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col:=sh000001setsysparampn_stockcol,pn_date20240930t,pn_cyclecy,ndaydays日期datetostrsp_timecol,标getdistinceindexrowlen1n1be//,记录的均值ifrowbandrow,j2:=meanttbrow-,…
为涨幅%setsysparampn_stocksz000002,52697codecode//b返回sz000002,对数收益率%setsysparampn_stocksz000002,…
t2:=arraya2b2c,a3c33b3a,43a5c53b5return,media2024-03-20_wefcpvnqqtg5qgjaimage85,…
histaarrayofrealbintor,统计的数据@@b@@,media2024-03-20_wefcpvnqqtg5qgjaimage212,…
的随机数randbetaarealbrealrow,实数大于0@@b@@,arrayquotaquotquotbquotcode,media2024-03-20_wefcpvnqqtg5qgjaimage293,quotimg参考refsf_betapdfref,sf_betacdfref,sf_betainvref,…
1567//b是总和,是平方和sumsandsquaresabcreturn,media2025-09-18_h5nmepic9upmpqw0image6,…
7576//b是返回,返回的标准差meanandstddevabcreturn,media2025-09-18_h5nmepic9upmpqw0image15,…
arrayquotaquotquotbquotcode,media2024-03-20_wefcpvnqqtg5qgjaimage240,分布函数refrefsf_normpdfref,sf_normcdfref,sf_norminvref,…
的实现比较简单可用babcdecode,代码如下codedefbatch_encodingitems,itemsiiftypeitem__name,analysenetimporttslpy3frombatch_encodingimport,nday4tdatetostrsp_timeclose,…
arrayquotaquotquotbquotcode,media2024-03-20_wefcpvnqqtg5qgjaimage257,quotimg参考refsf_binopdfref,sf_binocdfref,sf_binoinvref,…