fix: errtype/err type inconsistency (#42)

* Write ERRTYPE instead of ERR_TYPE column header in truth.tsv

Ensures truth and query tsv files use the same column names in each report. That enables easier downstream data processing.

* Update Output docs for ERRTYPE column name

While ERRTYPE is used in most variable names, ERR_TYPE is used only in this document and in the truth.tsv file. This change centers all references to this variable around the ERRTYPE name.

Author: JosephLalli

docs/dev/09-Outputs.md

@@ -41,7 +41,7 @@ Reports detailed information regarding each variant.
 | ALT | string | Alternate allele of this variant. |
 | QUAL | float | Quality score of this variant. |
 | TYPE | categorical | Type of variant (REF/SNP/INS/DEL/CPX). |
-| ERR_TYPE | categorical | Classification error type (TP/FP/FN). |
+| ERRTYPE | categorical | Classification error type (TP/FP/FN). |
 | CREDIT | float | Fraction of partial credit (in terms of correctness) that this variant received. --credit-threshold determines whether it is a true or false positive. |
 | CLUSTER | integer | 0-based index of the cluster on the current haplotype of this contig containing this variant. |
 | SUPERCLUSTER | integer | 0-based index of the supercluster on this contig containing this variant. |
@@ -187,4 +187,4 @@ This file reports for each edit (where called query sequence differs from truth
 
 # Output `.txt` Files
 ### parameters.txt
-This file stores all internal and command-line parameters used by vcfdist (for reproducibility and debugging purposes). Each line stores a single parameter in the format `parameter = value`.
+This file stores all internal and command-line parameters used by vcfdist (for reproducibility and debugging purposes). Each line stores a single parameter in the format `parameter = value`.

src/print.cpp

@@ -674,7 +674,7 @@ void write_results(std::unique_ptr<phaseblockData> & phasedata_ptr) {
         std::string out_query_fn = g.out_prefix + "query.tsv";
         if (g.verbosity >= 1) INFO("  Writing query variant results to '%s'", out_query_fn.data());
         FILE* out_query = fopen(out_query_fn.data(), "w");
-        fprintf(out_query, "CONTIG\tPOS\tHAP\tREF\tALT\tQUAL\tTYPE\tERR_TYPE"
+        fprintf(out_query, "CONTIG\tPOS\tHAP\tREF\tALT\tQUAL\tTYPE\tERRTYPE"
                 "\tCREDIT\tCLUSTER\tSUPERCLUSTER\tSYNC_GROUP\tREF_DIST\tQUERY_DIST\tLOCATION\n");
         for (std::string ctg : phasedata_ptr->contigs) {