我有以下数据框:
COLA COLB COLC
a cfg 100
b gdd 100
c ert 100
d yrt 100
a yui 100
d ouo 100
a ooo 100
b qwe 100
我想合并COLA中的所有项目(groupby?),然后在COLC中将它们的值求和,最后得到
COLA COLC
a 300
b 200
c 100
d 200
我正在尝试:
df.groupby('COLA').sum('COLC')
答案 0 :(得分:2)
GroupBy对象以与DataFrame相同的方式支持列索引,并返回修改后的GroupBy对象
@ContextConfiguration(
initializers = ConfigFileApplicationContextInitializer.class)
@SpringBootTest(webEnvironment = SpringBootTest.WebEnvironment.DEFINED_PORT)
class BaseSpec extends Specification {
@Shared
WireMockServer wireMockServer
def setupSpec() {
wireMockServer = new WireMockServer(options().port(PORT).jettyHeaderBufferSize(12345)
.notifier(new ConsoleNotifier(new Boolean(System.getenv(“IT_WIREMOCK_LOG”) ?: ‘false’)))
.extensions(new ResponseTemplateTransformer(true)))
wireMockServer.start()
}