -17.916
null hypothesis = -30.275
alternative hypothesis: true mean is less than 2.
specified effect size: Cohen's d = 0.8
degrees of freedom: df = 19
sample estimates:
mean of x
-0.50342
*Note: to get access to the object of the results use the @ or [] instead of the $ operator.
Code
show(seq_ttest(x, d = 0.8, alternative = "greater"))
Output
***** Sequential One Sample t-test *****
formula: x
test statistic:
log-likelihood ratio = -9.385, decision = accept H0
SPRT thresholds:
lower log(B) = -2.944, upper log(A) = 2.944
Log-Likelihood of the:
alternative hypothesis = -10.711
null hypothesis = -1.326
alternative hypothesis: true mean is greater than 0.
specified effect size: Cohen's d = 0.8
degrees of freedom: df = 19
sample estimates:
mean of x
-0.20286
*Note: to get access to the object of the results use the @ or [] instead of the $ operator.
Code
show(seq_ttest(x_special_name, y_secial_name, d = 0.8))
Output
***** Sequential Two Sample t-test *****
formula: x_special_name and y_secial_name
test statistic:
log-likelihood ratio = -3.2, decision = accept H0
SPRT thresholds:
lower log(B) = -2.944, upper log(A) = 2.944
Log-Likelihood of the:
alternative hypothesis = 3.455
null hypothesis = 6.655
alternative hypothesis: true difference in means is not equal to 0.
specified effect size: Cohen's d = 0.8
degrees of freedom: df = 38
sample estimates:
mean of x mean of y
0.14016 0.13999
*Note: to get access to the object of the results use the @ or [] instead of the $ operator.
Code
show(seq_ttest(x, y, d = 0.8, alternative = "less"))
Output
***** Sequential Two Sample t-test *****
formula: x and y
test statistic:
log-likelihood ratio = -5.225, decision = accept H0
SPRT thresholds:
lower log(B) = -2.944, upper log(A) = 2.944
Log-Likelihood of the:
alternative hypothesis = -6.486
null hypothesis = -1.261
alternative hypothesis: true difference in means is less than 0.
specified effect size: Cohen's d = 0.8
degrees of freedom: df = 38
sample estimates:
mean of x mean of y
0.11723 -0.14143
*Note: to get access to the object of the results use the @ or [] instead of the $ operator.
Code
show(seq_ttest(x ~ y, d = 0.8))
Output
***** Sequential Two Sample t-test *****
formula: x ~ y
test statistic:
log-likelihood ratio = -1.596, decision = continue sampling
SPRT thresholds:
lower log(B) = -2.944, upper log(A) = 2.944
Log-Likelihood of the:
alternative hypothesis = 0.499
null hypothesis = 2.095
alternative hypothesis: true difference in means is not equal to 0.
specified effect size: Cohen's d = 0.8
degrees of freedom: df = 18
sample estimates:
mean of x mean of y
0.18073 0.16120
*Note: to get access to the object of the results use the @ or [] instead of the $ operator.
Code
show(calc_seq_ttest(build_prototype_seq_ttest_arguments()))
Output
***** Sequential Two Sample t-test *****
formula: x and y
test statistic:
log-likelihood ratio = 2.193, decision = continue sampling
SPRT thresholds:
lower log(B) = -1.558, upper log(A) = 2.773
Log-Likelihood of the:
alternative hypothesis = -3.201
null hypothesis = -5.393
alternative hypothesis: true difference in means is not equal to 0.
specified effect size: Cohen's d = 0.8
degrees of freedom: df = 18
sample estimates:
mean of x mean of y
-0.13828 1.05060
*Note: to get access to the object of the results use the @ or [] instead of the $ operator.
Code
show(calc_seq_ttest(build_prototype_seq_ttest_arguments(), verbose = FALSE))
Output
***** Sequential Two Sample t-test *****
formula: x and y
test statistic:
log-likelihood ratio = 2.193, decision = continue sampling
SPRT thresholds:
lower log(B) = -1.558, upper log(A) = 2.773
Code
show(seq_anova(y ~ x, f = 0.25, data = data))
Output
***** Sequential ANOVA *****
formula: y ~ x
test statistic:
log-likelihood ratio = 5.579, decision = accept H1
SPRT thresholds:
lower log(B) = -2.944, upper log(A) = 2.944
Log-Likelihood of the:
alternative hypothesis = -1.768
null hypothesis = -7.348
alternative hypothesis: true difference in means is not equal to 0.
specified effect size: Cohen's f = 0.25
empirical Cohen's f = 0.255582, 95% CI[0.1175887, 0.3478401]
Cohen's f adjusted = 0.228
degrees of freedom: df1 = 4, df2 = 325
SS effect = 20.49968, SS residual = 313.8243, SS total = 334.324
*Note: to get access to the object of the results use the @ or [] instead of the $ operator.
Code
show(seq_anova(happiness ~ job_satisfaction, f = 0.25, data = df_job))
Output
***** Sequential ANOVA *****
formula: happiness ~ job_satisfaction
test statistic:
log-likelihood ratio = 4.66, decision = accept H1
SPRT thresholds:
lower log(B) = -2.944, upper log(A) = 2.944
Log-Likelihood of the:
alternative hypothesis = -6.628
null hypothesis = -11.288
alternative hypothesis: true difference in means is not equal to 0.
specified effect size: Cohen's f = 0.25
empirical Cohen's f = 0.6758475, 95% CI[0.3452897, 0.9720489]
Cohen's f adjusted = 0.631
degrees of freedom: df1 = 1, df2 = 46
SS effect = 19.50919, SS residual = 42.71121, SS total = 62.2204
*Note: to get access to the object of the results use the @ or [] instead of the $ operator.
Code
show(seq_anova(y ~ x, f = 0.1, data = data))
Output
***** Sequential ANOVA *****
formula: y ~ x
test statistic:
log-likelihood ratio = -0.036, decision = continue sampling
SPRT thresholds:
lower log(B) = -2.944, upper log(A) = 2.944
Log-Likelihood of the:
alternative hypothesis = -0.799
null hypothesis = -0.763
alternative hypothesis: true difference in means is not equal to 0.
specified effect size: Cohen's f = 0.1
empirical Cohen's f = 0.1958652, 95% CI[NA, 0.3634934]
Cohen's f adjusted = 0
degrees of freedom: df1 = 3, df2 = 76
SS effect = 3.948363, SS residual = 102.9206, SS total = 106.869
*Note: to get access to the object of the results use the @ or [] instead of the $ operator.
Code
show(seq_anova(y ~ x, f = 0.25, alpha = 0.3, power = 0.95, data = data))
Output
***** Sequential ANOVA *****
formula: y ~ x
test statistic:
log-likelihood ratio = 7.792, decision = accept H1
SPRT thresholds:
lower log(B) = -2.639, upper log(A) = 1.153
Log-Likelihood of the:
alternative hypothesis = -5.07
null hypothesis = -12.862
alternative hypothesis: true difference in means is not equal to 0.
specified effect size: Cohen's f = 0.25
empirical Cohen's f = 0.4366689, 95% CI[0.2449371, 0.6194111]
Cohen's f adjusted = 0.42
degrees of freedom: df1 = 1, df2 = 118
SS effect = 25.09296, SS residual = 131.5974, SS total = 156.6904
*Note: to get access to the object of the results use the @ or [] instead of the $ operator.
Code
show(seq_anova(y ~ x, f = 0.25, data = data, verbose = FALSE))
Output
***** Sequential ANOVA *****
formula: y ~ x
test statistic:
log-likelihood ratio = 10.2, decision = accept H1
SPRT thresholds:
lower log(B) = -2.944, upper log(A) = 2.944
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.