Question

matlab 如何从如下txt中提取指定数据 并且汇总，作图

有若干txt文件，内有若干数据，每一数据在各txt中名称一致，数据和数据名用的是逗号分隔，请教如何读取若干指定的txt文件，并且从中抽取指定的数据名，进行汇总？
txt内的文件内容例子
谢谢！
"03-27-15","17:50:22","NeVVLR_Cnt_Denominator",13.0
"03-27-15","17:50:22","NeVVLR_Cnt_HighMaxFailOnPass",0.0
"03-27-15","17:50:22","NeVVLR_Cnt_HighMinSmplsOnFail",0.0
"03-27-15","17:50:22","NeVVLR_Cnt_LowMaxFailOnPass",0.0
"03-27-15","17:50:22","NeVVLR_Cnt_LowMinSmplsOnFail",0.0
"03-27-15","17:50:22","NeVVLR_Cnt_Numerator",3.0
"03-27-15","17:50:22","NeVVLR_Cnt_OCV_TotalFailure",0.0
"03-27-15","17:50:22","NeVVLR_Cnt_PerfMaxFailOnPass",0.0
"03-27-15","17:50:22","NeVVLR_Cnt_PerfMinSmplsOnFail",0.0
"03-27-15","17:50:22","NeVVLR_Cnt_TestsTotal",3.0
"03-27-15","17:50:22","NeVVLR_Pct_OCV1_SIH_Threshold",5.499268
"03-27-15","17:50:22","NeVVLR_Pct_OCV1_SIL_Threshold",-9.002686
"03-27-15","17:50:22","NeVVLR_Pct_OCV2_SIH_Threshold",5.999756
"03-27-15","17:50:22","NeVVLR_Pct_OCV2_SIL_Threshold",-9.002686
"03-27-15","17:50:22","NeVVLR_Pct_OCV1_SIH_EWMA",-0.808541
"03-27-15","17:50:22","NeVVLR_Pct_OCV1_SIL_EWMA",0.319146
"03-27-15","17:50:22","NeVVLR_Pct_OCV1SIH_EWMA_Max_FOM",0.0
"03-27-15","17:50:22","NeVVLR_Pct_OCV1SIH_EWMA_Min_FOM",-0.808541

Answer 1

已知一个txt文件，里边内容为：

在matlab中写如下代码：

dt = load('dt0.txt');   // load中写入文件的路径

plot(dt(:,1),dt(:,2));  // plot(x,y)，其中dt（：，1）表示第一列中所有的数据

                             //dt(：，2)同理，表示第二列中所有的数据