我正在解析製表符分隔的文件。即使數字明確,也不會將數列識別爲數字。當我嘗試總結這些值時顯示錯誤:Argument ""97"" isn't numeric in addition (+)
和Perl返回0.將字符串轉換爲數字「參數不是數字錯誤」
我試過使用Scalar::Util qw(looks_like_number);
,但它產生了相同的結果'0'。有什麼我可以嘗試嗎?
下面是代碼:
open my $out_fh, '>', $final_variants or die qq{Unable to open "$final_variants" for output: $!};
open my $in_fh, '<', $tsv_file_new
or die qq{Unable to open "$tsv_file_new" for input: $!};
while (<$in_fh>) {
my @fields = split;
my $forward_reference = $fields[67];
my $reverse_reference = $fields[68];
my $forward_variant_reads = $fields[77];
my $reverse_variant_reads = $fields[78];
my $total_reads = (looks_like_number($forward_reference))
+ (looks_like_number($reverse_reference))
+ (looks_like_number($forward_variant_reads))
+ (looks_like_number($reverse_variant_reads));
my $current_final_line = $headerline . "\t"
. $forward_reference . "\t"
. $reverse_reference . "\t"
. $forward_variant_reads . "\t"
. $reverse_variant_reads . "\t"
. $total_reads . "\t";
print $out_fh $current_final_line, "\n";
}
' 「97」'確實不像一些,不像'97'。這聽起來像你的領域裏有引號。 – melpomene