d_size</dt>
<dd><p>Number of variants used to compute <code>ld_score</code>.</p></dd>


<dt>chi2</dt>
<dd><p>Vector of chi-squared statistics.</p></dd>


<dt>sample_size</dt>
<dd><p>Sample size of GWAS corresponding to chi-squared statistics.
Possibly a vector, or just a single value.</p></dd>


<dt>blocks</dt>
<dd><p>Either a single number specifying the number of blocks,
or a vector of integers specifying the block number of each <code>chi2</code> value.
Default is <code>200</code> for <code>snp_ldsc()</c