def run(self, dfx, ref_num=0):
msg = {}
x_numer_cols, x_cate_cols = ParseDFtypes(dfx)
if x_numer_cols == []:
logging.error(
'All input dfx are no numeric columns, Please check your input dfx data!'
)
msg['error'] = '输入的dfx所有的列都不是数值型数据，请检查输入数据'
return {'result': pd.DataFrame(), 'msg': msg}
else:
if x_cate_cols != []:
logging.warning(
'input dfx has non-numeric columns: %s, will ignore these columns!'
% x_cate_cols)
msg['warning'] = '输入的dfx包含了非数值型的列: %s, 将会被自动忽略！' % x_cate_cols
rs = []
for i in x_numer_cols:
F, p = ttest_1samp(dfx[i], ref_num)
columns = ['t-值', 'p-值']
rs.append(pd.DataFrame([F, p], index=columns, columns=[i]).T)
res = pd.concat(rs)
res['p-值'] = res['p-值'].apply(lambda x: '{:.5f}'.format(x))
return {'result': res.round(5), 'msg': msg}
def run(self,
df):
numer_cols,cate_cols = ParseDFtypes(df)
msg = {}
if numer_cols == []:
logging.error('All input DataFrame are non-numeric columns, Please check your input data!')
msg['error'] = '输入的所有的列都不是数值型数据，请检查输入数据df！'
result = pd.DataFrame()
else:
if cate_cols != []:
logging.warning('Input DataFrame has non-numeric columns, such as: %s will be ignored!' % cate_cols)
msg['warning'] = '输入的数据包含非数值型数据, 比如列: %s 将会被忽略!' % cate_cols
dfn = df[numer_cols]
desb = dfn.describe().T
desb['skew'] = dfn.skew()
desb['kurt'] = dfn.kurt()
desb['var'] = dfn.var()
desb['mad'] = dfn.mad()
result = desb
result.columns = ['样本量','、平均值', '标准差', '最小值', '1/4分位数',
'中位数', '3/4分位数', '最大值','偏度','峰度','方差','平均绝对误差']
return {'result':result, 'msg':msg}
def run(self, df, by, method='count'):
numer_cols, cate_cols = ParseDFtypes(df)
msg = {}
if numer_cols == []:
logging.error(
'All input DataFrame are no numeric columns, Please check your input data!'
)
result = pd.DataFrame()
msg['error'] = '输入的所有的列都不是数值型数据，请检查输入数据df！'
else:
if method != 'count':
s1 = set(by)
s2 = set(numer_cols)
if s2.issubset(s1):
logging.error(
'by columns contains all numeric columns, no numeric data to calculate!'
)
msg['error'] = '参数by占用了所有数值型的列， 所以没有额外的数值型列来计算 %s 的结果！' % method
result = pd.DataFrame()
else:
dfg = df.groupby(by)
result = dfg.agg(method)
result = result.round(5)
else:
result = df.groupby(by).size().to_frame(name='样本量')
return {'result': result, 'msg': msg}
def run(self,
dfx):
msg = {}
x_numer_cols, x_cate_cols = ParseDFtypes(dfx)
if x_numer_cols ==[]:
logging.error('All input dfx are no numeric columns, Please check your input dfx data!')
msg['error'] = '输入的dfx所有的列都不是数值型数据，请检查输入数据'
return {'result':pd.DataFrame(), 'msg':msg}
else:
if x_cate_cols != []:
logging.warning('input dfx has non-numeric columns: %s, will ignore these columns!' % x_cate_cols)
msg['warning'] = '输入的dfx包含了非数值型的列: %s, 将会被自动忽略！' % x_cate_cols
rr = []
for i in x_numer_cols:
dfi = dfx[i].dropna()
l = len(dfi)
ks_w, ks_p = kstest(dfi,'norm')
ws_w,ws_p = shapiro(dfi)
cols = ['样本量', 'KS检验：统计量','KS检验：p值','Shapro-Wilk检验：统计量', 'Shapro-Wilk检验：p-值']
dfr = pd.DataFrame([l, ks_w, ks_p,ws_w,ws_p],index=cols,columns=[i]).T
rr.append(dfr)
res = pd.concat(rr)
res['KS检验：p值'] = res['KS检验：p值'].apply(lambda x:'{:.5f}'.format(x))
res['Shapro-Wilk检验：p-值'] = res['Shapro-Wilk检验：p-值'].apply(lambda x:'{:.5f}'.format(x))
return {'result':res.round(5), 'msg':msg}
def run(self, df, bins=10):
self.bins = bins
msg = {}
numeric_cols, category_cols = ParseDFtypes(df)
if numeric_cols != []:
logging.warning(
'column %s is not category type, force convert to category by bins of %d'
% (numeric_cols, self.bins))
msg['warning'] = '列 %s 不是定类（category）数据, 将强制通过bins:%d为转化为定类型数据' % (
numeric_cols, self.bins)
res = []
for col in df.columns:
if col in numeric_cols:
vc = df[col].value_counts(bins=self.bins)
dfc = vc.to_frame(name='frequency')
dfc.index = dfc.index.map(str)
_sum = dfc.frequency.sum()
dfc['percentage'] = dfc.frequency.apply(lambda x: x / _sum)
else:
vc = df[col].value_counts()
dfc = vc.to_frame(name='frequency')
_sum = dfc.frequency.sum()
dfc['percentage'] = dfc.frequency.apply(
lambda x: x / _sum).round(5) * 100
index = pd.MultiIndex.from_product([[col], dfc.index],
names=['分析项', '分析组'])
dfc = dfc.set_index(index)
res.append(dfc)
df_res = pd.concat(res)
df_res.columns = ['频数', '占比(%)']
return {'result': df_res, 'msg': msg}
def run(self, df, x, y, extra_args={'alpha': 0.001}):
alpha = extra_args.get('alpha')
if not alpha:
alpha = 0.001
'''
x:
y: y的唯一个数只能为2
'''
msg = {}
dfx = df[x].reset_index(drop=True)
dfx = sm.add_constant(dfx, prepend=True)
dfx = dfx.rename(columns={'const': '截距'})
numeric_cols, category_cols = ParseDFtypes(dfx)
target = y[0]
tsy = df[target].reset_index(drop=True)
#convert dict
myd = {}
myd_reverse = {}
lst = list(tsy.unique())
for i, j in enumerate(lst):
myd[j] = i
myd_reverse[i] = j
# build init model
model = smf.OLS(tsy.map(myd), dfx[numeric_cols])
res = model.fit_regularized(
maxiter=1000,
alpha=alpha, #正则化系数
L1_wt=0) #L1_wt 0为l2 loss, 1为l1 loss
#predict result
prediction_probs = res.predict()
prediction_bins = pd.Series(
[1 if i >= 0.5 else 0 for i in prediction_probs],
name='predicted_bins')
tsy_predict = prediction_bins.map(myd_reverse)
tsy_predict.name = '预测的' + tsy.name
df_predict_result = pd.concat([tsy, tsy_predict], axis=1)
#confusion matrix
df_confusion_matrix = pd.DataFrame(confusion_matrix(tsy, tsy_predict),
index=tsy.unique(),
columns=tsy.unique())
#report
df_report = pd.DataFrame(list(
precision_recall_fscore_support(tsy, tsy_predict)),
index=['精确度', '召回率', 'F1-值',
'样本个数']).T.round(5)
df_report.index = df_report.index.map(myd_reverse)
#roc
fpr, tpr, thresholds = roc_curve(tsy.map(myd), prediction_probs)
roc_auc = auc(fpr, tpr)
logging.info("Area under the ROC curve : %f" % roc_auc)
i = np.arange(len(tpr)) # index for df
df_roc = pd.DataFrame({
'假阳性率': pd.Series(fpr, index=i),
'真阳性率': pd.Series(tpr, index=i)
})
#model description
tables = res.summary().tables
df_list = [pd.read_html(StringIO(t.as_html()))[0] for t in tables]
dfinfo1 = df_list[1].fillna('Variables').set_index(0)
dfinfo1 = dfinfo1.T.set_index('Variables').T
dfinfo1.index.name = '项'
dfinfo1.columns.name = '参数类型'
dfinfo1.columns = [
'回归系数', '标准误差', 'Z值', 'p值', '95%CI(下限)', '95%CI(上限)'
]
dfinfo1['or值'] = np.exp(res.params)
df_description = dfinfo1
df_report = df_report.append(df_report.sum().to_frame(name='总和/平均').T)
df_report['召回率'].loc['总和/平均'] = df_report['召回率'].loc['总和/平均'] / 2
df_report['F1-值'].loc['总和/平均'] = df_report['F1-值'].loc['总和/平均'] / 2
df_report = df_report.T
df_report['name'] = ['模型效果', '模型效果', '模型效果', '样本量']
df_confusion_matrix = df_confusion_matrix.append(
df_confusion_matrix.sum().to_frame(name='总和/平均').T)
df_confusion_matrix = df_confusion_matrix.T
df_confusion_matrix['name'] = ['混淆矩阵', '混淆矩阵']
df_confusion_matrix = df_confusion_matrix.append(
df_report).reset_index().set_index(['name', 'index'])
df_confusion_matrix = df_confusion_matrix.T
df_confusion_matrix.columns.names = [None, None]
df_predict_result = df_predict_result.round(5)
df_confusion_matrix = df_confusion_matrix.round(5)
df_roc = df_roc.round(5)
df_description = df_description.round(5)
#self._debug = df_confusion_matrix
return {
'tables': [
{
'table_info': 'Ringe回归分析结果汇总',
'table_json': df_description.to_json(),
'table_html': df_description.to_html(),
'chart': ['line', 'bar']
},
{
'table_info': 'Ringe回归预测效果汇总:',
'table_json':
df_confusion_matrix.T.reset_index().to_json(),
'table_html': df_confusion_matrix.to_html(),
'chart': []
},
{
'table_info': "ROC曲线（曲线下面积:%0.3f）" % roc_auc,
'table_json': df_roc.to_json(),
'table_html': df_roc.to_html(),
'chart': ['scatter']
},
],
'conf':
self.get_info(),
'msg':
msg
}, [{
'table_df': df_predict_result,
'label': '实际值与预测值'
}]
def run(self, dfx, dfy):
msg = {}
xl = len(dfx)
yl = len(dfy)
if xl != yl:
logging.error(
'the length of input X:%s is not equal the length of Y: %s ! '
% (xl, yl))
msg['error'] = '输入的dfx的长度为:%s 不等于输入的dfy的长度: %s ' % (xl, yl)
return {'result': pd.DataFrame(), 'msg': msg}
x_numer_cols, x_cate_cols = ParseDFtypes(dfx)
y_numer_cols, y_cate_cols = ParseDFtypes(dfy)
if (x_cate_cols != []) or (y_cate_cols != []):
logging.error(
'input x or y has non-numeric data, please check your input data'
)
msg['error'] = '输入的dfx或者dfy所有的列都不是数值型数据，请检查输入数据'
return {'result': pd.DataFrame(), 'msg': msg}
if len(x_numer_cols) != len(y_numer_cols):
logging.error(
'the number of columns for input X:%s is not equal Y: %s ! ' %
(x_numer_cols, y_numer_cols))
msg['error'] = '输入的dfx的可用的列为:%s ，这和输入的dfy可用的列: %s 在列数数量上不相等 ' % (
x_numer_cols, y_numer_cols)
return {'result': pd.DataFrame(), 'msg': msg}
else:
rr = []
for i, j in zip(x_numer_cols, y_numer_cols):
idx = '%s-配对-%s' % (i, j)
F, p = ttest_rel(dfx[i], dfy[j])
m1 = dfx[i].mean()
s1 = dfx[i].std()
m2 = dfy[j].mean()
s2 = dfy[j].std()
r1 = '%s±%s' % (round(m1, 3), round(s1, 3))
r2 = '%s±%s' % (round(m2, 3), round(s2, 3))
e = m1 - m2
columns = [
'配对1(平均值±标准差)', '配对2(平均值±标准差)', '差值(配对1-配对2)', 't-值', 'p-值'
]
dfr = pd.DataFrame([r1, r2, e, F, p],
index=columns,
columns=[idx]).T.round(5)
rr.append(dfr)
res = pd.concat(rr)
res['p-值'] = res['p-值'].apply(lambda x: '{:.5f}'.format(x))
return {'result': res, 'msg': msg}
def run(self, dfx, tsy):
tsy = tsy.reset_index(drop=True)
dfx = dfx.reset_index(drop=True)
msg = {}
xl = len(dfx)
yl = len(tsy)
if xl != yl:
logging.error(
'the length of input X:%s is not equal the length of Y: %s ! '
% (xl, yl))
msg['error'] = '输入的dfx的长度为:%s 不等于输入的tsy的长度: %s ' % (xl, yl)
return {'result': pd.DataFrame(), 'msg': msg}
if not isSeries(tsy) or not isCategory(tsy):
logging.error(
'input tsy is not a pandas Series or not a category data!')
msg['error'] = '输入的tsy不是定类型数据或者Series类型'
return {'result': pd.DataFrame(), 'msg': msg}
else:
x_numer_cols, x_cate_cols = ParseDFtypes(dfx)
if x_numer_cols == []:
logging.error(
'All input dfx are no numeric columns, Please check your input dfx data!'
)
msg['error'] = '输入的dfx所有的列都不是数值型数据，请检查输入数据'
return {'result': pd.DataFrame(), 'msg': msg}
else:
if x_cate_cols != []:
logging.warning(
'input dfx has non-numeric columns: %s, will ignore these columns!'
% x_cate_cols)
msg['warning'] = '输入的dfx包含了非数值型的列: %s, 将会被自动忽略！' % x_cate_cols
name = tsy.name
dfu = dfx[x_numer_cols].join(tsy)
m = dfu.groupby(name).mean().T
s = dfu.groupby(name).std().T
def change(ts):
v = []
for i in ts.index:
r = '%s±%s' % (round(ts.loc[i],
2), round(s[ts.name].loc[i], 2))
v.append(r)
return pd.Series(v, index=ts.index)
m1 = m.apply(change)
rs = []
for i in x_numer_cols:
model = ols('%s ~ %s' % (i, tsy.name), dfu).fit()
anovat = anova_lm(model)
anovat.columns = ['自由度', '平方和', '均方和', 'F-值', 'p-值']
rs.append(anovat.iloc[0].to_frame(name=i).T)
res = m1.join(pd.concat(rs))
res['p-值'] = res['p-值'].apply(lambda x: '{:.5f}'.format(x))
return {'result': res.round(5), 'msg': msg}
def run(self, dfx, tsy):
tsy = tsy.reset_index(drop=True)
dfx = dfx.reset_index(drop=True)
msg = {}
xl = len(dfx)
yl = len(tsy)
if xl != yl:
logging.error(
'the length of input X:%s is not equal the length of Y: %s ! '
% (xl, yl))
msg['error'] = 'the length of input X:%s is not equal the length of Y: %s ! ' % (
xl, yl)
return {'result': pd.DataFrame(), 'msg': msg}
if not isSeries(tsy) or not isCategory(tsy):
logging.error(
'input tsy is not a pandas Series or not a category data!')
msg['error'] = 'input tsy is not a pandas Series or not a category data!'
return {'result': pd.DataFrame(), 'msg': msg}
else:
x_numer_cols, x_cate_cols = ParseDFtypes(dfx)
if x_numer_cols == []:
logging.error(
'All input dfx are no numeric columns, Please check your input dfx data!'
)
msg['error'] = 'All input dfx are no numeric columns, Please check your input dfx data!'
return {'result': pd.DataFrame(), 'msg': msg}
else:
if x_cate_cols != []:
logging.warning(
'input dfx has non-numeric columns: %s, will ignore these columns!'
% x_cate_cols)
msg['warning'] = 'input dfx has non-numeric columns: %s, will ignore these columns!' % x_cate_cols
name = tsy.name
dfu = dfx[x_numer_cols].join(tsy)
m = dfu.groupby(name).mean().T
s = dfu.groupby(name).std().T
def change(ts):
v = []
for i in ts.index:
r = '%s±%s' % (round(ts.loc[i],
2), round(s[ts.name].loc[i], 2))
v.append(r)
return pd.Series(v, index=ts.index)
m1 = m.apply(change)
rs = []
for i in x_numer_cols:
dd = [dfu[dfu[tsy.name] == c][i] for c in tsy.unique()]
F, p = levene(*dd)
columns = ['F-值', 'p-值']
rs.append(
pd.DataFrame([F, p], index=columns, columns=[i]).T)
res = m1.join(pd.concat(rs))
return {'result': res, 'msg': msg}
def run(self,
df,
x,
y,
extra_args={
'method': 'pearson',
'crosstab': False
}):
method = extra_args.get('method')
crosstab = extra_args.get('crosstab')
m = get_corr_func(method)
#msg={'error':None,'warning':None}
msg = {}
dfx = df[x]
dfy = df[y]
if m:
if method == 'pearson':
x_numer_cols, x_cate_cols = ParseDFtypes(dfx)
y_numer_cols, y_cate_cols = ParseDFtypes(dfy)
if (x_numer_cols == []) | (y_numer_cols == []):
logging.error(
'All input DataFrame are no numeric columns, Please check your input data!'
)
msg['error'] = '输入的所有的列都不是数值型数据，请检查输入数据'
dfres = pd.DataFrame()
else:
res = []
if (x_cate_cols != []) | (x_cate_cols != []):
logging.warning(
'input DataFrame has no numeric data columns, will be ignored!'
)
msg['warning'] = '输入的数据包含非数值型数据, 将会被忽略!'
for xc in x_numer_cols:
for yc in y_numer_cols:
c, p = pearsonr(dfx[xc], dfy[yc])
res.append([xc, yc, c, p])
dfres = pd.DataFrame(res,
columns=['x-列', 'y-列', '相关系数', 'p-值'])
#dfres['p-值'] = dfres['p-值'].apply(lambda x:'{:.5f}'.format(x))
if crosstab:
dfres = dfres.pivot_table(index='x-列', columns='y-列')
else:
res = []
for xc in dfx.columns:
for yc in dfy.columns:
c, p = m(dfx[xc], dfy[yc])
res.append([xc, yc, c, p])
dfres = pd.DataFrame(res,
columns=['x-列', 'y-列', '相关系数', 'p-值'])
#dfres['p-值'] = dfres['p-值'].apply(lambda x:'{:.5f}'.format(x))
if crosstab:
dfres = dfres.pivot_table(index='x-列', columns='y-列')
else:
logging.error(
"unknow method, only 'pearson','kendall'、'spearman' are supported!"
)
dfres = pd.DataFrame()
msg['error'] = "未知的方法, （meathd参数）只支持 'pearson','kendall'、'spearman' 这三种!"
dfres = dfres.round(5)
return {
'tables': [{
'table_json': dfres.T.reset_index().to_json(),
'table_html': dfres.to_html(),
'table_info': '生成的字段之间的相关系数和p-值表',
'chart': ['heatmap', 'line', 'bar']
}],
'conf':
self.get_info(),
'msg':
msg
}, [{
'table_df': dfres,
'label': '生成的字段之间的相关系数和p-值表'
}]
def run(self,
dfx,
tsy):
tsy = tsy.reset_index(drop=True)
dfx = dfx.reset_index(drop=True)
msg = {}
if not isSeries(tsy) or not isCategory(tsy):
logging.error('input tsy is not a pandas Series or not a category data!')
msg['error'] = '输入的tsy不是定类型数据或者Series类型'
return {'result':pd.DataFrame(), 'msg':msg}
else:
if len(tsy.unique()) != 2:
msg['error'] = '输入的tsy不能被分成2组，请确保值tsy中的数unique后元素个数为2，目前的元素为%s' % tsy.unique()
return {'result':pd.DataFrame(), 'msg':msg}
else:
x_numer_cols, x_cate_cols = ParseDFtypes(dfx)
if x_numer_cols ==[]:
logging.error('All input dfx are no numeric columns, Please check your input dfx data!')
msg['error'] = 'dfx输入的每列都不是数值型数据，请检查输入数据'
return {'result':pd.DataFrame(), 'msg':msg}
else:
if x_cate_cols != []:
logging.warning('input dfx has non-numeric columns: %s, will ignore these columns!' % x_cate_cols)
msg['warning'] = '输入的dfx包含了非数值型的列: %s, 将会被自动忽略！' % x_cate_cols
name = tsy.name
dfu = dfx[x_numer_cols].join(tsy)
m = dfu.groupby(name).mean().T
s = dfu.groupby(name).std().T
def change(ts):
v= []
for i in ts.index:
r = '%s±%s' % (round(ts.loc[i],2),round(s[ts.name].loc[i],2))
v.append(r)
return pd.Series(v,index=ts.index)
m1 = m.apply(change)
rs = []
for i in x_numer_cols:
c1 = tsy.unique()[0]
c2 = tsy.unique()[1]
d1 = dfu[dfu[tsy.name] == c1][i]
d2 = dfu[dfu[tsy.name] == c2][i]
F, p = ttest_ind(d1,d2)
columns = ['t-值', 'p-值']
rs.append(pd.DataFrame([F,p],index=columns,columns=[i]).T)
res = m1.join(pd.concat(rs))
return {'result':res.round(5), 'msg':msg}
def run(self,
dfx,
dfy):
dfy = dfy.reset_index(drop=True)
dfx = dfx.reset_index(drop=True)
msg = {}
xl = len(dfx)
yl = len(dfy)
if xl != yl:
logging.error('the length of input X:%s is not equal the length of Y: %s ! ' % (xl,yl))
msg['error'] = '输入的dfx的长度为:%s 不等于输入的dfy的长度: %s ! ' % (xl,yl)
return {'result':pd.DataFrame(), 'msg':msg}
if len(dfy.columns) != 1:
logging.warning('input DataFrame dfy has more than one columns, but only the first colum will be used!')
msg['warning'] = '输入的dfy不只有一列数据，但是只有第一列会被使用'
_dfy = dfy[[dfy.columns[0]]]
else:
_dfy = dfy
x_numer_cols, x_cate_cols = ParseDFtypes(dfx)
y_numer_cols, y_cate_cols = ParseDFtypes(_dfy)
if (x_numer_cols ==[]) | (y_numer_cols == []):
logging.error('All input DataFrame are no numeric columns, Please check your input data!')
msg['error'] = '输入的所有的列都不是数值型数据，请检查输入数据'
dfmain =pd.DataFrame()
else:
_dfx = dfx[x_numer_cols]
X = sm.add_constant(_dfx, prepend=True)
y = _dfy
f = smf.OLS(y, X).fit()
y_pre = f.predict(X)
df_predicted = pd.DataFrame(y_pre,index = y.index, columns=['预测值'])
df_predicted = y.join(df_predicted)
tables = f.summary().tables
df_list = [pd.read_html(StringIO(t.as_html()))[0] for t in tables ]
def parse_table02(m_inf):
df1 = m_inf[[0,1]]
df1.columns=['items','values']
df2 = m_inf[[2,3]]
df2.columns=['items','values']
dfinfo1 = df1.append(df2).dropna().set_index('items')
return dfinfo1.T
dfinfo0 = parse_table02(df_list[0])
dfinfo2 = parse_table02(df_list[2])
dfinfo1 = df_list[1].fillna('Variables').set_index(0)
dfinfo1 = dfinfo1.T.set_index('Variables').T
dfmain = dfinfo1[dfinfo1.columns[:4]]
dfad = dfinfo0[['R-squared:',
'Adj. R-squared:',
'F-statistic:']].join(dfinfo2[['Durbin-Watson:',
'Jarque-Bera (JB):',
'Omnibus:']])
variables = f.model.exog
dfmain['VIF'] = [variance_inflation_factor(variables, i) for i in range(variables.shape[1])]
for i in dfad.columns:
dfmain[i] = dfad[i].iloc[0]
dfmain.columns = ['系数', '标准偏差', 't值', 'P值',
'VIF值', 'R平方:', '调整后R平方',
'F值:', 'Durbin-Watson检验:',
'Jarque-Bera (JB检验):', 'Omnibus检验']
dfmain.index.name = '变量'
dfmain = dfmain.rename(index = {'const':'常数项'})
dfmain = dfmain.round(5)
dfmain['P值'] = dfmain['P值'].apply(lambda x:'{:.5f}'.format(x))
return {'result':dfmain, 'msg':msg, 'model':f, 'predicted_result':df_predicted}
def run(self, df, x, y, *args):
'''
x:
y: y的唯一个数只能为2
'''
msg = {}
dfx = df[x].reset_index(drop=True)
dfx = sm.add_constant(dfx, prepend=True)
dfx = dfx.rename(columns={'const': '截距'})
numeric_cols, category_cols = ParseDFtypes(dfx)
target = y[0]
tsy = df[target].reset_index(drop=True)
types = list(tsy.unique())
types.sort()
# build init model
model = sm.MNLogit(tsy, dfx[numeric_cols])
res = model.fit()
#predict result
prediction_probs = res.predict()
tsy_predict = pd.DataFrame(prediction_probs).apply(
lambda x: types[x.idxmax()], axis=1)
tsy_predict.name = '预测的' + tsy.name
df_predict_result = pd.concat([tsy, tsy_predict], axis=1)
df_dumps = pd.get_dummies(tsy)[types]
df_prediction_probs = pd.DataFrame(prediction_probs, columns=types)
#fpr, tpr, thresholds =roc_curve(tsy.map(myd), prediction_probs)
#report
df_report = pd.DataFrame(list(
precision_recall_fscore_support(tsy, tsy_predict)),
index=['召回率', '精确度', 'F1-值', '样本个数'],
columns=types).T.round(5)
#confusion matrix
df_confusion_matrix = pd.DataFrame(res.pred_table(),
index=types,
columns=types)
#roc
roc_res_dict = {}
for i in types:
fpr, tpr, thresholds = roc_curve(df_dumps[i],
df_prediction_probs[i])
tpr = pd.DataFrame(tpr, columns=['真阳性率'])
fpr = pd.DataFrame(fpr, columns=['假阳性率'])
roc_auc = auc(fpr, tpr)
desc = "（曲线下面积:%0.3f）" % roc_auc
key = '%s_%s' % (i, desc)
r = fpr.join(tpr).T.reset_index()
roc_res_dict[key] = r
#model description
tables = res.summary().tables
df_list = [pd.read_html(StringIO(t.as_html()))[0] for t in tables]
dfinfo1 = df_list[1].fillna('Variables').set_index(0)
t = []
for i in res.params.columns:
odd = np.exp(res.params[[i]]).round(5)
odd.columns = ['or值']
odd = odd.T.reset_index().T
t.append(odd)
dft = pd.concat(t)
dft.index = dfinfo1.index
dft.columns = [7]
df_res = dfinfo1.reset_index().join(dft.reset_index(drop=True))
df_res = df_res.set_index(0)
change_lst = list(set(dfinfo1.index) - set(dfx.columns))
for i in change_lst:
df_res.loc[i] = [
'回归系数', '标准误差', 'Z值', 'p值', '95%CI(下限)', '95%CI(上限)', 'or值'
]
df_report = df_report.append(df_report.sum().to_frame(name='总和/平均').T)
df_report['召回率'].loc['总和/平均'] = df_report['召回率'].loc['总和/平均'] / 2
df_report['F1-值'].loc['总和/平均'] = df_report['F1-值'].loc['总和/平均'] / 2
df_report = df_report.T
df_report['name'] = ['模型效果', '模型效果', '模型效果', '样本量']
df_confusion_matrix = df_confusion_matrix.append(
df_confusion_matrix.sum().to_frame(name='总和/平均').T)
df_confusion_matrix = df_confusion_matrix.T
df_confusion_matrix['name'] = '混淆矩阵'
df_confusion_matrix = df_confusion_matrix.append(
df_report).reset_index().set_index(['name', 'index'])
df_confusion_matrix = df_confusion_matrix.T
df_confusion_matrix.columns.names = [None, None]
df_predict_result = df_predict_result.round(5)
df_confusion_matrix = df_confusion_matrix.round(5)
df_description = df_res.round(5)
tt = []
for i in roc_res_dict.keys():
df = roc_res_dict[i]
d = {
'table_info': i,
'table_json': df.to_json(),
'table_html': df.to_html(),
'chart': ['scatter']
}
tt.append(d)
#self.df_confusion_matrix = df_confusion_matrix
#self._df_description = df_description
return {
'tables':
[{
'table_info': '多元Logit回归分析结果汇总',
'table_json': df_description.reset_index().to_json(),
'table_html': df_description.to_html(),
'chart': ['line', 'bar']
}, {
'table_info': '多元Logit回归预测效果汇总:',
'table_json': df_confusion_matrix.T.reset_index().to_json(),
'table_html': df_confusion_matrix.to_html(),
'chart': []
}] + tt,
'conf':
self.get_info(),
'msg':
msg
}, [{
'table_df': df_predict_result,
'label': '实际值与预测值'
}]