Question

我正在尝试合并两个.Xdf文件，下面是相同的代码：

rxMergeXdf(inFile1 = "/poc/revor/data/se_lif_1.xdf",
inFile2 = "/poc/revor/data/ext_merchant_account_filtered.xdf", 
outFile = "/poc/revor/data/se_lif_2.xdf", matchVars = c("SE_NO"), 
type = "inner", missingsLow = TRUE,decreasing = FALSE,verbose = 1,
overwrite = TRUE,rowsPerOutputBlock = -1)

但执行时遇到此错误：

Memory buffer limit: 723679 Mb.
Merge Type: 1, Inner
Time to merge data file: 0.025 seconds
Merged data file: /poc/revor/data/se_lif_2.xdf
Error in rxCall("RxMergeXdf", params) :

创建输出.xdf文件，大小为260字节，但无法打开它。当尝试使用rxGetInfoXdf获取此.Xdf的详细信息时，它会显示以下消息：

Error in rxCall("RxReadXdf", params) :
  This is an old version of a DataFile, and cannot be read.

以下是两个.Xdf文件的文件结构：

1）se_lif_1.xdf

File name: /poc/revor/data/se_lif_1.xdf
Number of observations: 832787765
Number of variables: 2
Number of blocks: 4
Compression type: zlib
Variable information:
Var 1: SE_NO, Type: numeric, Low/High: (1030026553.0000, 9992702050.0000)
Var 2: TOT_CV_LIF, Type: numeric, Low/High: (-2348.7600, 40587.3900)
Data (10 rows starting with row 1):
        SE_NO TOT_CV_LIF
1  1030026553     314.45
2  1030049191      60.00
3  1030227870    2643.71
4  1040124257     389.00
5  1040608119      85.59

2）ext_merchant_account_filtered.xdf：

File name: /poc/revor/data/ext_merchant_account_filtered.xdf
Number of observations: 10000
Number of variables: 2
Number of blocks: 4
Compression type: zlib
Variable information:
Var 1: SE_NO, Type: numeric, Low/High: (3047490719.0000, 9380463753.0000)
Var 2: SEIMS_INDUS_DS_CD, Type: character
Data (10 rows starting with row 1):
        SE_NO SEIMS_INDUS_DS_CD
1  5510918899               499
2  3132775164               915
3  4107745093               930
4  3125354860               248
5  5510918923               499

任何人都可以帮我解决这个问题。我查看了代码，但每件事看起来都很好。

感谢您在Advance中提供的帮助...... :)

干杯，

阿米特

Answer 1

当我合并2个数据帧时，我遇到了同样的问题。当右数据框中左数据帧的合并变量没有匹配值时发生问题，即输出数据帧为空。低/高值范围可能重叠，但'matchVars'中可能没有匹配。

rxCall出错（＆＃34; RxMergeXdf＆＃34;，params）

1 个答案: