Stata Power和Sample-Size引用手册版本13说明书
StataCorp will be an exhibitor at the APSA 2024 annual meeting. We are also hosting a preconference short course. Attending from StataCorp: Gustavo Sánchez, Director, Technical Services. For more information about the meeting, visit the APSA 2024 Annual Meeting page. Try...
. simulate reject=r(reject) pvalue=r(pvalue), reps(1500) seed(1234): powersimu, n(10) b1(0) d1(.2) d2(.5) d3(1.0) alpha(0.05) Then, we can estimate the proportion of observations with reject = 1 using ci proportion. The point estimate of proportion is .0546667, and a 95...
y u u A B σσγ =+ =++x βσu σu 均值方程中可以包括ARCH 项或ARMA 项，模型如下：2222 0Mean equation :()(,),~(0,)Variance equation :(,)(,)t t i t i t t t i t y g ARMA p q u u A B ψσσσγ- =+++ =++∑x βσu σu 其中，2 ()t i g σ-表...
A = sigmoid(X@theta) first = y*np.log(A) second = (1-y)*np.log(1-A) res = np.sum(lamda*(np.power(theta[1:,0],2))/(2*m))#正则项 return -np.sum(first+second)/m + res def grad_decent(X,y,theta,lamda,learning_rate,num,index):#梯度下降 index参数代表这是第几个分类器...
19.3The power,precision,and sample-size commands 19.1Overview An immediate command is a command that obtains data not from the data stored in memory but from numbers typed as arguments.Immediate commands,in effect,turn Stata into a glorified hand calculator.There are many instances when you ...
One aspect of a univariate time series that these autoregressive models do not model is a change in the variance over time. 这些自相关模型假设所有时间序列方差不变。 Classically, a time series with modest changes in variance can sometimes be adjusted using a power transform, such as by taking ...
should vary by the fourth power of the frequency observation ratios, so that for annual data a smoothing parameter of 6.25 is recommended,while for monthly data a smoothing parameter of 129,600 is recommended.If one of these data frequencies are evident in the data, the appropriate...
链接: https://pan.baidu.com/s/1TbEjE2W0e837W-X5PWXwmw 提取码: vq7r stata中文视频教程（高级） B9_MCBS_07_gendata_P_.abc B9_MCBS_06_power_P_.abc B9_MCBS_05_mc_02_P_.abc B9_MCBS_05_mc_01_P_.abc B9_MCBS_04_jk_P_.abc B9_MCBS_03_permute_P_.abc B9_MCBS_02_...
Please see Stata(console) for Intel-based Mac for additional notes on installing Stata(console) on an Intel-based Mac if you have already installed Stata(console) on a PowerPC-based Mac. RequirementsYou must already have Stata/SE or Stata/MP for the Mac installed and your license initialized...