csvstat: sequence item 0: expected string, int found

Created by: alimanfoo

On a particular file, csvstat got half-way through generating a report when it threw an error...

$ csvstat --tab multiAllele-PF20-1.0.20110701.tab 
  1. Chr
    
    Nulls: No
    Unique values: 14
    5 most frequent values:
        MAL14:  16683
        MAL13:  14670
        MAL12:  10112
        MAL11:  9020
        MAL9:   7160
    Max length: 5
  2. Pos
    
    Nulls: No
    Min: 12048
    Max: 3255686
    Sum: 104682476273
    Mean: 1009990
    Median: 851416
    Unique values: 101373
    5 most frequent values:
        500304: 4
        262319: 3
        193593: 3
        879671: 3
        191113: 3
  3. PV0002-C
    
    Nulls: No
sequence item 0: expected string, int found

Here's a sample of the file...

Chr Pos PV0002-C    PV0004-C    PV0006-C    PV0008-C    PV0020-C    PV0023-C    PV0025-C    PV0028-C    PV0031-C    PV0035-C    PV0037-C    PV0041-C    PV0046-C    PV0048-C
MAL1    91099   0   0   0   0   1   0   0   1   1   0   1   0   1   0
MAL1    91104   0   0   0   0   1   0   0   1   3   3   1   0   1   0
MAL1    93363   1   1   1   1   0   1   0   1   1   1   0   0   1   1
MAL1    93382   1   1   1   1   0   1   0   1   1   1   0   0   1   1
MAL1    93384   1   1   1   1   0   1   0   1   1   1   0   0   1   1
MAL1    93390   1   1   1   1   0   1   0   1   1   1   0   0   1   1
MAL1    93439   1   1   1   1   0   1   0   1   1   1   0   0   1   1
MAL1    93457   1   1   1   1   0   1   0   1   1   1   0   0   1   1
MAL1    94008   1   1   1   1   0   1   0   1   1   1   0   0   1   1